Connection fd callback before actual connection (#5494 )

2025-02-27 10:53:04 +02:00
690 changed files with 23858 additions and 84338 deletions
@@ -1,2 +1 @@
 nym-validator-rewarder/.sqlx/** diff=nodiff
-nym-node-status-api/nym-node-status-api/.sqlx/** diff=nodiff
@@ -9,7 +9,7 @@
      "version": "1.0.0",
      "dependencies": {
        "@actions/core": "^1.10.1",
-        "@actions/github": "^6.0.0",
+        "@actions/github": "^5.1.1",
        "@octokit/auth-action": "^4.0.1",
        "@octokit/rest": "^20.0.2",
        "hasha": "^5.2.0",
@@ -29,34 +29,22 @@
      }
    },
    "node_modules/@actions/github": {
-      "version": "6.0.0",
-      "resolved": "https://registry.npmjs.org/@actions/github/-/github-6.0.0.tgz",
-      "integrity": "sha512-alScpSVnYmjNEXboZjarjukQEzgCRmjMv6Xj47fsdnqGS73bjJNDpiiXmp8jr0UZLdUB6d9jW63IcmddUP+l0g==",
-      "license": "MIT",
+      "version": "5.1.1",
+      "resolved": "https://registry.npmjs.org/@actions/github/-/github-5.1.1.tgz",
+      "integrity": "sha512-Nk59rMDoJaV+mHCOJPXuvB1zIbomlKS0dmSIqPGxd0enAXBnOfn4VWF+CGtRCwXZG9Epa54tZA7VIRlJDS8A6g==",
      "dependencies": {
-        "@actions/http-client": "^2.2.0",
-        "@octokit/core": "^5.0.1",
-        "@octokit/plugin-paginate-rest": "^9.0.0",
-        "@octokit/plugin-rest-endpoint-methods": "^10.0.0"
+        "@actions/http-client": "^2.0.1",
+        "@octokit/core": "^3.6.0",
+        "@octokit/plugin-paginate-rest": "^2.17.0",
+        "@octokit/plugin-rest-endpoint-methods": "^5.13.0"
      }
    },
    "node_modules/@actions/http-client": {
-      "version": "2.2.3",
-      "resolved": "https://registry.npmjs.org/@actions/http-client/-/http-client-2.2.3.tgz",
-      "integrity": "sha512-mx8hyJi/hjFvbPokCg4uRd4ZX78t+YyRPtnKWwIl+RzNaVuFpQHfmlGVfsKEJN8LwTCvL+DfVgAM04XaHkm6bA==",
-      "license": "MIT",
-      "dependencies": {
-        "tunnel": "^0.0.6",
-        "undici": "^5.25.4"
-      }
-    },
-    "node_modules/@fastify/busboy": {
      "version": "2.1.1",
-      "resolved": "https://registry.npmjs.org/@fastify/busboy/-/busboy-2.1.1.tgz",
-      "integrity": "sha512-vBZP4NlzfOlerQTnba4aqZoMhE/a9HY7HRqoOPaETQcSQuWEIyZMHGfVu6w9wGtGK5fED5qRs2DteVCjOH60sA==",
-      "license": "MIT",
-      "engines": {
-        "node": ">=14"
+      "resolved": "https://registry.npmjs.org/@actions/http-client/-/http-client-2.1.1.tgz",
+      "integrity": "sha512-qhrkRMB40bbbLo7gF+0vu+X+UawOvQQqNAA/5Unx774RS8poaOhThDOG6BGmxvAnxhQnDp2BG/ZUm65xZILTpw==",
+      "dependencies": {
+        "tunnel": "^0.0.6"
      }
    },
    "node_modules/@octokit/auth-action": {
@@ -71,6 +59,14 @@
        "node": ">= 18"
      }
    },
+    "node_modules/@octokit/auth-action/node_modules/@octokit/auth-token": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/@octokit/auth-token/-/auth-token-4.0.0.tgz",
+      "integrity": "sha512-tY/msAuJo6ARbK6SPIxZrPBms3xPbfwBrulZe0Wtr/DIY9lje2HeV1uoebShn6mx7SjCHif6EjMvoREj+gZ+SA==",
+      "engines": {
+        "node": ">= 18"
+      }
+    },
    "node_modules/@octokit/auth-action/node_modules/@octokit/openapi-types": {
      "version": "20.0.0",
      "resolved": "https://registry.npmjs.org/@octokit/openapi-types/-/openapi-types-20.0.0.tgz",
@@ -85,152 +81,115 @@
      }
    },
    "node_modules/@octokit/auth-token": {
-      "version": "4.0.0",
-      "resolved": "https://registry.npmjs.org/@octokit/auth-token/-/auth-token-4.0.0.tgz",
-      "integrity": "sha512-tY/msAuJo6ARbK6SPIxZrPBms3xPbfwBrulZe0Wtr/DIY9lje2HeV1uoebShn6mx7SjCHif6EjMvoREj+gZ+SA==",
-      "license": "MIT",
-      "engines": {
-        "node": ">= 18"
+      "version": "2.5.0",
+      "resolved": "https://registry.npmjs.org/@octokit/auth-token/-/auth-token-2.5.0.tgz",
+      "integrity": "sha512-r5FVUJCOLl19AxiuZD2VRZ/ORjp/4IN98Of6YJoJOkY75CIBuYfmiNHGrDwXr+aLGG55igl9QrxX3hbiXlLb+g==",
+      "dependencies": {
+        "@octokit/types": "^6.0.3"
      }
    },
    "node_modules/@octokit/core": {
-      "version": "5.2.0",
-      "resolved": "https://registry.npmjs.org/@octokit/core/-/core-5.2.0.tgz",
-      "integrity": "sha512-1LFfa/qnMQvEOAdzlQymH0ulepxbxnCYAKJZfMci/5XJyIHWgEYnDmgnKakbTh7CH2tFQ5O60oYDvns4i9RAIg==",
-      "license": "MIT",
+      "version": "3.6.0",
+      "resolved": "https://registry.npmjs.org/@octokit/core/-/core-3.6.0.tgz",
+      "integrity": "sha512-7RKRKuA4xTjMhY+eG3jthb3hlZCsOwg3rztWh75Xc+ShDWOfDDATWbeZpAHBNRpm4Tv9WgBMOy1zEJYXG6NJ7Q==",
      "dependencies": {
-        "@octokit/auth-token": "^4.0.0",
-        "@octokit/graphql": "^7.1.0",
-        "@octokit/request": "^8.3.1",
-        "@octokit/request-error": "^5.1.0",
-        "@octokit/types": "^13.0.0",
+        "@octokit/auth-token": "^2.4.4",
+        "@octokit/graphql": "^4.5.8",
+        "@octokit/request": "^5.6.3",
+        "@octokit/request-error": "^2.0.5",
+        "@octokit/types": "^6.0.3",
        "before-after-hook": "^2.2.0",
        "universal-user-agent": "^6.0.0"
-      },
-      "engines": {
-        "node": ">= 18"
      }
    },
    "node_modules/@octokit/endpoint": {
-      "version": "9.0.6",
-      "resolved": "https://registry.npmjs.org/@octokit/endpoint/-/endpoint-9.0.6.tgz",
-      "integrity": "sha512-H1fNTMA57HbkFESSt3Y9+FBICv+0jFceJFPWDePYlR/iMGrwM5ph+Dd4XRQs+8X+PUFURLQgX9ChPfhJ/1uNQw==",
-      "license": "MIT",
+      "version": "6.0.12",
+      "resolved": "https://registry.npmjs.org/@octokit/endpoint/-/endpoint-6.0.12.tgz",
+      "integrity": "sha512-lF3puPwkQWGfkMClXb4k/eUT/nZKQfxinRWJrdZaJO85Dqwo/G0yOC434Jr2ojwafWJMYqFGFa5ms4jJUgujdA==",
      "dependencies": {
-        "@octokit/types": "^13.1.0",
+        "@octokit/types": "^6.0.3",
+        "is-plain-object": "^5.0.0",
        "universal-user-agent": "^6.0.0"
-      },
-      "engines": {
-        "node": ">= 18"
      }
    },
    "node_modules/@octokit/graphql": {
-      "version": "7.1.0",
-      "resolved": "https://registry.npmjs.org/@octokit/graphql/-/graphql-7.1.0.tgz",
-      "integrity": "sha512-r+oZUH7aMFui1ypZnAvZmn0KSqAUgE1/tUXIWaqUCa1758ts/Jio84GZuzsvUkme98kv0WFY8//n0J1Z+vsIsQ==",
-      "license": "MIT",
+      "version": "4.8.0",
+      "resolved": "https://registry.npmjs.org/@octokit/graphql/-/graphql-4.8.0.tgz",
+      "integrity": "sha512-0gv+qLSBLKF0z8TKaSKTsS39scVKF9dbMxJpj3U0vC7wjNWFuIpL/z76Qe2fiuCbDRcJSavkXsVtMS6/dtQQsg==",
      "dependencies": {
-        "@octokit/request": "^8.3.0",
-        "@octokit/types": "^13.0.0",
+        "@octokit/request": "^5.6.0",
+        "@octokit/types": "^6.0.3",
        "universal-user-agent": "^6.0.0"
-      },
-      "engines": {
-        "node": ">= 18"
      }
    },
    "node_modules/@octokit/openapi-types": {
-      "version": "23.0.1",
-      "resolved": "https://registry.npmjs.org/@octokit/openapi-types/-/openapi-types-23.0.1.tgz",
-      "integrity": "sha512-izFjMJ1sir0jn0ldEKhZ7xegCTj/ObmEDlEfpFrx4k/JyZSMRHbO3/rBwgE7f3m2DHt+RrNGIVw4wSmwnm3t/g==",
-      "license": "MIT"
+      "version": "12.11.0",
+      "resolved": "https://registry.npmjs.org/@octokit/openapi-types/-/openapi-types-12.11.0.tgz",
+      "integrity": "sha512-VsXyi8peyRq9PqIz/tpqiL2w3w80OgVMwBHltTml3LmVvXiphgeqmY9mvBw9Wu7e0QWk/fqD37ux8yP5uVekyQ=="
    },
    "node_modules/@octokit/plugin-paginate-rest": {
-      "version": "9.2.2",
-      "resolved": "https://registry.npmjs.org/@octokit/plugin-paginate-rest/-/plugin-paginate-rest-9.2.2.tgz",
-      "integrity": "sha512-u3KYkGF7GcZnSD/3UP0S7K5XUFT2FkOQdcfXZGZQPGv3lm4F2Xbf71lvjldr8c1H3nNbF+33cLEkWYbokGWqiQ==",
-      "license": "MIT",
+      "version": "2.21.3",
+      "resolved": "https://registry.npmjs.org/@octokit/plugin-paginate-rest/-/plugin-paginate-rest-2.21.3.tgz",
+      "integrity": "sha512-aCZTEf0y2h3OLbrgKkrfFdjRL6eSOo8komneVQJnYecAxIej7Bafor2xhuDJOIFau4pk0i/P28/XgtbyPF0ZHw==",
      "dependencies": {
-        "@octokit/types": "^12.6.0"
-      },
-      "engines": {
-        "node": ">= 18"
+        "@octokit/types": "^6.40.0"
      },
      "peerDependencies": {
-        "@octokit/core": "5"
-      }
-    },
-    "node_modules/@octokit/plugin-paginate-rest/node_modules/@octokit/openapi-types": {
-      "version": "20.0.0",
-      "resolved": "https://registry.npmjs.org/@octokit/openapi-types/-/openapi-types-20.0.0.tgz",
-      "integrity": "sha512-EtqRBEjp1dL/15V7WiX5LJMIxxkdiGJnabzYx5Apx4FkQIFgAfKumXeYAqqJCj1s+BMX4cPFIFC4OLCR6stlnA==",
-      "license": "MIT"
-    },
-    "node_modules/@octokit/plugin-paginate-rest/node_modules/@octokit/types": {
-      "version": "12.6.0",
-      "resolved": "https://registry.npmjs.org/@octokit/types/-/types-12.6.0.tgz",
-      "integrity": "sha512-1rhSOfRa6H9w4YwK0yrf5faDaDTb+yLyBUKOCV4xtCDB5VmIPqd/v9yr9o6SAzOAlRxMiRiCic6JVM1/kunVkw==",
-      "license": "MIT",
-      "dependencies": {
-        "@octokit/openapi-types": "^20.0.0"
+        "@octokit/core": ">=2"
      }
    },
    "node_modules/@octokit/plugin-rest-endpoint-methods": {
-      "version": "10.4.1",
-      "resolved": "https://registry.npmjs.org/@octokit/plugin-rest-endpoint-methods/-/plugin-rest-endpoint-methods-10.4.1.tgz",
-      "integrity": "sha512-xV1b+ceKV9KytQe3zCVqjg+8GTGfDYwaT1ATU5isiUyVtlVAO3HNdzpS4sr4GBx4hxQ46s7ITtZrAsxG22+rVg==",
-      "license": "MIT",
+      "version": "5.16.2",
+      "resolved": "https://registry.npmjs.org/@octokit/plugin-rest-endpoint-methods/-/plugin-rest-endpoint-methods-5.16.2.tgz",
+      "integrity": "sha512-8QFz29Fg5jDuTPXVtey05BLm7OB+M8fnvE64RNegzX7U+5NUXcOcnpTIK0YfSHBg8gYd0oxIq3IZTe9SfPZiRw==",
      "dependencies": {
-        "@octokit/types": "^12.6.0"
-      },
-      "engines": {
-        "node": ">= 18"
+        "@octokit/types": "^6.39.0",
+        "deprecation": "^2.3.1"
      },
      "peerDependencies": {
-        "@octokit/core": "5"
-      }
-    },
-    "node_modules/@octokit/plugin-rest-endpoint-methods/node_modules/@octokit/openapi-types": {
-      "version": "20.0.0",
-      "resolved": "https://registry.npmjs.org/@octokit/openapi-types/-/openapi-types-20.0.0.tgz",
-      "integrity": "sha512-EtqRBEjp1dL/15V7WiX5LJMIxxkdiGJnabzYx5Apx4FkQIFgAfKumXeYAqqJCj1s+BMX4cPFIFC4OLCR6stlnA==",
-      "license": "MIT"
-    },
-    "node_modules/@octokit/plugin-rest-endpoint-methods/node_modules/@octokit/types": {
-      "version": "12.6.0",
-      "resolved": "https://registry.npmjs.org/@octokit/types/-/types-12.6.0.tgz",
-      "integrity": "sha512-1rhSOfRa6H9w4YwK0yrf5faDaDTb+yLyBUKOCV4xtCDB5VmIPqd/v9yr9o6SAzOAlRxMiRiCic6JVM1/kunVkw==",
-      "license": "MIT",
-      "dependencies": {
-        "@octokit/openapi-types": "^20.0.0"
+        "@octokit/core": ">=3"
      }
    },
    "node_modules/@octokit/request": {
-      "version": "8.4.1",
-      "resolved": "https://registry.npmjs.org/@octokit/request/-/request-8.4.1.tgz",
-      "integrity": "sha512-qnB2+SY3hkCmBxZsR/MPCybNmbJe4KAlfWErXq+rBKkQJlbjdJeS85VI9r8UqeLYLvnAenU8Q1okM/0MBsAGXw==",
-      "license": "MIT",
+      "version": "5.6.3",
+      "resolved": "https://registry.npmjs.org/@octokit/request/-/request-5.6.3.tgz",
+      "integrity": "sha512-bFJl0I1KVc9jYTe9tdGGpAMPy32dLBXXo1dS/YwSCTL/2nd9XeHsY616RE3HPXDVk+a+dBuzyz5YdlXwcDTr2A==",
      "dependencies": {
-        "@octokit/endpoint": "^9.0.6",
-        "@octokit/request-error": "^5.1.1",
-        "@octokit/types": "^13.1.0",
+        "@octokit/endpoint": "^6.0.1",
+        "@octokit/request-error": "^2.1.0",
+        "@octokit/types": "^6.16.1",
+        "is-plain-object": "^5.0.0",
+        "node-fetch": "^2.6.7",
        "universal-user-agent": "^6.0.0"
-      },
-      "engines": {
-        "node": ">= 18"
      }
    },
    "node_modules/@octokit/request-error": {
-      "version": "5.1.1",
-      "resolved": "https://registry.npmjs.org/@octokit/request-error/-/request-error-5.1.1.tgz",
-      "integrity": "sha512-v9iyEQJH6ZntoENr9/yXxjuezh4My67CBSu9r6Ve/05Iu5gNgnisNWOsoJHTP6k0Rr0+HQIpnH+kyammu90q/g==",
-      "license": "MIT",
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/@octokit/request-error/-/request-error-2.1.0.tgz",
+      "integrity": "sha512-1VIvgXxs9WHSjicsRwq8PlR2LR2x6DwsJAaFgzdi0JfJoGSO8mYI/cHJQ+9FbN21aa+DrgNLnwObmyeSC8Rmpg==",
      "dependencies": {
-        "@octokit/types": "^13.1.0",
+        "@octokit/types": "^6.0.3",
        "deprecation": "^2.0.0",
        "once": "^1.4.0"
+      }
+    },
+    "node_modules/@octokit/request/node_modules/node-fetch": {
+      "version": "2.7.0",
+      "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.7.0.tgz",
+      "integrity": "sha512-c4FRfUm/dbcWZ7U+1Wq0AwCyFL+3nt2bEw05wfxSz+DWpWsitgmSgYmy2dQdWyKC1694ELPqMs/YzUSNozLt8A==",
+      "dependencies": {
+        "whatwg-url": "^5.0.0"
      },
      "engines": {
-        "node": ">= 18"
+        "node": "4.x || >=6.0.0"
+      },
+      "peerDependencies": {
+        "encoding": "^0.1.0"
+      },
+      "peerDependenciesMeta": {
+        "encoding": {
+          "optional": true
+        }
      }
    },
    "node_modules/@octokit/rest": {
@@ -247,6 +206,89 @@
        "node": ">= 18"
      }
    },
+    "node_modules/@octokit/rest/node_modules/@octokit/auth-token": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/@octokit/auth-token/-/auth-token-4.0.0.tgz",
+      "integrity": "sha512-tY/msAuJo6ARbK6SPIxZrPBms3xPbfwBrulZe0Wtr/DIY9lje2HeV1uoebShn6mx7SjCHif6EjMvoREj+gZ+SA==",
+      "engines": {
+        "node": ">= 18"
+      }
+    },
+    "node_modules/@octokit/rest/node_modules/@octokit/core": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/@octokit/core/-/core-5.0.0.tgz",
+      "integrity": "sha512-YbAtMWIrbZ9FCXbLwT9wWB8TyLjq9mxpKdgB3dUNxQcIVTf9hJ70gRPwAcqGZdY6WdJPZ0I7jLaaNDCiloGN2A==",
+      "dependencies": {
+        "@octokit/auth-token": "^4.0.0",
+        "@octokit/graphql": "^7.0.0",
+        "@octokit/request": "^8.0.2",
+        "@octokit/request-error": "^5.0.0",
+        "@octokit/types": "^11.0.0",
+        "before-after-hook": "^2.2.0",
+        "universal-user-agent": "^6.0.0"
+      },
+      "engines": {
+        "node": ">= 18"
+      }
+    },
+    "node_modules/@octokit/rest/node_modules/@octokit/endpoint": {
+      "version": "9.0.0",
+      "resolved": "https://registry.npmjs.org/@octokit/endpoint/-/endpoint-9.0.0.tgz",
+      "integrity": "sha512-szrQhiqJ88gghWY2Htt8MqUDO6++E/EIXqJ2ZEp5ma3uGS46o7LZAzSLt49myB7rT+Hfw5Y6gO3LmOxGzHijAQ==",
+      "dependencies": {
+        "@octokit/types": "^11.0.0",
+        "is-plain-object": "^5.0.0",
+        "universal-user-agent": "^6.0.0"
+      },
+      "engines": {
+        "node": ">= 18"
+      }
+    },
+    "node_modules/@octokit/rest/node_modules/@octokit/graphql": {
+      "version": "7.0.1",
+      "resolved": "https://registry.npmjs.org/@octokit/graphql/-/graphql-7.0.1.tgz",
+      "integrity": "sha512-T5S3oZ1JOE58gom6MIcrgwZXzTaxRnxBso58xhozxHpOqSTgDS6YNeEUvZ/kRvXgPrRz/KHnZhtb7jUMRi9E6w==",
+      "dependencies": {
+        "@octokit/request": "^8.0.1",
+        "@octokit/types": "^11.0.0",
+        "universal-user-agent": "^6.0.0"
+      },
+      "engines": {
+        "node": ">= 18"
+      }
+    },
+    "node_modules/@octokit/rest/node_modules/@octokit/openapi-types": {
+      "version": "18.0.0",
+      "resolved": "https://registry.npmjs.org/@octokit/openapi-types/-/openapi-types-18.0.0.tgz",
+      "integrity": "sha512-V8GImKs3TeQRxRtXFpG2wl19V7444NIOTDF24AWuIbmNaNYOQMWRbjcGDXV5B+0n887fgDcuMNOmlul+k+oJtw=="
+    },
+    "node_modules/@octokit/rest/node_modules/@octokit/plugin-paginate-rest": {
+      "version": "9.2.1",
+      "resolved": "https://registry.npmjs.org/@octokit/plugin-paginate-rest/-/plugin-paginate-rest-9.2.1.tgz",
+      "integrity": "sha512-wfGhE/TAkXZRLjksFXuDZdmGnJQHvtU/joFQdweXUgzo1XwvBCD4o4+75NtFfjfLK5IwLf9vHTfSiU3sLRYpRw==",
+      "dependencies": {
+        "@octokit/types": "^12.6.0"
+      },
+      "engines": {
+        "node": ">= 18"
+      },
+      "peerDependencies": {
+        "@octokit/core": "5"
+      }
+    },
+    "node_modules/@octokit/rest/node_modules/@octokit/plugin-paginate-rest/node_modules/@octokit/openapi-types": {
+      "version": "20.0.0",
+      "resolved": "https://registry.npmjs.org/@octokit/openapi-types/-/openapi-types-20.0.0.tgz",
+      "integrity": "sha512-EtqRBEjp1dL/15V7WiX5LJMIxxkdiGJnabzYx5Apx4FkQIFgAfKumXeYAqqJCj1s+BMX4cPFIFC4OLCR6stlnA=="
+    },
+    "node_modules/@octokit/rest/node_modules/@octokit/plugin-paginate-rest/node_modules/@octokit/types": {
+      "version": "12.6.0",
+      "resolved": "https://registry.npmjs.org/@octokit/types/-/types-12.6.0.tgz",
+      "integrity": "sha512-1rhSOfRa6H9w4YwK0yrf5faDaDTb+yLyBUKOCV4xtCDB5VmIPqd/v9yr9o6SAzOAlRxMiRiCic6JVM1/kunVkw==",
+      "dependencies": {
+        "@octokit/openapi-types": "^20.0.0"
+      }
+    },
    "node_modules/@octokit/rest/node_modules/@octokit/plugin-request-log": {
      "version": "4.0.0",
      "resolved": "https://registry.npmjs.org/@octokit/plugin-request-log/-/plugin-request-log-4.0.0.tgz",
@@ -258,13 +300,75 @@
        "@octokit/core": ">=5"
      }
    },
-    "node_modules/@octokit/types": {
-      "version": "13.8.0",
-      "resolved": "https://registry.npmjs.org/@octokit/types/-/types-13.8.0.tgz",
-      "integrity": "sha512-x7DjTIbEpEWXK99DMd01QfWy0hd5h4EN+Q7shkdKds3otGQP+oWE/y0A76i1OvH9fygo4ddvNf7ZvF0t78P98A==",
-      "license": "MIT",
+    "node_modules/@octokit/rest/node_modules/@octokit/plugin-rest-endpoint-methods": {
+      "version": "10.4.1",
+      "resolved": "https://registry.npmjs.org/@octokit/plugin-rest-endpoint-methods/-/plugin-rest-endpoint-methods-10.4.1.tgz",
+      "integrity": "sha512-xV1b+ceKV9KytQe3zCVqjg+8GTGfDYwaT1ATU5isiUyVtlVAO3HNdzpS4sr4GBx4hxQ46s7ITtZrAsxG22+rVg==",
      "dependencies": {
-        "@octokit/openapi-types": "^23.0.1"
+        "@octokit/types": "^12.6.0"
+      },
+      "engines": {
+        "node": ">= 18"
+      },
+      "peerDependencies": {
+        "@octokit/core": "5"
+      }
+    },
+    "node_modules/@octokit/rest/node_modules/@octokit/plugin-rest-endpoint-methods/node_modules/@octokit/openapi-types": {
+      "version": "20.0.0",
+      "resolved": "https://registry.npmjs.org/@octokit/openapi-types/-/openapi-types-20.0.0.tgz",
+      "integrity": "sha512-EtqRBEjp1dL/15V7WiX5LJMIxxkdiGJnabzYx5Apx4FkQIFgAfKumXeYAqqJCj1s+BMX4cPFIFC4OLCR6stlnA=="
+    },
+    "node_modules/@octokit/rest/node_modules/@octokit/plugin-rest-endpoint-methods/node_modules/@octokit/types": {
+      "version": "12.6.0",
+      "resolved": "https://registry.npmjs.org/@octokit/types/-/types-12.6.0.tgz",
+      "integrity": "sha512-1rhSOfRa6H9w4YwK0yrf5faDaDTb+yLyBUKOCV4xtCDB5VmIPqd/v9yr9o6SAzOAlRxMiRiCic6JVM1/kunVkw==",
+      "dependencies": {
+        "@octokit/openapi-types": "^20.0.0"
+      }
+    },
+    "node_modules/@octokit/rest/node_modules/@octokit/request": {
+      "version": "8.1.1",
+      "resolved": "https://registry.npmjs.org/@octokit/request/-/request-8.1.1.tgz",
+      "integrity": "sha512-8N+tdUz4aCqQmXl8FpHYfKG9GelDFd7XGVzyN8rc6WxVlYcfpHECnuRkgquzz+WzvHTK62co5di8gSXnzASZPQ==",
+      "dependencies": {
+        "@octokit/endpoint": "^9.0.0",
+        "@octokit/request-error": "^5.0.0",
+        "@octokit/types": "^11.1.0",
+        "is-plain-object": "^5.0.0",
+        "universal-user-agent": "^6.0.0"
+      },
+      "engines": {
+        "node": ">= 18"
+      }
+    },
+    "node_modules/@octokit/rest/node_modules/@octokit/request-error": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/@octokit/request-error/-/request-error-5.0.0.tgz",
+      "integrity": "sha512-1ue0DH0Lif5iEqT52+Rf/hf0RmGO9NWFjrzmrkArpG9trFfDM/efx00BJHdLGuro4BR/gECxCU2Twf5OKrRFsQ==",
+      "dependencies": {
+        "@octokit/types": "^11.0.0",
+        "deprecation": "^2.0.0",
+        "once": "^1.4.0"
+      },
+      "engines": {
+        "node": ">= 18"
+      }
+    },
+    "node_modules/@octokit/rest/node_modules/@octokit/types": {
+      "version": "11.1.0",
+      "resolved": "https://registry.npmjs.org/@octokit/types/-/types-11.1.0.tgz",
+      "integrity": "sha512-Fz0+7GyLm/bHt8fwEqgvRBWwIV1S6wRRyq+V6exRKLVWaKGsuy6H9QFYeBVDV7rK6fO3XwHgQOPxv+cLj2zpXQ==",
+      "dependencies": {
+        "@octokit/openapi-types": "^18.0.0"
+      }
+    },
+    "node_modules/@octokit/types": {
+      "version": "6.41.0",
+      "resolved": "https://registry.npmjs.org/@octokit/types/-/types-6.41.0.tgz",
+      "integrity": "sha512-eJ2jbzjdijiL3B4PrSQaSjuF2sPEQPVCPzBvTHJD9Nz+9dw2SGH4K4xeQJ77YfTq5bRQ+bD8wT11JbeDPmxmGg==",
+      "dependencies": {
+        "@octokit/openapi-types": "^12.11.0"
      }
    },
    "node_modules/@vercel/ncc": {
@@ -292,8 +396,7 @@
    "node_modules/deprecation": {
      "version": "2.3.1",
      "resolved": "https://registry.npmjs.org/deprecation/-/deprecation-2.3.1.tgz",
-      "integrity": "sha512-xmHIy4F3scKVwMsQ4WnVaS8bHOx0DmVwRywosKhaILI0ywMDWPtBSku2HNxRvF7jtwDRsoEwYQSfbxj8b7RlJQ==",
-      "license": "ISC"
+      "integrity": "sha512-xmHIy4F3scKVwMsQ4WnVaS8bHOx0DmVwRywosKhaILI0ywMDWPtBSku2HNxRvF7jtwDRsoEwYQSfbxj8b7RlJQ=="
    },
    "node_modules/fetch-blob": {
      "version": "3.2.0",
@@ -343,6 +446,14 @@
        "url": "https://github.com/sponsors/sindresorhus"
      }
    },
+    "node_modules/is-plain-object": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/is-plain-object/-/is-plain-object-5.0.0.tgz",
+      "integrity": "sha512-VRSzKkbMm5jMDoKLbltAkFQ5Qr7VDiTFGXxYFXXowVj387GeGNOCsOH6Msy00SGZ3Fp84b1Naa1psqgcCIEP5Q==",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
    "node_modules/is-stream": {
      "version": "2.0.1",
      "resolved": "https://registry.npmjs.org/is-stream/-/is-stream-2.0.1.tgz",
@@ -393,11 +504,15 @@
      "version": "1.4.0",
      "resolved": "https://registry.npmjs.org/once/-/once-1.4.0.tgz",
      "integrity": "sha512-lNaJgI+2Q5URQBkccEKHTQOPaXdUxnZZElQTZY0MFUAuaEqe1E+Nyvgdz/aIyNi6Z9MzO5dv1H8n58/GELp3+w==",
-      "license": "ISC",
      "dependencies": {
        "wrappy": "1"
      }
    },
+    "node_modules/tr46": {
+      "version": "0.0.3",
+      "resolved": "https://registry.npmjs.org/tr46/-/tr46-0.0.3.tgz",
+      "integrity": "sha512-N3WMsuqV66lT30CrXNbEjx4GEwlow3v6rr4mCcv6prnfwhS01rkgyFdjPNBYd9br7LpXV1+Emh01fHnq2Gdgrw=="
+    },
    "node_modules/tunnel": {
      "version": "0.0.6",
      "resolved": "https://registry.npmjs.org/tunnel/-/tunnel-0.0.6.tgz",
@@ -414,18 +529,6 @@
        "node": ">=8"
      }
    },
-    "node_modules/undici": {
-      "version": "5.28.5",
-      "resolved": "https://registry.npmjs.org/undici/-/undici-5.28.5.tgz",
-      "integrity": "sha512-zICwjrDrcrUE0pyyJc1I2QzBkLM8FINsgOrt6WjA+BgajVq9Nxu2PbFFXUrAggLfDXlZGZBVZYw7WNV5KiBiBA==",
-      "license": "MIT",
-      "dependencies": {
-        "@fastify/busboy": "^2.0.0"
-      },
-      "engines": {
-        "node": ">=14.0"
-      }
-    },
    "node_modules/universal-user-agent": {
      "version": "6.0.0",
      "resolved": "https://registry.npmjs.org/universal-user-agent/-/universal-user-agent-6.0.0.tgz",
@@ -447,11 +550,24 @@
        "node": ">= 8"
      }
    },
+    "node_modules/webidl-conversions": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-3.0.1.tgz",
+      "integrity": "sha512-2JAn3z8AR6rjK8Sm8orRC0h/bcl/DqL7tRPdGZ4I1CjdF+EaMLmYxBHyXuKL849eucPFhvBoxMsflfOb8kxaeQ=="
+    },
+    "node_modules/whatwg-url": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-5.0.0.tgz",
+      "integrity": "sha512-saE57nupxk6v3HY35+jzBwYa0rKSy0XR8JSxZPwgLr7ys0IBzhGviA1/TUGJLmSVqs8pb9AnvICXEuOHLprYTw==",
+      "dependencies": {
+        "tr46": "~0.0.3",
+        "webidl-conversions": "^3.0.0"
+      }
+    },
    "node_modules/wrappy": {
      "version": "1.0.2",
      "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
-      "integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ==",
-      "license": "ISC"
+      "integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ=="
    }
  }
 }
@@ -11,7 +11,7 @@
  },
  "dependencies": {
    "@actions/core": "^1.10.1",
-    "@actions/github": "^6.0.0",
+    "@actions/github": "^5.1.1",
    "@octokit/auth-action": "^4.0.1",
    "@octokit/rest": "^20.0.2",
    "hasha": "^5.2.0",
@@ -26,7 +26,6 @@ jobs:
    runs-on: ${{ matrix.platform }}
    env:
      CARGO_TERM_COLOR: always
-      RUSTUP_PERMIT_COPY_RENAME: 1
    steps:
      - uses: actions/checkout@v4

@@ -100,6 +99,7 @@ jobs:
          cp target/release/nymvisor $OUTPUT_DIR
          cp target/release/nym-node $OUTPUT_DIR
          cp target/release/nym-cli $OUTPUT_DIR
+          cp target/release/explorer-api $OUTPUT_DIR
          if [ ${{ github.event_name == 'workflow_dispatch' && inputs.enable_deb == true }} = true ]; then
            cp target/debian/*.deb $OUTPUT_DIR
          fi
@@ -12,7 +12,6 @@ jobs:
    runs-on: arc-ubuntu-22.04
    env:
      CARGO_TERM_COLOR: always
-      RUSTUP_PERMIT_COPY_RENAME: 1
    steps:
      - name: Check out repository code
        uses: actions/checkout@v4
@@ -27,12 +27,6 @@ on:
      - '.github/workflows/ci-build.yml'
  workflow_dispatch:

-concurrency:
-  # only 1 concurrent `ci-build` allowed per branch
-  # https://docs.github.com/en/actions/writing-workflows/workflow-syntax-for-github-actions#example-using-concurrency-and-the-default-behavior
-  group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: true
-
 jobs:
  build:
    strategy:
@@ -43,7 +37,6 @@ jobs:
    env:
      CARGO_TERM_COLOR: always
      IPINFO_API_TOKEN: ${{ secrets.IPINFO_API_TOKEN }}
-      RUSTUP_PERMIT_COPY_RENAME: 1
    steps:
      - name: Install Dependencies (Linux)
        run: sudo apt-get update && sudo apt-get -y install libwebkit2gtk-4.0-dev build-essential curl wget libssl-dev libgtk-3-dev libudev-dev squashfs-tools protobuf-compiler
@@ -1,57 +0,0 @@
-name: ci-check-ns-api-version
-
-on:
-  pull_request:
-    paths:
-      - "nym-node-status-api/**"
-
-env:
-  WORKING_DIRECTORY: "nym-node-status-api/nym-node-status-api"
-
-jobs:
-  check-if-tag-exists:
-    runs-on: arc-ubuntu-22.04-dind
-    steps:
-      - name: Checkout repo
-        uses: actions/checkout@v4
-
-      - name: Get version from cargo.toml
-        uses: mikefarah/yq@v4.45.1
-        id: get_version
-        with:
-          cmd: yq -oy '.package.version' ${{ env.WORKING_DIRECTORY }}/Cargo.toml
-
-      - name: Check if git tag exists
-        run: |
-          TAG=${{ env.WORKING_DIRECTORY }}-${{ steps.get_version.outputs.result }}
-          if [[ -z "$TAG" ]]; then
-            echo "Tag is empty"
-            exit 1
-          fi
-          git ls-remote --tags origin | awk '{print $2}'
-          if git ls-remote --tags origin | awk '{print $2}' | grep -q "refs/tags/$TAG$" ; then
-              echo "Tag '$TAG' ALREADY EXISTS on the remote"
-              exit 1
-          else
-              echo "Tag '$TAG' does not exist on the remote"
-          fi
-      - name: Check if harbor tag exists
-        run: |
-          TAG=${{ steps.get_version.outputs.result }}
-          registry=https://harbor.nymte.ch
-          repo_name=nym/node-status-api
-          if [[ -z $TAG ]]; then
-            echo "Tag is empty"
-            exit 1
-          fi
-          curl -su ${{ secrets.HARBOR_ROBOT_USERNAME }}:${{ secrets.HARBOR_ROBOT_SECRET }} "$registry/v2/$repo_name/tags/list" | jq
-          exists=$(curl -su ${{ secrets.HARBOR_ROBOT_USERNAME }}:${{ secrets.HARBOR_ROBOT_SECRET }} "$registry/v2/$repo_name/tags/list" | jq --arg tag $TAG '.tags | contains([$tag])' )
-          if [[ $exists = "true" ]]; then
-            echo "Version '$TAG' defined in Cargo.toml ALREADY EXISTS as tag in harbor repo"
-            exit 1
-          elif [[ $exists = "false" ]]; then
-            echo "Version '$TAG' doesn't exist on the remote"
-          else
-            echo "Unknown output '$exists'"
-            exit 1
-          fi
@@ -11,8 +11,6 @@ on:
 jobs:
  build:
    runs-on: arc-ubuntu-20.04
-    env:
-      RUSTUP_PERMIT_COPY_RENAME: 1
    defaults:
      run:
        working-directory: documentation/docs
@@ -16,8 +16,6 @@ on:
 jobs:
  build:
    runs-on: arc-ubuntu-20.04
-    env:
-      RUSTUP_PERMIT_COPY_RENAME: 1
    steps:
      - uses: actions/checkout@v4
      - uses: rlespinasse/github-slug-action@v3.x
@@ -44,7 +42,7 @@ jobs:
      - name: Set up Go
        uses: actions/setup-go@v5
        with:
-          go-version: "1.23.7"
+          go-version: '1.20'

      - name: Install
        run: yarn
@@ -14,7 +14,6 @@ jobs:
    runs-on: arc-ubuntu-20.04
    env:
      CARGO_TERM_COLOR: always
-      RUSTUP_PERMIT_COPY_RENAME: 1
    steps:
      - name: Install Dependencies (Linux)
        run: sudo apt-get update && sudo apt-get -y install libwebkit2gtk-4.0-dev build-essential curl wget libssl-dev libgtk-3-dev squashfs-tools
@@ -14,7 +14,6 @@ jobs:
    runs-on: arc-ubuntu-20.04
    env:
      CARGO_TERM_COLOR: always
-      RUSTUP_PERMIT_COPY_RENAME: 1
    steps:
      - uses: actions/checkout@v4

@@ -33,7 +32,7 @@ jobs:
      - name: Set up Go
        uses: actions/setup-go@v5
        with:
-          go-version: "1.23.7"
+          go-version: '1.20'

      - name: Install wasm-pack
        run: curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh
@@ -49,7 +49,7 @@ jobs:
            "build-tools;$SDK_BUILDTOOLS_VERSION"

      - name: Install Rust toolchain
-        uses: dtolnay/rust-toolchain@1.100.0
+        uses: dtolnay/rust-toolchain@1.90.0

      - name: Install rust android targets
        run: |
@@ -31,7 +31,12 @@ jobs:
      - name: Set up Go
        uses: actions/setup-go@v5
        with:
-          go-version: "1.23.7"
+          go-version: "1.20"
+
+      - name: Install TinyGo
+        uses: acifani/setup-tinygo@v2
+        with:
+          tinygo-version: "0.27.0"

      - name: Install dependencies
        run: yarn
@@ -4,216 +4,6 @@ Post 1.0.0 release, the changelog format is based on [Keep a Changelog](https://

 ## [Unreleased]

-## [2025.5-chokito] (2025-03-18)
-
- build(deps): bump braces from 3.0.2 to 3.0.3 in /sdk/typescript/packages/nodejs-client ([#5611])
- build(deps-dev): bump webpack-dev-middleware from 5.3.3 to 5.3.4 in /wasm/client/internal-dev ([#5610])
- Export lane queue lengths in sdk ([#5609])
- Chore/more payment watcher debug endpoints ([#5608])
- build(deps): bump @babel/helpers from 7.24.4 to 7.26.10 ([#5606])
- Chore/update bls12 381 fork ([#5605])
- chore: change auth v2 timestamp skew and allow values from the future ([#5604])
- Chore/payment watcher debug endpoints ([#5601])
- Allow resetting all SURB sender tags ([#5600])
- introduce internal tool for checking signer status ([#5598])
- build(deps-dev): bump webpack from 5.77.0 to 5.98.0 in /wasm/mix-fetch/internal-dev ([#5597])
- build(deps): bump body-parser and express in /wasm/mix-fetch/internal-dev ([#5596])
- build(deps): bump serve-static and express in /wasm/mix-fetch/internal-dev ([#5594])
- build(deps-dev): bump ws from 8.13.0 to 8.18.1 in /wasm/mix-fetch/internal-dev ([#5593])
- build(deps): bump cookie and express in /wasm/client/internal-dev ([#5592])
- build(deps): bump cookie and express in /wasm/mix-fetch/internal-dev ([#5591])
- build(deps): bump braces from 3.0.2 to 3.0.3 in /wasm/zknym-lib/internal-dev ([#5590])
- build(deps): bump webpack-dev-middleware from 5.3.3 to 5.3.4 in /wasm/zknym-lib/internal-dev ([#5589])
- build(deps): bump tempfile from 3.17.1 to 3.18.0 ([#5588])
- build(deps): bump tokio from 1.43.0 to 1.44.0 ([#5587])
- build(deps): bump the patch-updates group with 8 updates ([#5585])
- build(deps): bump ring from 0.17.9 to 0.17.13 ([#5583])
- delete double memo field in send modal ([#5578])
- Server Side internal DoT/DoH opt out ([#5577])
- Rust SDK SURB example: change hardcoded file to tempdir ([#5576])
- Add /v3/nym-nodes ([#5569])
- chore: start sending v2 sphinx packets ([#5554])
- build(deps): bump the patch-updates group across 1 directory with 14 updates ([#5549])
- build(deps): bump uuid from 1.13.2 to 1.15.1 ([#5542])
- build(deps): bump rs_merkle from 1.4.2 to 1.5.0 ([#5541])
- feature: v2 authentication request ([#5537])
- Set RUSTUP_PERMIT_COPY_RENAME ([#5533])
- feature: disallow routing mix packets to nodes not present in the topology ([#5526])
- Make "Memo" visible per default on send NYM ([#5524])
- feat: make sure any terminated task kills the watcher and write run info to db ([#5517])
- Another total_stake SQL fix ([#5516])
- Fix total_stake on SQL update ([#5514])
- build(deps): bump flate2 from 1.0.35 to 1.1.0 ([#5510])
- build(deps): bump itertools from 0.13.0 to 0.14.0 ([#5509])
- build(deps): bump the patch-updates group with 2 updates ([#5505])
- Treat gateways as Nym Nodes ([#5504])
- Update version in Cargo.toml ([#5503])
- feat: use ct_eq for checking bearer token ([#5501])
- Add extra args for the probe ([#5499])
- Fix stats bug & remove HM caching ([#5495])
- fix: Cargo.lock for contracts ([#5489])
- Display error messages if IPv4 or IPv6 address not found on nymtun0 ([#5465])
-
-[#5611]: https://github.com/nymtech/nym/pull/5611
-[#5610]: https://github.com/nymtech/nym/pull/5610
-[#5609]: https://github.com/nymtech/nym/pull/5609
-[#5608]: https://github.com/nymtech/nym/pull/5608
-[#5606]: https://github.com/nymtech/nym/pull/5606
-[#5605]: https://github.com/nymtech/nym/pull/5605
-[#5604]: https://github.com/nymtech/nym/pull/5604
-[#5601]: https://github.com/nymtech/nym/pull/5601
-[#5600]: https://github.com/nymtech/nym/pull/5600
-[#5598]: https://github.com/nymtech/nym/pull/5598
-[#5597]: https://github.com/nymtech/nym/pull/5597
-[#5596]: https://github.com/nymtech/nym/pull/5596
-[#5594]: https://github.com/nymtech/nym/pull/5594
-[#5593]: https://github.com/nymtech/nym/pull/5593
-[#5592]: https://github.com/nymtech/nym/pull/5592
-[#5591]: https://github.com/nymtech/nym/pull/5591
-[#5590]: https://github.com/nymtech/nym/pull/5590
-[#5589]: https://github.com/nymtech/nym/pull/5589
-[#5588]: https://github.com/nymtech/nym/pull/5588
-[#5587]: https://github.com/nymtech/nym/pull/5587
-[#5585]: https://github.com/nymtech/nym/pull/5585
-[#5583]: https://github.com/nymtech/nym/pull/5583
-[#5578]: https://github.com/nymtech/nym/pull/5578
-[#5577]: https://github.com/nymtech/nym/pull/5577
-[#5576]: https://github.com/nymtech/nym/pull/5576
-[#5569]: https://github.com/nymtech/nym/pull/5569
-[#5554]: https://github.com/nymtech/nym/pull/5554
-[#5549]: https://github.com/nymtech/nym/pull/5549
-[#5542]: https://github.com/nymtech/nym/pull/5542
-[#5541]: https://github.com/nymtech/nym/pull/5541
-[#5537]: https://github.com/nymtech/nym/pull/5537
-[#5533]: https://github.com/nymtech/nym/pull/5533
-[#5526]: https://github.com/nymtech/nym/pull/5526
-[#5524]: https://github.com/nymtech/nym/pull/5524
-[#5517]: https://github.com/nymtech/nym/pull/5517
-[#5516]: https://github.com/nymtech/nym/pull/5516
-[#5514]: https://github.com/nymtech/nym/pull/5514
-[#5510]: https://github.com/nymtech/nym/pull/5510
-[#5509]: https://github.com/nymtech/nym/pull/5509
-[#5505]: https://github.com/nymtech/nym/pull/5505
-[#5504]: https://github.com/nymtech/nym/pull/5504
-[#5503]: https://github.com/nymtech/nym/pull/5503
-[#5501]: https://github.com/nymtech/nym/pull/5501
-[#5499]: https://github.com/nymtech/nym/pull/5499
-[#5495]: https://github.com/nymtech/nym/pull/5495
-[#5489]: https://github.com/nymtech/nym/pull/5489
-[#5465]: https://github.com/nymtech/nym/pull/5465
-
-## [2025.4-dorina-patched] (2025-03-06)
-
- use legacy crypto for constructing SURB headers ([#5579])
- bugfix: make sure to correctly decode response content when putting it into error message ([#5571])
- Tweak surb management to be more conservative ([#5570])
- Deserialize v5 authenticator requests ([#5568])
- chore: additional logs when attempting to load ecash keys ([#5567])
- add full response body to error message upon decoding failure ([#5566])
- hotfix: ensure we bail on merkle leaves insertion upon missing data ([#5565])
- feature: v2 authentication request (#5537) ([#5563])
- Create authenticator v5 request/response types ([#5561])
-
-[#5579]: https://github.com/nymtech/nym/pull/5579
-[#5571]: https://github.com/nymtech/nym/pull/5571
-[#5570]: https://github.com/nymtech/nym/pull/5570
-[#5568]: https://github.com/nymtech/nym/pull/5568
-[#5567]: https://github.com/nymtech/nym/pull/5567
-[#5566]: https://github.com/nymtech/nym/pull/5566
-[#5565]: https://github.com/nymtech/nym/pull/5565
-[#5563]: https://github.com/nymtech/nym/pull/5563
-[#5561]: https://github.com/nymtech/nym/pull/5561
-
-## [2025.4-dorina] (2025-03-04)
-
- fixed sphinx version metrics registration ([#5546])
- Feature/chain status api ([#5539])
- Add SURBs soft threshold ([#5535])
- Simplify IPR v8 ([#5532])
- Shared instance for DNS AsyncResolver ([#5523])
- merge #5512 again after reverting due to incorrect rebase ([#5520])
- cherry-pick 17d3ff2d775f61aee381d90a304ed416c08f33fc onto dorina ([#5519])
- cherry-pick 6e5d0dac1b75413c5f09122b0d953f8ec6ef48df onto dorina ([#5518])
- chore: workspace global panic preventing lints ([#5512])
- bugfix: dont query for ecash apis unless necessary when spending ticketbooks ([#5508])
- bugfix: bound check when recovering a reply SURB ([#5502])
- chore: removed all old coconut code ([#5500])
- IPR request types v8 ([#5498])
- Support static routes for HTTP requests ([#5487])
- build(deps): bump the patch-updates group across 1 directory with 3 updates ([#5482])
- added missing import to doctest ([#5480])
- adjusted TestSetup::new_complex to ensure bonded node's existence ([#5478])
- Trigger contracts CI on main workspace Cargo changes ([#5477])
- build(deps): bump http from 1.1.0 to 1.2.0 ([#5472])
- build(deps): bump utoipa-swagger-ui from 8.0.3 to 8.1.0 ([#5471])
- build(deps): bump colored from 2.1.0 to 2.2.0 ([#5470])
- build(deps): bump celes from 2.4.0 to 2.5.0 ([#5469])
- build(deps): bump the patch-updates group with 2 updates ([#5467])
- build(deps): bump elliptic from 6.5.4 to 6.6.1 in /docker/typescript_client/upload_contract ([#5463])
- Run cargo autoinherit ([#5460])
- Fix clippy::precedence ([#5457])
- Provide Interval context with node descriptor endpoints ([#5456])
- fix: update fx average rate calcs to ignore 0 values ([#5454])
- Feature/add gbp currency ([#5453])
- Add helper to extract a list of sqlite files with journal files wal/shm ([#5452])
- Add a middleware layer to the nym api allowing for data compression ([#5451])
- Condense core API functionalities and enable gzip decompression for reqwest payloads ([#5450])
- build(deps): bump uniffi_build from 0.25.3 to 0.29.0 ([#5448])
- Upgrade tower to 0.5.2 ([#5446])
- build(deps): bump hickory-proto from 0.24.2 to 0.24.3 ([#5444])
- Seedable clients ([#5440])
- build(deps): bump the patch-updates group across 1 directory with 10 updates ([#5439])
- Remove all recv_with_delay and add shutdown condition to loops in client-core ([#5435])
- Disable the test for checking the remaining bandwidth in nym-node-status-api ([#5425])
- Dz nym node stats ([#5418])
- build(deps): bump hyper from 1.4.1 to 1.6.0 ([#5416])
- build(deps): bump publicsuffix from 2.2.3 to 2.3.0 ([#5367])
- Nymnode entrypoint docker ([#5300])
-
-[#5546]: https://github.com/nymtech/nym/pull/5546
-[#5539]: https://github.com/nymtech/nym/pull/5539
-[#5535]: https://github.com/nymtech/nym/pull/5535
-[#5532]: https://github.com/nymtech/nym/pull/5532
-[#5523]: https://github.com/nymtech/nym/pull/5523
-[#5520]: https://github.com/nymtech/nym/pull/5520
-[#5519]: https://github.com/nymtech/nym/pull/5519
-[#5518]: https://github.com/nymtech/nym/pull/5518
-[#5512]: https://github.com/nymtech/nym/pull/5512
-[#5508]: https://github.com/nymtech/nym/pull/5508
-[#5502]: https://github.com/nymtech/nym/pull/5502
-[#5500]: https://github.com/nymtech/nym/pull/5500
-[#5498]: https://github.com/nymtech/nym/pull/5498
-[#5487]: https://github.com/nymtech/nym/pull/5487
-[#5482]: https://github.com/nymtech/nym/pull/5482
-[#5480]: https://github.com/nymtech/nym/pull/5480
-[#5478]: https://github.com/nymtech/nym/pull/5478
-[#5477]: https://github.com/nymtech/nym/pull/5477
-[#5472]: https://github.com/nymtech/nym/pull/5472
-[#5471]: https://github.com/nymtech/nym/pull/5471
-[#5470]: https://github.com/nymtech/nym/pull/5470
-[#5469]: https://github.com/nymtech/nym/pull/5469
-[#5467]: https://github.com/nymtech/nym/pull/5467
-[#5463]: https://github.com/nymtech/nym/pull/5463
-[#5460]: https://github.com/nymtech/nym/pull/5460
-[#5457]: https://github.com/nymtech/nym/pull/5457
-[#5456]: https://github.com/nymtech/nym/pull/5456
-[#5454]: https://github.com/nymtech/nym/pull/5454
-[#5453]: https://github.com/nymtech/nym/pull/5453
-[#5452]: https://github.com/nymtech/nym/pull/5452
-[#5451]: https://github.com/nymtech/nym/pull/5451
-[#5450]: https://github.com/nymtech/nym/pull/5450
-[#5448]: https://github.com/nymtech/nym/pull/5448
-[#5446]: https://github.com/nymtech/nym/pull/5446
-[#5444]: https://github.com/nymtech/nym/pull/5444
-[#5440]: https://github.com/nymtech/nym/pull/5440
-[#5439]: https://github.com/nymtech/nym/pull/5439
-[#5435]: https://github.com/nymtech/nym/pull/5435
-[#5425]: https://github.com/nymtech/nym/pull/5425
-[#5418]: https://github.com/nymtech/nym/pull/5418
-[#5416]: https://github.com/nymtech/nym/pull/5416
-[#5367]: https://github.com/nymtech/nym/pull/5367
-[#5300]: https://github.com/nymtech/nym/pull/5300
-
 ## [2025.3-ruta] (2025-02-10)

 - Push down forget me to client configs ([#5431])
@@ -258,7 +48,7 @@ Post 1.0.0 release, the changelog format is based on [Keep a Changelog](https://
 - Downgrade harmless log message from info to debug ([#5403])
 - Redirect from mixnode page to nodes page ([#5397])
 - chore :update version of chain watcher and validator rewarder ([#5394])
- bugfix: correctly handle ignore epoch roles flag ([#5390])
+- bugfix: correctly handle ingore epoch roles flag ([#5390])
 - bugfix: terminate mixnet socket listener on shutdown ([#5389])
 - feat: make client ignore dual mode nodes by default ([#5388])
 - Handle ecash network errors differently ([#5378])
@@ -279,7 +69,7 @@ Post 1.0.0 release, the changelog format is based on [Keep a Changelog](https://
 - Use expect in geodata test to give error message on failure ([#5314])
 - feature: periodically remove stale gateway messages ([#5312])
 - build(deps): bump the patch-updates group across 1 directory with 35 updates ([#5310])
- Add dependabot assigns for the root cargo ecosystem ([#5297])
+- Add dependabot assignes for the root cargo ecosystem ([#5297])
 - Move tun constants to network defaults ([#5286])
 - Include IPINFO_API_TOKEN in nightly CI ([#5285])
 - Nyx Chain Watcher ([#5274])
@@ -332,7 +122,7 @@ Post 1.0.0 release, the changelog format is based on [Keep a Changelog](https://

 ## [2025.1-reeses] (2025-01-15)

- Feature, Future/legacy alert ([#5346])
+- Feture/legacy alert ([#5346])
 - chore: readjusted --mode behaviour to fix the regression ([#5331])
 - chore: apply 1.84 linter suggestions ([#5330])
 - bugfix: make sure refresh data key matches bond info ([#5329])
@@ -412,7 +202,7 @@ Post 1.0.0 release, the changelog format is based on [Keep a Changelog](https://

 ## [2024.14-crunch-patched] (2024-12-17)

- Fixes an issue to allow previously registered clients to connect to latest nym-nodes
+- Fixes an issue to allow previously registred clients to connect to latest nym-nodes
 - Fixes compatibility issues between nym-nodes and older clients

 ## [2024.14-crunch] (2024-12-11)
@@ -420,7 +210,7 @@ Post 1.0.0 release, the changelog format is based on [Keep a Changelog](https://
 - Merge/release/2024.14-crunch ([#5242])
 - bugfix: added explicit openapi servers to account for route prefixes ([#5237])
 - Further config score adjustments ([#5225])
- feature: remove any filtering on node semver ([#5224])
+- feature: remve any filtering on node semver ([#5224])
 - Backport #5218 ([#5220])
 - Derive serialize for UserAgent (#5210) ([#5217])
 - dont consider legacy nodes for rewarded set selection ([#5215])
@@ -599,7 +389,7 @@ Post 1.0.0 release, the changelog format is based on [Keep a Changelog](https://
 - bugfix/feature: added NymApiClient method to get all skimmed nodes ([#5062])
 - Merge1/release/2024.13 magura ([#5061])
 - added hacky routes to return nymnodes alongside legacy nodes ([#5051])
- bugfix: mark migrated gateways as rewarded in the previous epoch in case they're, their, there in the rewarded set ([#5049])
+- bugfix: mark migrated gateways as rewarded in the previous epoch in case theyre in the rewarded set ([#5049])
 - bugfix: adjust runtime storage migration ([#5047])
 - bugfix: supersede 'cb13be27f8f61d9ae74d924e85d2e6787895eb14' by using… ([#5046])
 - bugfix: restore default http port for nym-api ([#5045])
@@ -660,7 +450,7 @@ Post 1.0.0 release, the changelog format is based on [Keep a Changelog](https://
 - Fix broken build after merge ([#4937])
 - bugfix: correctly paginate through 'search_tx' endpoint ([#4936])
 - Add more conversions for responses of authenticator messages ([#4929])
- Directory Services, Devices v2.1 ([#4903])
+- Directory Sevices v2.1 ([#4903])
 - Migrate Legacy Node (Frontend)  ([#4826])
 - Fix critical issues SI84 and SI85 from Cure53 ([#4758])

@@ -1044,7 +834,7 @@ Post 1.0.0 release, the changelog format is based on [Keep a Changelog](https://
 - Remove stale peers ([#4640])
 - Add generic wg private network routing ([#4636])
 - Feature/new node endpoints ([#4635])
- standardised ContractBuildInformation and added it to all contracts ([#4631])
+- standarised ContractBuildInformation and added it to all contracts ([#4631])
 - validate nym-node public ips on startup ([#4630])
 - Bump defguard wg ([#4625])
 - Fix cargo warnings ([#4624])
@@ -1665,7 +1455,7 @@ Post 1.0.0 release, the changelog format is based on [Keep a Changelog](https://
 - clean-up nym-api startup arguments/flags to use clap 3 and its macro-derived arguments ([#2772])
 - renamed all references to validator_api to nym_api
 - renamed all references to nymd to nyxd ([#2696])
- all-binaries: standardised argument names (note: old names should still be accepted) ([#2762]
+- all-binaries: standarised argument names (note: old names should still be accepted) ([#2762]

 ### Fixed

@@ -2170,7 +1960,7 @@ The release also include some additional work for distributed key generation in
 - Explorer UI tests missing data-testid [\#903](https://github.com/nymtech/nym/pull/903) ([tommyv1987](https://github.com/tommyv1987))
 - Fix up Nym-Wallet README.md [\#899](https://github.com/nymtech/nym/pull/899) ([tommyv1987](https://github.com/tommyv1987))
 - Feature/batch delegator rewarding [\#898](https://github.com/nymtech/nym/pull/898) ([jstuczyn](https://github.com/jstuczyn))
- Bug map nodemap [\#897](https://github.com/nymtech/nym/pull/897) ([Aid19801](https://github.com/Aid19801))
+- Bug mapp nodemap [\#897](https://github.com/nymtech/nym/pull/897) ([Aid19801](https://github.com/Aid19801))
 - Bug fix/macos keyboard shortcuts [\#896](https://github.com/nymtech/nym/pull/896) ([fmtabbara](https://github.com/fmtabbara))
 - Add a Mobile Nav to the Network Explorer [\#895](https://github.com/nymtech/nym/pull/895) ([Aid19801](https://github.com/Aid19801))
 - Only use ts-rs in tests [\#894](https://github.com/nymtech/nym/pull/894) ([durch](https://github.com/durch))
@@ -66,6 +66,7 @@ members = [
    "common/nym-id",
    "common/nym-metrics",
    "common/nym_offline_compact_ecash",
+    "common/nymcoconut",
    "common/nymsphinx",
    "common/nymsphinx/acknowledgements",
    "common/nymsphinx/addressing",
@@ -98,9 +99,9 @@ members = [
    "common/wireguard",
    "common/wireguard-types",
    "documentation/autodoc",
-    # "explorer-api",
-    # "explorer-api/explorer-api-requests",
-    # "explorer-api/explorer-client",
+    "explorer-api",
+    "explorer-api/explorer-api-requests",
+    "explorer-api/explorer-client",
    "gateway",
    "integrations/bity",
    "nym-api",
@@ -137,7 +138,7 @@ members = [
    "tools/internal/testnet-manager",
    "tools/internal/testnet-manager",
    "tools/internal/testnet-manager/dkg-bypass-contract",
-    "tools/internal/testnet-manager/dkg-bypass-contract", "tools/internal/validator-status-check",
+    "tools/internal/testnet-manager/dkg-bypass-contract",
    "tools/nym-cli",
    "tools/nym-id-cli",
    "tools/nym-nr-query",
@@ -153,6 +154,7 @@ members = [
 default-members = [
    "clients/native",
    "clients/socks5",
+    "explorer-api",
    "nym-api",
    "nym-credential-proxy/nym-credential-proxy",
    "nym-node",
@@ -190,10 +192,10 @@ aes = "0.8.1"
 aes-gcm = "0.10.1"
 aes-gcm-siv = "0.11.1"
 ammonia = "4"
-anyhow = "1.0.97"
+anyhow = "1.0.95"
 arc-swap = "1.7.1"
 argon2 = "0.5.0"
-async-trait = "0.1.88"
+async-trait = "0.1.86"
 axum = "0.7.5"
 axum-client-ip = "0.6.1"
 axum-extra = "0.9.4"
@@ -204,24 +206,24 @@ bincode = "1.3.3"
 bip39 = { version = "2.0.0", features = ["zeroize"] }
 bit-vec = "0.7.0"                                     # can we unify those?
 bitvec = "1.0.0"
-blake3 = "1.6.1"
+blake3 = "1.5.5"
 bloomfilter = "1.0.14"
 bs58 = "0.5.1"
 bytecodec = "0.4.15"
-bytes = "1.10.1"
+bytes = "1.7.2"
 cargo_metadata = "0.18.1"
-celes = "2.6.0"
+celes = "2.5.0"
 cfg-if = "1.0.0"
 chacha20 = "0.9.0"
 chacha20poly1305 = "0.10.1"
-chrono = "0.4.40"
+chrono = "0.4.39"
 cipher = "0.4.3"
-clap = "4.5.32"
+clap = "4.5.30"
 clap_complete = "4.5"
 clap_complete_fig = "4.5"
 colored = "2.2"
 comfy-table = "7.1.4"
-console = "0.15.11"
+console = "0.15.10"
 console-subscriber = "0.1.1"
 console_error_panic_hook = "0.1"
 const-str = "0.5.6"
@@ -240,30 +242,29 @@ doc-comment = "0.3"
 dotenvy = "0.15.6"
 ecdsa = "0.16"
 ed25519-dalek = "2.1"
-encoding_rs = "0.8.35"
-env_logger = "0.11.7"
+env_logger = "0.11.6"
 envy = "0.4"
 etherparse = "0.13.0"
 eyre = "0.6.9"
 fastrand = "2.1.1"
-flate2 = "1.1.0"
+flate2 = "1.0.35"
 futures = "0.3.31"
 futures-util = "0.3"
 generic-array = "0.14.7"
 getrandom = "0.2.10"
-getset = "0.1.5"
+getset = "0.1.4"
 handlebars = "3.5.5"
 headers = "0.4.0"
 hex = "0.4.3"
 hex-literal = "0.3.3"
-hickory-resolver = "0.24.4"
+hickory-resolver = "0.24.3"
 hkdf = "0.12.3"
 hmac = "0.12.1"
 http = "1"
 http-body-util = "0.1"
 httpcodec = "0.2.3"
 human-repr = "1.1.0"
-humantime = "2.2.0"
+humantime = "2.1.0"
 humantime-serde = "1.1.1"
 hyper = "1.6.0"
 hyper-util = "0.1"
@@ -272,7 +273,7 @@ inquire = "0.6.2"
 ip_network = "0.4.1"
 ipnetwork = "0.20"
 isocountry = "0.3.2"
-itertools = "0.14.0"
+itertools = "0.13.0"
 k256 = "0.13"
 lazy_static = "1.5.0"
 ledger-transport = "0.10.0"
@@ -284,7 +285,7 @@ moka = { version = "0.12", features = ["future"] }
 nix = "0.27.1"
 notify = "5.1.0"
 okapi = "0.7.0"
-once_cell = "1.21.1"
+once_cell = "1.20.3"
 opentelemetry = "0.19.0"
 opentelemetry-jaeger = "0.18.0"
 parking_lot = "0.12.3"
@@ -307,21 +308,21 @@ reqwest = { version = "0.12.4", default-features = false }
 rocket = "0.5.0"
 rocket_cors = "0.6.0"
 rocket_okapi = "0.8.0"
-rs_merkle = "1.5.0"
+rs_merkle = "1.4.2"
 safer-ffi = "0.1.13"
-schemars = "0.8.22"
-semver = "1.0.26"
-serde = "1.0.219"
-serde_bytes = "0.11.17"
+schemars = "0.8.21"
+semver = "1.0.25"
+serde = "1.0.217"
+serde_bytes = "0.11.15"
 serde_derive = "1.0"
-serde_json = "1.0.140"
+serde_json = "1.0.138"
 serde_json_path = "0.7.2"
 serde_repr = "0.1"
 serde_with = "3.9.0"
 serde_yaml = "0.9.25"
 sha2 = "0.10.8"
 si-scale = "0.2.3"
-sphinx-packet = "=0.3.2"
+sphinx-packet = "0.1.1"
 sqlx = "0.7.4"
 strum = "0.26"
 strum_macros = "0.26"
@@ -329,17 +330,17 @@ subtle-encoding = "0.5"
 syn = "1"
 sysinfo = "0.33.0"
 tap = "1.0.1"
-tar = "0.4.44"
-tempfile = "3.19"
+tar = "0.4.43"
+tempfile = "3.15"
 thiserror = "2.0"
-time = "0.3.39"
-tokio = "1.44"
+time = "0.3.37"
+tokio = "1.43"
 tokio-postgres = "0.7"
 tokio-stream = "0.1.17"
 tokio-test = "0.4.4"
 tokio-tun = "0.11.5"
 tokio-tungstenite = { version = "0.20.1" }
-tokio-util = "0.7.14"
+tokio-util = "0.7.13"
 toml = "0.8.20"
 tower = "0.5.2"
 tower-http = "0.5.2"
@@ -361,7 +362,7 @@ vergen = { version = "=8.3.1", default-features = false }
 walkdir = "2"
 wasm-bindgen-test = "0.3.49"
 x25519-dalek = "2.0.0"
-zeroize = "1.8.1"
+zeroize = "1.6.0"

 prometheus = { version = "0.13.0" }

@@ -369,9 +370,9 @@ prometheus = { version = "0.13.0" }
 # unfortunately until https://github.com/zkcrypto/bls12_381/issues/10 is resolved, we have to rely on the fork
 # as we need to be able to serialize Gt so that we could create the lookup table for baby-step-giant-step algorithm
 # plus to make our live easier we need serde support from https://github.com/zkcrypto/bls12_381/pull/125
-bls12_381 = { git = "https://github.com/jstuczyn/bls12_381", default-features = false, branch = "temp/experimental-serdect-updated" }
+bls12_381 = { git = "https://github.com/jstuczyn/bls12_381", default-features = false, branch = "temp/experimental-serdect" }
 group = { version = "0.13.0", default-features = false }
-ff = { version = "0.13.1", default-features = false }
+ff = { version = "0.13.0", default-features = false }
 subtle = "2.5.0"

 # cosmwasm-related
@@ -402,7 +403,7 @@ prost = { version = "0.13", default-features = false }
 gloo-utils = "0.2.0"
 gloo-net = "0.6.0"

-indexed_db_futures = "0.6.1"
+indexed_db_futures = "0.6.0"
 js-sys = "0.3.76"
 serde-wasm-bindgen = "0.6.5"
 tsify = "0.4.5"
@@ -437,13 +438,3 @@ opt-level = 'z'
 [profile.release.package.mix-fetch-wasm]
 # lto = true
 opt-level = 'z'
-
-[workspace.lints.clippy]
-unwrap_used = "deny"
-expect_used = "deny"
-todo = "deny"
-dbg_macro = "deny"
-exit = "deny"
-panic = "deny"
-unimplemented = "deny"
-unreachable = "deny"
@@ -67,13 +67,3 @@ As a general approach, licensing is as follows this pattern:
 - documentation is Apache 2.0 or CC0-1.0

 Nym Node Operators and Validators Terms and Conditions can be found [here](https://nym.com/operators-validators-terms).
-
-## Getting Started
-
-```bash
-yarn install
-```
-
-```bash
-yarn build
-```
@@ -1,6 +1,6 @@
 [package]
 name = "nym-client"
-version = "1.1.51"
+version = "1.1.49"
 authors = ["Dave Hrycyszyn <futurechimp@users.noreply.github.com>", "Jędrzej Stuczyński <andrew@nymtech.net>"]
 description = "Implementation of the Nym Client"
 edition = "2021"
@@ -1,6 +1,6 @@
 [package]
 name = "nym-socks5-client"
-version = "1.1.51"
+version = "1.1.49"
 authors = ["Dave Hrycyszyn <futurechimp@users.noreply.github.com>"]
 description = "A SOCKS5 localhost proxy that converts incoming messages to Sphinx and sends them to a Nym address"
 edition = "2021"
@@ -1,3 +1,2 @@
 allow-unwrap-in-tests = true
 allow-expect-in-tests = true
-allow-panic-in-tests = true
@@ -6,15 +6,14 @@ pub mod v1;
 pub mod v2;
 pub mod v3;
 pub mod v4;
-pub mod v5;

 mod error;
 mod util;

 pub use error::Error;
-pub use v5 as latest;
+pub use v4 as latest;

-pub const CURRENT_VERSION: u8 = 5;
+pub const CURRENT_VERSION: u8 = 4;

 fn make_bincode_serializer() -> impl bincode::Options {
    use bincode::Options;
@@ -8,8 +8,8 @@ use nym_sphinx::addressing::clients::Recipient;
 use nym_wireguard_types::PeerPublicKey;

 use crate::{
-    v1, v2, v3, v4,
-    v5::{self, registration::IpPair},
+    v1, v2, v3,
+    v4::{self, registration::IpPair},
    Error,
 };

@@ -19,7 +19,6 @@ pub enum AuthenticatorVersion {
    V2,
    V3,
    V4,
-    V5,
    UNKNOWN,
 }

@@ -35,8 +34,6 @@ impl From<Protocol> for AuthenticatorVersion {
            AuthenticatorVersion::V3
        } else if value.version == v4::VERSION {
            AuthenticatorVersion::V4
-        } else if value.version == v5::VERSION {
-            AuthenticatorVersion::V5
        } else {
            AuthenticatorVersion::UNKNOWN
        }
@@ -71,12 +68,6 @@ impl InitMessage for v4::registration::InitMessage {
    }
 }

-impl InitMessage for v5::registration::InitMessage {
-    fn pub_key(&self) -> PeerPublicKey {
-        self.pub_key
-    }
-}
-
 pub trait FinalMessage {
    fn pub_key(&self) -> PeerPublicKey;
    fn verify(&self, private_key: &PrivateKey, nonce: u64) -> Result<(), Error>;
@@ -147,24 +138,6 @@ impl FinalMessage for v4::registration::FinalMessage {
        self.gateway_client.verify(private_key, nonce)
    }

-    fn private_ips(&self) -> IpPair {
-        self.gateway_client.private_ips.into()
-    }
-
-    fn credential(&self) -> Option<CredentialSpendingData> {
-        self.credential.clone()
-    }
-}
-
-impl FinalMessage for v5::registration::FinalMessage {
-    fn pub_key(&self) -> PeerPublicKey {
-        self.gateway_client.pub_key
-    }
-
-    fn verify(&self, private_key: &PrivateKey, nonce: u64) -> Result<(), Error> {
-        self.gateway_client.verify(private_key, nonce)
-    }
-
    fn private_ips(&self) -> IpPair {
        self.gateway_client.private_ips
    }
@@ -209,39 +182,29 @@ impl TopUpMessage for v4::topup::TopUpMessage {
    }
 }

-impl TopUpMessage for v5::topup::TopUpMessage {
-    fn pub_key(&self) -> PeerPublicKey {
-        self.pub_key
-    }
-
-    fn credential(&self) -> CredentialSpendingData {
-        self.credential.clone()
-    }
-}
-
 pub enum AuthenticatorRequest {
    Initial {
        msg: Box<dyn InitMessage + Send + Sync + 'static>,
        protocol: Protocol,
-        reply_to: Option<Recipient>,
+        reply_to: Recipient,
        request_id: u64,
    },
    Final {
        msg: Box<dyn FinalMessage + Send + Sync + 'static>,
        protocol: Protocol,
-        reply_to: Option<Recipient>,
+        reply_to: Recipient,
        request_id: u64,
    },
    QueryBandwidth {
        msg: Box<dyn QueryBandwidthMessage + Send + Sync + 'static>,
        protocol: Protocol,
-        reply_to: Option<Recipient>,
+        reply_to: Recipient,
        request_id: u64,
    },
    TopUpBandwidth {
        msg: Box<dyn TopUpMessage + Send + Sync + 'static>,
        protocol: Protocol,
-        reply_to: Option<Recipient>,
+        reply_to: Recipient,
        request_id: u64,
    },
 }
@@ -255,7 +218,7 @@ impl From<v1::request::AuthenticatorRequest> for AuthenticatorRequest {
                    version: value.version,
                    service_provider_type: ServiceProviderType::Authenticator,
                },
-                reply_to: Some(value.reply_to),
+                reply_to: value.reply_to,
                request_id: value.request_id,
            },
            v1::request::AuthenticatorRequestData::Final(gateway_client) => Self::Final {
@@ -264,7 +227,7 @@ impl From<v1::request::AuthenticatorRequest> for AuthenticatorRequest {
                    version: value.version,
                    service_provider_type: ServiceProviderType::Authenticator,
                },
-                reply_to: Some(value.reply_to),
+                reply_to: value.reply_to,
                request_id: value.request_id,
            },
            v1::request::AuthenticatorRequestData::QueryBandwidth(peer_public_key) => {
@@ -274,7 +237,7 @@ impl From<v1::request::AuthenticatorRequest> for AuthenticatorRequest {
                        version: value.version,
                        service_provider_type: ServiceProviderType::Authenticator,
                    },
-                    reply_to: Some(value.reply_to),
+                    reply_to: value.reply_to,
                    request_id: value.request_id,
                }
            }
@@ -288,20 +251,20 @@ impl From<v2::request::AuthenticatorRequest> for AuthenticatorRequest {
            v2::request::AuthenticatorRequestData::Initial(init_message) => Self::Initial {
                msg: Box::new(init_message),
                protocol: value.protocol,
-                reply_to: Some(value.reply_to),
+                reply_to: value.reply_to,
                request_id: value.request_id,
            },
            v2::request::AuthenticatorRequestData::Final(final_message) => Self::Final {
                msg: final_message,
                protocol: value.protocol,
-                reply_to: Some(value.reply_to),
+                reply_to: value.reply_to,
                request_id: value.request_id,
            },
            v2::request::AuthenticatorRequestData::QueryBandwidth(peer_public_key) => {
                Self::QueryBandwidth {
                    msg: Box::new(peer_public_key),
                    protocol: value.protocol,
-                    reply_to: Some(value.reply_to),
+                    reply_to: value.reply_to,
                    request_id: value.request_id,
                }
            }
@@ -315,20 +278,20 @@ impl From<v3::request::AuthenticatorRequest> for AuthenticatorRequest {
            v3::request::AuthenticatorRequestData::Initial(init_message) => Self::Initial {
                msg: Box::new(init_message),
                protocol: value.protocol,
-                reply_to: Some(value.reply_to),
+                reply_to: value.reply_to,
                request_id: value.request_id,
            },
            v3::request::AuthenticatorRequestData::Final(final_message) => Self::Final {
                msg: final_message,
                protocol: value.protocol,
-                reply_to: Some(value.reply_to),
+                reply_to: value.reply_to,
                request_id: value.request_id,
            },
            v3::request::AuthenticatorRequestData::QueryBandwidth(peer_public_key) => {
                Self::QueryBandwidth {
                    msg: Box::new(peer_public_key),
                    protocol: value.protocol,
-                    reply_to: Some(value.reply_to),
+                    reply_to: value.reply_to,
                    request_id: value.request_id,
                }
            }
@@ -336,7 +299,7 @@ impl From<v3::request::AuthenticatorRequest> for AuthenticatorRequest {
                Self::TopUpBandwidth {
                    msg: top_up_message,
                    protocol: value.protocol,
-                    reply_to: Some(value.reply_to),
+                    reply_to: value.reply_to,
                    request_id: value.request_id,
                }
            }
@@ -350,20 +313,20 @@ impl From<v4::request::AuthenticatorRequest> for AuthenticatorRequest {
            v4::request::AuthenticatorRequestData::Initial(init_message) => Self::Initial {
                msg: Box::new(init_message),
                protocol: value.protocol,
-                reply_to: Some(value.reply_to),
+                reply_to: value.reply_to,
                request_id: value.request_id,
            },
            v4::request::AuthenticatorRequestData::Final(final_message) => Self::Final {
                msg: final_message,
                protocol: value.protocol,
-                reply_to: Some(value.reply_to),
+                reply_to: value.reply_to,
                request_id: value.request_id,
            },
            v4::request::AuthenticatorRequestData::QueryBandwidth(peer_public_key) => {
                Self::QueryBandwidth {
                    msg: Box::new(peer_public_key),
                    protocol: value.protocol,
-                    reply_to: Some(value.reply_to),
+                    reply_to: value.reply_to,
                    request_id: value.request_id,
                }
            }
@@ -371,42 +334,7 @@ impl From<v4::request::AuthenticatorRequest> for AuthenticatorRequest {
                Self::TopUpBandwidth {
                    msg: top_up_message,
                    protocol: value.protocol,
-                    reply_to: Some(value.reply_to),
-                    request_id: value.request_id,
-                }
-            }
-        }
-    }
-}
-
-impl From<v5::request::AuthenticatorRequest> for AuthenticatorRequest {
-    fn from(value: v5::request::AuthenticatorRequest) -> Self {
-        match value.data {
-            v5::request::AuthenticatorRequestData::Initial(init_message) => Self::Initial {
-                msg: Box::new(init_message),
-                protocol: value.protocol,
-                reply_to: None,
-                request_id: value.request_id,
-            },
-            v5::request::AuthenticatorRequestData::Final(final_message) => Self::Final {
-                msg: final_message,
-                protocol: value.protocol,
-                reply_to: None,
-                request_id: value.request_id,
-            },
-            v5::request::AuthenticatorRequestData::QueryBandwidth(peer_public_key) => {
-                Self::QueryBandwidth {
-                    msg: Box::new(peer_public_key),
-                    protocol: value.protocol,
-                    reply_to: None,
-                    request_id: value.request_id,
-                }
-            }
-            v5::request::AuthenticatorRequestData::TopUpBandwidth(top_up_message) => {
-                Self::TopUpBandwidth {
-                    msg: top_up_message,
-                    protocol: value.protocol,
-                    reply_to: None,
+                    reply_to: value.reply_to,
                    request_id: value.request_id,
                }
            }
@@ -1,478 +0,0 @@
-// Copyright 2024 - Nym Technologies SA <contact@nymtech.net>
-// SPDX-License-Identifier: Apache-2.0
-
-use nym_service_provider_requests_common::{Protocol, ServiceProviderType};
-
-use crate::{v4, v5};
-
-impl From<v4::request::AuthenticatorRequest> for v5::request::AuthenticatorRequest {
-    fn from(authenticator_request: v4::request::AuthenticatorRequest) -> Self {
-        Self {
-            protocol: Protocol {
-                version: 5,
-                service_provider_type: ServiceProviderType::Authenticator,
-            },
-            data: authenticator_request.data.into(),
-            request_id: authenticator_request.request_id,
-        }
-    }
-}
-
-impl From<v4::request::AuthenticatorRequestData> for v5::request::AuthenticatorRequestData {
-    fn from(authenticator_request_data: v4::request::AuthenticatorRequestData) -> Self {
-        match authenticator_request_data {
-            v4::request::AuthenticatorRequestData::Initial(init_msg) => {
-                v5::request::AuthenticatorRequestData::Initial(init_msg.into())
-            }
-            v4::request::AuthenticatorRequestData::Final(final_msg) => {
-                v5::request::AuthenticatorRequestData::Final(Box::new((*final_msg).into()))
-            }
-            v4::request::AuthenticatorRequestData::QueryBandwidth(pub_key) => {
-                v5::request::AuthenticatorRequestData::QueryBandwidth(pub_key)
-            }
-            v4::request::AuthenticatorRequestData::TopUpBandwidth(top_up_message) => {
-                v5::request::AuthenticatorRequestData::TopUpBandwidth(top_up_message.into())
-            }
-        }
-    }
-}
-
-impl From<v4::registration::InitMessage> for v5::registration::InitMessage {
-    fn from(init_msg: v4::registration::InitMessage) -> Self {
-        Self {
-            pub_key: init_msg.pub_key,
-        }
-    }
-}
-
-impl From<v4::registration::FinalMessage> for v5::registration::FinalMessage {
-    fn from(final_msg: v4::registration::FinalMessage) -> Self {
-        Self {
-            gateway_client: final_msg.gateway_client.into(),
-            credential: final_msg.credential,
-        }
-    }
-}
-
-impl From<v4::registration::GatewayClient> for v5::registration::GatewayClient {
-    fn from(gateway_client: v4::registration::GatewayClient) -> Self {
-        Self {
-            pub_key: gateway_client.pub_key,
-            private_ips: gateway_client.private_ips.into(),
-            mac: gateway_client.mac.into(),
-        }
-    }
-}
-
-impl From<v5::registration::GatewayClient> for v4::registration::GatewayClient {
-    fn from(gateway_client: v5::registration::GatewayClient) -> Self {
-        Self {
-            pub_key: gateway_client.pub_key,
-            private_ips: gateway_client.private_ips.into(),
-            mac: gateway_client.mac.into(),
-        }
-    }
-}
-
-impl From<v4::registration::ClientMac> for v5::registration::ClientMac {
-    fn from(client_mac: v4::registration::ClientMac) -> Self {
-        Self::new((*client_mac).clone())
-    }
-}
-
-impl From<v5::registration::ClientMac> for v4::registration::ClientMac {
-    fn from(client_mac: v5::registration::ClientMac) -> Self {
-        Self::new((*client_mac).clone())
-    }
-}
-
-impl From<Box<v4::topup::TopUpMessage>> for Box<v5::topup::TopUpMessage> {
-    fn from(top_up_message: Box<v4::topup::TopUpMessage>) -> Self {
-        Box::new(v5::topup::TopUpMessage {
-            pub_key: top_up_message.pub_key,
-            credential: top_up_message.credential,
-        })
-    }
-}
-
-impl From<v4::response::AuthenticatorResponse> for v5::response::AuthenticatorResponse {
-    fn from(value: v4::response::AuthenticatorResponse) -> Self {
-        Self {
-            protocol: Protocol {
-                version: 5,
-                service_provider_type: value.protocol.service_provider_type,
-            },
-            data: value.data.into(),
-        }
-    }
-}
-
-impl From<v4::response::AuthenticatorResponseData> for v5::response::AuthenticatorResponseData {
-    fn from(authenticator_response_data: v4::response::AuthenticatorResponseData) -> Self {
-        match authenticator_response_data {
-            v4::response::AuthenticatorResponseData::PendingRegistration(pending_response) => {
-                v5::response::AuthenticatorResponseData::PendingRegistration(
-                    pending_response.into(),
-                )
-            }
-            v4::response::AuthenticatorResponseData::Registered(registered_response) => {
-                v5::response::AuthenticatorResponseData::Registered(registered_response.into())
-            }
-            v4::response::AuthenticatorResponseData::RemainingBandwidth(
-                remaining_bandwidth_response,
-            ) => v5::response::AuthenticatorResponseData::RemainingBandwidth(
-                remaining_bandwidth_response.into(),
-            ),
-            v4::response::AuthenticatorResponseData::TopUpBandwidth(top_up_response) => {
-                v5::response::AuthenticatorResponseData::TopUpBandwidth(top_up_response.into())
-            }
-        }
-    }
-}
-
-impl From<v4::response::RegisteredResponse> for v5::response::RegisteredResponse {
-    fn from(value: v4::response::RegisteredResponse) -> Self {
-        Self {
-            request_id: value.request_id,
-            reply: value.reply.into(),
-        }
-    }
-}
-
-impl From<v4::response::PendingRegistrationResponse> for v5::response::PendingRegistrationResponse {
-    fn from(value: v4::response::PendingRegistrationResponse) -> Self {
-        Self {
-            request_id: value.request_id,
-            reply: value.reply.into(),
-        }
-    }
-}
-
-impl From<v4::registration::RegistrationData> for v5::registration::RegistrationData {
-    fn from(value: v4::registration::RegistrationData) -> Self {
-        Self {
-            nonce: value.nonce,
-            gateway_data: value.gateway_data.into(),
-            wg_port: value.wg_port,
-        }
-    }
-}
-
-impl From<v5::registration::RegistrationData> for v4::registration::RegistrationData {
-    fn from(value: v5::registration::RegistrationData) -> Self {
-        Self {
-            nonce: value.nonce,
-            gateway_data: value.gateway_data.into(),
-            wg_port: value.wg_port,
-        }
-    }
-}
-
-impl From<v4::response::RemainingBandwidthResponse> for v5::response::RemainingBandwidthResponse {
-    fn from(value: v4::response::RemainingBandwidthResponse) -> Self {
-        Self {
-            request_id: value.request_id,
-            reply: value.reply.map(Into::into),
-        }
-    }
-}
-
-impl From<v4::response::TopUpBandwidthResponse> for v5::response::TopUpBandwidthResponse {
-    fn from(value: v4::response::TopUpBandwidthResponse) -> Self {
-        Self {
-            request_id: value.request_id,
-            reply: value.reply.into(),
-        }
-    }
-}
-
-impl From<v4::registration::RegistredData> for v5::registration::RegistredData {
-    fn from(value: v4::registration::RegistredData) -> Self {
-        Self {
-            pub_key: value.pub_key,
-            private_ips: value.private_ips.into(),
-            wg_port: value.wg_port,
-        }
-    }
-}
-
-impl From<v4::registration::RemainingBandwidthData> for v5::registration::RemainingBandwidthData {
-    fn from(value: v4::registration::RemainingBandwidthData) -> Self {
-        Self {
-            available_bandwidth: value.available_bandwidth,
-        }
-    }
-}
-
-impl From<v4::registration::IpPair> for v5::registration::IpPair {
-    fn from(value: v4::registration::IpPair) -> Self {
-        Self {
-            ipv4: value.ipv4,
-            ipv6: value.ipv6,
-        }
-    }
-}
-
-impl From<v5::registration::IpPair> for v4::registration::IpPair {
-    fn from(value: v5::registration::IpPair) -> Self {
-        Self {
-            ipv4: value.ipv4,
-            ipv6: value.ipv6,
-        }
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use std::{
-        net::{Ipv4Addr, Ipv6Addr},
-        str::FromStr,
-    };
-
-    use nym_credentials_interface::CredentialSpendingData;
-    use nym_crypto::asymmetric::encryption::PrivateKey;
-    use nym_sphinx::addressing::Recipient;
-    use nym_wireguard_types::PeerPublicKey;
-    use x25519_dalek::PublicKey;
-
-    use super::*;
-    use crate::{
-        util::tests::{CREDENTIAL_BYTES, RECIPIENT},
-        v4,
-    };
-
-    #[test]
-    fn upgrade_initial_req() {
-        let pub_key = PeerPublicKey::new(PublicKey::from([0; 32]));
-        let reply_to = Recipient::try_from_base58_string(RECIPIENT).unwrap();
-
-        let (msg, _) = v4::request::AuthenticatorRequest::new_initial_request(
-            v4::registration::InitMessage::new(pub_key),
-            reply_to,
-        );
-        let upgraded_msg = v5::request::AuthenticatorRequest::from(msg);
-
-        assert_eq!(
-            upgraded_msg.protocol,
-            Protocol {
-                version: 5,
-                service_provider_type: ServiceProviderType::Authenticator
-            }
-        );
-        assert_eq!(
-            upgraded_msg.data,
-            v5::request::AuthenticatorRequestData::Initial(v5::registration::InitMessage {
-                pub_key
-            })
-        );
-    }
-
-    #[test]
-    fn upgrade_final_req() {
-        let mut rng = rand::thread_rng();
-
-        let local_secret = PrivateKey::new(&mut rng);
-        let remote_secret = x25519_dalek::StaticSecret::random_from_rng(&mut rng);
-        let ipv4 = Ipv4Addr::from_str("10.10.10.10").unwrap();
-        let ipv6 = Ipv6Addr::from_str("fc01::a0a").unwrap();
-        let ips = v4::registration::IpPair::new(ipv4, ipv6);
-        let nonce = 42;
-        let gateway_client = v4::registration::GatewayClient::new(
-            &local_secret,
-            (&remote_secret).into(),
-            ips,
-            nonce,
-        );
-        let credential = Some(CredentialSpendingData::try_from_bytes(&CREDENTIAL_BYTES).unwrap());
-        let final_message = v4::registration::FinalMessage {
-            gateway_client: gateway_client.clone(),
-            credential: credential.clone(),
-        };
-        let reply_to = Recipient::try_from_base58_string(RECIPIENT).unwrap();
-
-        let (msg, _) =
-            v4::request::AuthenticatorRequest::new_final_request(final_message, reply_to);
-        let upgraded_msg = v5::request::AuthenticatorRequest::from(msg);
-
-        assert_eq!(
-            upgraded_msg.protocol,
-            Protocol {
-                version: 5,
-                service_provider_type: ServiceProviderType::Authenticator
-            }
-        );
-        assert_eq!(
-            upgraded_msg.data,
-            v5::request::AuthenticatorRequestData::Final(Box::new(
-                v5::registration::FinalMessage {
-                    gateway_client: v5::registration::GatewayClient::new(
-                        &local_secret,
-                        (&remote_secret).into(),
-                        v5::registration::IpPair::new(ipv4, ipv6),
-                        nonce
-                    ),
-                    credential
-                }
-            ))
-        );
-    }
-
-    #[test]
-    fn upgrade_query_req() {
-        let pub_key = PeerPublicKey::new(PublicKey::from([0; 32]));
-        let reply_to = Recipient::try_from_base58_string(RECIPIENT).unwrap();
-
-        let (msg, _) = v4::request::AuthenticatorRequest::new_query_request(pub_key, reply_to);
-        let upgraded_msg = v5::request::AuthenticatorRequest::from(msg);
-
-        assert_eq!(
-            upgraded_msg.protocol,
-            Protocol {
-                version: 5,
-                service_provider_type: ServiceProviderType::Authenticator
-            }
-        );
-        assert_eq!(
-            upgraded_msg.data,
-            v5::request::AuthenticatorRequestData::QueryBandwidth(pub_key)
-        );
-    }
-
-    #[test]
-    fn upgrade_pending_reg_resp() {
-        let mut rng = rand::thread_rng();
-
-        let local_secret = PrivateKey::new(&mut rng);
-        let remote_secret = x25519_dalek::StaticSecret::random_from_rng(&mut rng);
-        let ipv4 = Ipv4Addr::from_str("10.10.10.10").unwrap();
-        let ipv6 = Ipv6Addr::from_str("fc01::a0a").unwrap();
-        let ips = v4::registration::IpPair::new(ipv4, ipv6);
-        let nonce = 42;
-        let wg_port = 51822;
-        let gateway_data = v4::registration::GatewayClient::new(
-            &local_secret,
-            (&remote_secret).into(),
-            ips,
-            nonce,
-        );
-        let registration_data = v4::registration::RegistrationData {
-            nonce,
-            gateway_data,
-            wg_port,
-        };
-        let request_id = 123;
-        let reply_to = Recipient::try_from_base58_string(RECIPIENT).unwrap();
-
-        let msg = v4::response::AuthenticatorResponse::new_pending_registration_success(
-            registration_data,
-            request_id,
-            reply_to,
-        );
-        let upgraded_msg = v5::response::AuthenticatorResponse::from(msg);
-
-        assert_eq!(
-            upgraded_msg.protocol,
-            Protocol {
-                version: 5,
-                service_provider_type: ServiceProviderType::Authenticator
-            }
-        );
-
-        assert_eq!(
-            upgraded_msg.data,
-            v5::response::AuthenticatorResponseData::PendingRegistration(
-                v5::response::PendingRegistrationResponse {
-                    request_id,
-                    reply: v5::registration::RegistrationData {
-                        nonce,
-                        gateway_data: v5::registration::GatewayClient::new(
-                            &local_secret,
-                            (&remote_secret).into(),
-                            v5::registration::IpPair::new(ipv4, ipv6),
-                            nonce
-                        ),
-                        wg_port
-                    }
-                }
-            )
-        );
-    }
-
-    #[test]
-    fn upgrade_registered_resp() {
-        let pub_key = PeerPublicKey::new(PublicKey::from([0; 32]));
-        let ipv4 = Ipv4Addr::from_str("10.1.10.10").unwrap();
-        let ipv6 = Ipv6Addr::from_str("fc01::a0a").unwrap();
-        let private_ips = v4::registration::IpPair::new(ipv4, ipv6);
-        let wg_port = 51822;
-        let registred_data = v4::registration::RegistredData {
-            pub_key,
-            private_ips,
-            wg_port,
-        };
-        let request_id = 123;
-        let reply_to = Recipient::try_from_base58_string(RECIPIENT).unwrap();
-
-        let msg = v4::response::AuthenticatorResponse::new_registered(
-            registred_data,
-            reply_to,
-            request_id,
-        );
-        let upgraded_msg = v5::response::AuthenticatorResponse::from(msg);
-
-        assert_eq!(
-            upgraded_msg.protocol,
-            Protocol {
-                version: 5,
-                service_provider_type: ServiceProviderType::Authenticator
-            }
-        );
-        assert_eq!(
-            upgraded_msg.data,
-            v5::response::AuthenticatorResponseData::Registered(v5::response::RegisteredResponse {
-                request_id,
-                reply: v5::registration::RegistredData {
-                    wg_port,
-                    pub_key,
-                    private_ips: v5::registration::IpPair::new(ipv4, ipv6)
-                }
-            })
-        );
-    }
-
-    #[test]
-    fn upgrade_remaining_bandwidth_resp() {
-        let available_bandwidth = 42;
-        let remaining_bandwidth_data = Some(v4::registration::RemainingBandwidthData {
-            available_bandwidth,
-        });
-        let request_id = 123;
-        let reply_to = Recipient::try_from_base58_string(RECIPIENT).unwrap();
-
-        let msg = v4::response::AuthenticatorResponse::new_remaining_bandwidth(
-            remaining_bandwidth_data,
-            reply_to,
-            request_id,
-        );
-        let upgraded_msg = v5::response::AuthenticatorResponse::from(msg);
-
-        assert_eq!(
-            upgraded_msg.protocol,
-            Protocol {
-                version: 5,
-                service_provider_type: ServiceProviderType::Authenticator
-            }
-        );
-        assert_eq!(
-            upgraded_msg.data,
-            v5::response::AuthenticatorResponseData::RemainingBandwidth(
-                v5::response::RemainingBandwidthResponse {
-                    request_id,
-                    reply: Some(v5::registration::RemainingBandwidthData {
-                        available_bandwidth,
-                    })
-                }
-            )
-        );
-    }
-}
@@ -1,10 +0,0 @@
-// Copyright 2024 - Nym Technologies SA <contact@nymtech.net>
-// SPDX-License-Identifier: Apache-2.0
-
-pub mod conversion;
-pub mod registration;
-pub mod request;
-pub mod response;
-pub mod topup;
-
-pub const VERSION: u8 = 5;
@@ -1,287 +0,0 @@
-// -2024 - Nym Technologies SA <contact@nymtech.net>
-// SPDX-License-Identifier: Apache-2.0
-
-use crate::error::Error;
-use base64::{engine::general_purpose, Engine};
-use nym_credentials_interface::CredentialSpendingData;
-use nym_network_defaults::constants::{WG_TUN_DEVICE_IP_ADDRESS_V4, WG_TUN_DEVICE_IP_ADDRESS_V6};
-use nym_wireguard_types::PeerPublicKey;
-use serde::{Deserialize, Serialize};
-use std::collections::HashMap;
-use std::net::{IpAddr, Ipv4Addr, Ipv6Addr};
-use std::time::SystemTime;
-use std::{fmt, ops::Deref, str::FromStr};
-
-#[cfg(feature = "verify")]
-use hmac::{Hmac, Mac};
-#[cfg(feature = "verify")]
-use nym_crypto::asymmetric::encryption::PrivateKey;
-#[cfg(feature = "verify")]
-use sha2::Sha256;
-
-pub type PendingRegistrations = HashMap<PeerPublicKey, RegistrationData>;
-pub type PrivateIPs = HashMap<IpPair, Taken>;
-
-#[cfg(feature = "verify")]
-pub type HmacSha256 = Hmac<Sha256>;
-
-pub type Nonce = u64;
-pub type Taken = Option<SystemTime>;
-
-pub const BANDWIDTH_CAP_PER_DAY: u64 = 250 * 1024 * 1024 * 1024; // 250 GB
-
-#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash, Serialize, Deserialize)]
-pub struct IpPair {
-    pub ipv4: Ipv4Addr,
-    pub ipv6: Ipv6Addr,
-}
-
-impl IpPair {
-    pub fn new(ipv4: Ipv4Addr, ipv6: Ipv6Addr) -> Self {
-        IpPair { ipv4, ipv6 }
-    }
-}
-
-impl From<(Ipv4Addr, Ipv6Addr)> for IpPair {
-    fn from((ipv4, ipv6): (Ipv4Addr, Ipv6Addr)) -> Self {
-        IpPair { ipv4, ipv6 }
-    }
-}
-
-impl fmt::Display for IpPair {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        write!(f, "({}, {})", self.ipv4, self.ipv6)
-    }
-}
-
-impl From<IpAddr> for IpPair {
-    fn from(value: IpAddr) -> Self {
-        let (before_last_byte, last_byte) = match value {
-            std::net::IpAddr::V4(ipv4_addr) => (ipv4_addr.octets()[2], ipv4_addr.octets()[3]),
-            std::net::IpAddr::V6(ipv6_addr) => (ipv6_addr.octets()[14], ipv6_addr.octets()[15]),
-        };
-        let last_bytes = ((before_last_byte as u16) << 8) | last_byte as u16;
-        let ipv4 = Ipv4Addr::new(
-            WG_TUN_DEVICE_IP_ADDRESS_V4.octets()[0],
-            WG_TUN_DEVICE_IP_ADDRESS_V4.octets()[1],
-            before_last_byte,
-            last_byte,
-        );
-        let ipv6 = Ipv6Addr::new(
-            WG_TUN_DEVICE_IP_ADDRESS_V6.segments()[0],
-            WG_TUN_DEVICE_IP_ADDRESS_V6.segments()[1],
-            WG_TUN_DEVICE_IP_ADDRESS_V6.segments()[2],
-            WG_TUN_DEVICE_IP_ADDRESS_V6.segments()[3],
-            WG_TUN_DEVICE_IP_ADDRESS_V6.segments()[4],
-            WG_TUN_DEVICE_IP_ADDRESS_V6.segments()[5],
-            WG_TUN_DEVICE_IP_ADDRESS_V6.segments()[6],
-            last_bytes,
-        );
-        IpPair::new(ipv4, ipv6)
-    }
-}
-
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq)]
-pub struct InitMessage {
-    /// Base64 encoded x25519 public key
-    pub pub_key: PeerPublicKey,
-}
-
-impl InitMessage {
-    pub fn new(pub_key: PeerPublicKey) -> Self {
-        InitMessage { pub_key }
-    }
-}
-
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq)]
-pub struct FinalMessage {
-    /// Gateway client data
-    pub gateway_client: GatewayClient,
-
-    /// Ecash credential
-    pub credential: Option<CredentialSpendingData>,
-}
-
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq)]
-pub struct RegistrationData {
-    pub nonce: u64,
-    pub gateway_data: GatewayClient,
-    pub wg_port: u16,
-}
-
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq)]
-pub struct RegistredData {
-    pub pub_key: PeerPublicKey,
-    pub private_ips: IpPair,
-    pub wg_port: u16,
-}
-
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq)]
-pub struct RemainingBandwidthData {
-    pub available_bandwidth: i64,
-}
-
-/// Client that wants to register sends its PublicKey bytes mac digest encrypted with a DH shared secret.
-/// Gateway/Nym node can then verify pub_key payload using the same process
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq)]
-pub struct GatewayClient {
-    /// Base64 encoded x25519 public key
-    pub pub_key: PeerPublicKey,
-
-    /// Assigned private IPs (v4 and v6)
-    pub private_ips: IpPair,
-
-    /// Sha256 hmac on the data (alongside the prior nonce)
-    pub mac: ClientMac,
-}
-
-impl GatewayClient {
-    #[cfg(feature = "verify")]
-    pub fn new(
-        local_secret: &PrivateKey,
-        remote_public: x25519_dalek::PublicKey,
-        private_ips: IpPair,
-        nonce: u64,
-    ) -> Self {
-        // convert from 1.0 x25519-dalek private key into 2.0 x25519-dalek
-        #[allow(clippy::expect_used)]
-        let static_secret = x25519_dalek::StaticSecret::from(local_secret.to_bytes());
-        let local_public: x25519_dalek::PublicKey = (&static_secret).into();
-
-        let dh = static_secret.diffie_hellman(&remote_public);
-
-        // TODO: change that to use our nym_crypto::hmac module instead
-        #[allow(clippy::expect_used)]
-        let mut mac = HmacSha256::new_from_slice(dh.as_bytes())
-            .expect("x25519 shared secret is always 32 bytes long");
-
-        mac.update(local_public.as_bytes());
-        mac.update(private_ips.to_string().as_bytes());
-        mac.update(&nonce.to_le_bytes());
-
-        GatewayClient {
-            pub_key: PeerPublicKey::new(local_public),
-            private_ips,
-            mac: ClientMac(mac.finalize().into_bytes().to_vec()),
-        }
-    }
-
-    // Reusable secret should be gateways Wireguard PK
-    // Client should perform this step when generating its payload, using its own WG PK
-    #[cfg(feature = "verify")]
-    pub fn verify(&self, gateway_key: &PrivateKey, nonce: u64) -> Result<(), Error> {
-        // convert from 1.0 x25519-dalek private key into 2.0 x25519-dalek
-        #[allow(clippy::expect_used)]
-        let static_secret = x25519_dalek::StaticSecret::from(gateway_key.to_bytes());
-
-        let dh = static_secret.diffie_hellman(&self.pub_key);
-
-        // TODO: change that to use our nym_crypto::hmac module instead
-        #[allow(clippy::expect_used)]
-        let mut mac = HmacSha256::new_from_slice(dh.as_bytes())
-            .expect("x25519 shared secret is always 32 bytes long");
-
-        mac.update(self.pub_key.as_bytes());
-        mac.update(self.private_ips.to_string().as_bytes());
-        mac.update(&nonce.to_le_bytes());
-
-        mac.verify_slice(&self.mac)
-            .map_err(|source| Error::FailedClientMacVerification {
-                client: self.pub_key.to_string(),
-                source,
-            })
-    }
-
-    pub fn pub_key(&self) -> PeerPublicKey {
-        self.pub_key
-    }
-}
-
-// TODO: change the inner type into generic array of size HmacSha256::OutputSize
-// TODO2: rely on our internal crypto/hmac
-#[derive(Debug, Clone, PartialEq)]
-pub struct ClientMac(Vec<u8>);
-
-impl fmt::Display for ClientMac {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        write!(f, "{}", general_purpose::STANDARD.encode(&self.0))
-    }
-}
-
-impl ClientMac {
-    #[allow(dead_code)]
-    pub fn new(mac: Vec<u8>) -> Self {
-        ClientMac(mac)
-    }
-}
-
-impl Deref for ClientMac {
-    type Target = Vec<u8>;
-
-    fn deref(&self) -> &Self::Target {
-        &self.0
-    }
-}
-
-impl FromStr for ClientMac {
-    type Err = Error;
-
-    fn from_str(s: &str) -> Result<Self, Self::Err> {
-        let mac_bytes: Vec<u8> =
-            general_purpose::STANDARD
-                .decode(s)
-                .map_err(|source| Error::MalformedClientMac {
-                    mac: s.to_string(),
-                    source,
-                })?;
-
-        Ok(ClientMac(mac_bytes))
-    }
-}
-
-impl Serialize for ClientMac {
-    fn serialize<S: serde::Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error> {
-        let encoded_key = general_purpose::STANDARD.encode(self.0.clone());
-        serializer.serialize_str(&encoded_key)
-    }
-}
-
-impl<'de> Deserialize<'de> for ClientMac {
-    fn deserialize<D: serde::Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error> {
-        let encoded_key = String::deserialize(deserializer)?;
-        ClientMac::from_str(&encoded_key).map_err(serde::de::Error::custom)
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-    use nym_crypto::asymmetric::encryption;
-
-    #[test]
-    fn create_ip_pair() {
-        let ipv4: IpAddr = Ipv4Addr::from_str("10.1.10.50").unwrap().into();
-        let ipv6: IpAddr = Ipv6Addr::from_str("fc01::0a32").unwrap().into();
-
-        assert_eq!(IpPair::from(ipv4), IpPair::from(ipv6));
-    }
-
-    #[test]
-    #[cfg(feature = "verify")]
-    fn client_request_roundtrip() {
-        let mut rng = rand::thread_rng();
-
-        let gateway_key_pair = encryption::KeyPair::new(&mut rng);
-        let client_key_pair = encryption::KeyPair::new(&mut rng);
-
-        let nonce = 1234567890;
-
-        let client = GatewayClient::new(
-            client_key_pair.private_key(),
-            x25519_dalek::PublicKey::from(gateway_key_pair.public_key().to_bytes()),
-            IpPair::new("10.0.0.42".parse().unwrap(), "fc00::42".parse().unwrap()),
-            nonce,
-        );
-        assert!(client.verify(gateway_key_pair.private_key(), nonce).is_ok())
-    }
-}
@@ -1,132 +0,0 @@
-// Copyright 2024 - Nym Technologies SA <contact@nymtech.net>
-// SPDX-License-Identifier: Apache-2.0
-
-use super::{
-    registration::{FinalMessage, InitMessage},
-    topup::TopUpMessage,
-};
-use nym_service_provider_requests_common::{Protocol, ServiceProviderType};
-use nym_wireguard_types::PeerPublicKey;
-use serde::{Deserialize, Serialize};
-
-use crate::make_bincode_serializer;
-
-use super::VERSION;
-
-fn generate_random() -> u64 {
-    use rand::RngCore;
-    let mut rng = rand::rngs::OsRng;
-    rng.next_u64()
-}
-
-#[derive(Clone, Debug, Serialize, Deserialize, PartialEq)]
-pub struct AuthenticatorRequest {
-    pub protocol: Protocol,
-    pub data: AuthenticatorRequestData,
-    pub request_id: u64,
-}
-
-impl AuthenticatorRequest {
-    pub fn from_reconstructed_message(
-        message: &nym_sphinx::receiver::ReconstructedMessage,
-    ) -> Result<Self, bincode::Error> {
-        use bincode::Options;
-        make_bincode_serializer().deserialize(&message.message)
-    }
-
-    pub fn new_initial_request(init_message: InitMessage) -> (Self, u64) {
-        let request_id = generate_random();
-        (
-            Self {
-                protocol: Protocol {
-                    service_provider_type: ServiceProviderType::Authenticator,
-                    version: VERSION,
-                },
-                data: AuthenticatorRequestData::Initial(init_message),
-                request_id,
-            },
-            request_id,
-        )
-    }
-
-    pub fn new_final_request(final_message: FinalMessage) -> (Self, u64) {
-        let request_id = generate_random();
-        (
-            Self {
-                protocol: Protocol {
-                    service_provider_type: ServiceProviderType::Authenticator,
-                    version: VERSION,
-                },
-                data: AuthenticatorRequestData::Final(Box::new(final_message)),
-                request_id,
-            },
-            request_id,
-        )
-    }
-
-    pub fn new_query_request(peer_public_key: PeerPublicKey) -> (Self, u64) {
-        let request_id = generate_random();
-        (
-            Self {
-                protocol: Protocol {
-                    service_provider_type: ServiceProviderType::Authenticator,
-                    version: VERSION,
-                },
-                data: AuthenticatorRequestData::QueryBandwidth(peer_public_key),
-                request_id,
-            },
-            request_id,
-        )
-    }
-
-    pub fn new_topup_request(top_up_message: TopUpMessage) -> (Self, u64) {
-        let request_id = generate_random();
-        (
-            Self {
-                protocol: Protocol {
-                    service_provider_type: ServiceProviderType::Authenticator,
-                    version: VERSION,
-                },
-                data: AuthenticatorRequestData::TopUpBandwidth(Box::new(top_up_message)),
-                request_id,
-            },
-            request_id,
-        )
-    }
-
-    pub fn to_bytes(&self) -> Result<Vec<u8>, bincode::Error> {
-        use bincode::Options;
-        make_bincode_serializer().serialize(self)
-    }
-}
-
-#[derive(Clone, Debug, Serialize, Deserialize, PartialEq)]
-pub enum AuthenticatorRequestData {
-    Initial(InitMessage),
-    Final(Box<FinalMessage>),
-    QueryBandwidth(PeerPublicKey),
-    TopUpBandwidth(Box<TopUpMessage>),
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-    use std::str::FromStr;
-
-    #[test]
-    fn check_first_bytes_protocol() {
-        let version = 5;
-        let data = AuthenticatorRequest {
-            protocol: Protocol {
-                version,
-                service_provider_type: ServiceProviderType::Authenticator,
-            },
-            data: AuthenticatorRequestData::Initial(InitMessage::new(
-                PeerPublicKey::from_str("yvNUDpT5l7W/xDhiu6HkqTHDQwbs/B3J5UrLmORl1EQ=").unwrap(),
-            )),
-            request_id: 1,
-        };
-        let bytes = *data.to_bytes().unwrap().first_chunk::<2>().unwrap();
-        assert_eq!(bytes, [version, ServiceProviderType::Authenticator as u8]);
-    }
-}
@@ -1,132 +0,0 @@
-// Copyright 2024 - Nym Technologies SA <contact@nymtech.net>
-// SPDX-License-Identifier: Apache-2.0
-
-use super::registration::{RegistrationData, RegistredData, RemainingBandwidthData};
-use nym_service_provider_requests_common::{Protocol, ServiceProviderType};
-use serde::{Deserialize, Serialize};
-
-use crate::make_bincode_serializer;
-
-use super::VERSION;
-
-#[derive(Clone, Debug, Serialize, Deserialize, PartialEq)]
-pub struct AuthenticatorResponse {
-    pub protocol: Protocol,
-    pub data: AuthenticatorResponseData,
-}
-
-impl AuthenticatorResponse {
-    pub fn new_pending_registration_success(
-        registration_data: RegistrationData,
-        request_id: u64,
-    ) -> Self {
-        Self {
-            protocol: Protocol {
-                service_provider_type: ServiceProviderType::Authenticator,
-                version: VERSION,
-            },
-            data: AuthenticatorResponseData::PendingRegistration(PendingRegistrationResponse {
-                reply: registration_data,
-                request_id,
-            }),
-        }
-    }
-
-    pub fn new_registered(registred_data: RegistredData, request_id: u64) -> Self {
-        Self {
-            protocol: Protocol {
-                service_provider_type: ServiceProviderType::Authenticator,
-                version: VERSION,
-            },
-            data: AuthenticatorResponseData::Registered(RegisteredResponse {
-                reply: registred_data,
-                request_id,
-            }),
-        }
-    }
-
-    pub fn new_remaining_bandwidth(
-        remaining_bandwidth_data: Option<RemainingBandwidthData>,
-        request_id: u64,
-    ) -> Self {
-        Self {
-            protocol: Protocol {
-                service_provider_type: ServiceProviderType::Authenticator,
-                version: VERSION,
-            },
-            data: AuthenticatorResponseData::RemainingBandwidth(RemainingBandwidthResponse {
-                reply: remaining_bandwidth_data,
-                request_id,
-            }),
-        }
-    }
-
-    pub fn new_topup_bandwidth(
-        remaining_bandwidth_data: RemainingBandwidthData,
-        request_id: u64,
-    ) -> Self {
-        Self {
-            protocol: Protocol {
-                service_provider_type: ServiceProviderType::Authenticator,
-                version: VERSION,
-            },
-            data: AuthenticatorResponseData::TopUpBandwidth(TopUpBandwidthResponse {
-                reply: remaining_bandwidth_data,
-                request_id,
-            }),
-        }
-    }
-
-    pub fn to_bytes(&self) -> Result<Vec<u8>, bincode::Error> {
-        use bincode::Options;
-        make_bincode_serializer().serialize(self)
-    }
-
-    pub fn from_reconstructed_message(
-        message: &nym_sphinx::receiver::ReconstructedMessage,
-    ) -> Result<Self, bincode::Error> {
-        use bincode::Options;
-        make_bincode_serializer().deserialize(&message.message)
-    }
-
-    pub fn id(&self) -> Option<u64> {
-        match &self.data {
-            AuthenticatorResponseData::PendingRegistration(response) => Some(response.request_id),
-            AuthenticatorResponseData::Registered(response) => Some(response.request_id),
-            AuthenticatorResponseData::RemainingBandwidth(response) => Some(response.request_id),
-            AuthenticatorResponseData::TopUpBandwidth(response) => Some(response.request_id),
-        }
-    }
-}
-
-#[derive(Clone, Debug, Serialize, Deserialize, PartialEq)]
-pub enum AuthenticatorResponseData {
-    PendingRegistration(PendingRegistrationResponse),
-    Registered(RegisteredResponse),
-    RemainingBandwidth(RemainingBandwidthResponse),
-    TopUpBandwidth(TopUpBandwidthResponse),
-}
-
-#[derive(Clone, Debug, Serialize, Deserialize, PartialEq)]
-pub struct PendingRegistrationResponse {
-    pub request_id: u64,
-    pub reply: RegistrationData,
-}
-
-#[derive(Clone, Debug, Serialize, Deserialize, PartialEq)]
-pub struct RegisteredResponse {
-    pub request_id: u64,
-    pub reply: RegistredData,
-}
-
-#[derive(Clone, Debug, Serialize, Deserialize, PartialEq)]
-pub struct RemainingBandwidthResponse {
-    pub request_id: u64,
-    pub reply: Option<RemainingBandwidthData>,
-}
-
-#[derive(Clone, Debug, Serialize, Deserialize, PartialEq)]
-pub struct TopUpBandwidthResponse {
-    pub request_id: u64,
-    pub reply: RemainingBandwidthData,
-}
@@ -1,15 +0,0 @@
-// Copyright 2024 - Nym Technologies SA <contact@nymtech.net>
-// SPDX-License-Identifier: Apache-2.0
-
-use nym_credentials_interface::CredentialSpendingData;
-use nym_wireguard_types::PeerPublicKey;
-use serde::{Deserialize, Serialize};
-
-#[derive(Serialize, Deserialize, Debug, Clone, PartialEq)]
-pub struct TopUpMessage {
-    /// Base64 encoded x25519 public key
-    pub pub_key: PeerPublicKey,
-
-    /// Ecash credential
-    pub credential: CredentialSpendingData,
-}
@@ -45,12 +45,11 @@ const DEFAULT_COVER_TRAFFIC_PRIMARY_SIZE_RATIO: f64 = 0.70;
 // clients/client-core/src/client/replies/reply_storage/surb_storage.rs
 const DEFAULT_MINIMUM_REPLY_SURB_STORAGE_THRESHOLD: usize = 10;
 const DEFAULT_MAXIMUM_REPLY_SURB_STORAGE_THRESHOLD: usize = 200;
-const DEFAULT_MINIMUM_REPLY_SURB_THRESHOLD_BUFFER: usize = 0;

 // define how much to request at once
 // clients/client-core/src/client/replies/reply_controller.rs
 const DEFAULT_MINIMUM_REPLY_SURB_REQUEST_SIZE: u32 = 10;
-const DEFAULT_MAXIMUM_REPLY_SURB_REQUEST_SIZE: u32 = 50;
+const DEFAULT_MAXIMUM_REPLY_SURB_REQUEST_SIZE: u32 = 100;

 const DEFAULT_MAXIMUM_ALLOWED_SURB_REQUEST_SIZE: u32 = 500;

@@ -622,10 +621,6 @@ pub struct ReplySurbs {
    /// Defines the maximum number of reply surbs the client wants to keep in its storage at any times.
    pub maximum_reply_surb_storage_threshold: usize,

-    /// Defines the soft threshold ontop of the minimum reply surb storage threshold for when the client
-    /// should proactively request additional reply surbs.
-    pub minimum_reply_surb_threshold_buffer: usize,
-
    /// Defines the minimum number of reply surbs the client would request.
    pub minimum_reply_surb_request_size: u32,

@@ -658,9 +653,6 @@ pub struct ReplySurbs {
    /// Specifies the number of mixnet hops the packet should go through. If not specified, then
    /// the default value is used.
    pub surb_mix_hops: Option<u8>,
-
-    /// Specifies if we should reset all the sender tags on startup
-    pub fresh_sender_tags: bool,
 }

 impl Default for ReplySurbs {
@@ -668,7 +660,6 @@ impl Default for ReplySurbs {
        ReplySurbs {
            minimum_reply_surb_storage_threshold: DEFAULT_MINIMUM_REPLY_SURB_STORAGE_THRESHOLD,
            maximum_reply_surb_storage_threshold: DEFAULT_MAXIMUM_REPLY_SURB_STORAGE_THRESHOLD,
-            minimum_reply_surb_threshold_buffer: DEFAULT_MINIMUM_REPLY_SURB_THRESHOLD_BUFFER,
            minimum_reply_surb_request_size: DEFAULT_MINIMUM_REPLY_SURB_REQUEST_SIZE,
            maximum_reply_surb_request_size: DEFAULT_MAXIMUM_REPLY_SURB_REQUEST_SIZE,
            maximum_allowed_reply_surb_request_size: DEFAULT_MAXIMUM_ALLOWED_SURB_REQUEST_SIZE,
@@ -678,7 +669,6 @@ impl Default for ReplySurbs {
            maximum_reply_surb_age: DEFAULT_MAXIMUM_REPLY_SURB_AGE,
            maximum_reply_key_age: DEFAULT_MAXIMUM_REPLY_KEY_AGE,
            surb_mix_hops: None,
-            fresh_sender_tags: false,
        }
    }
 }
@@ -181,7 +181,6 @@ impl From<ConfigV5> for Config {
                    maximum_reply_surb_age: value.debug.reply_surbs.maximum_reply_surb_age,
                    maximum_reply_key_age: value.debug.reply_surbs.maximum_reply_key_age,
                    surb_mix_hops: value.debug.reply_surbs.surb_mix_hops,
-                    ..Default::default()
                },
                ..Default::default()
            },
@@ -88,7 +88,7 @@ pub async fn setup_fs_reply_surb_backend<P: AsRef<Path>>(
    let db_path = db_path.as_ref();
    if db_path.exists() {
        info!("loading existing surb database");
-        match fs_backend::Backend::try_load(db_path, surb_config.fresh_sender_tags).await {
+        match fs_backend::Backend::try_load(db_path).await {
            Ok(backend) => Ok(backend),
            Err(err) => {
                error!("failed to setup persistent storage backend for our reply needs: {err}. We're going to create a fresh database instead. This behaviour might change in the future");
@@ -28,7 +28,6 @@ pub enum InputMessage {
        recipient: Recipient,
        data: Vec<u8>,
        lane: TransmissionLane,
-        max_retransmissions: Option<u32>,
    },

    /// Creates a message used for a duplex anonymous communication where the recipient
@@ -44,7 +43,6 @@ pub enum InputMessage {
        data: Vec<u8>,
        reply_surbs: u32,
        lane: TransmissionLane,
-        max_retransmissions: Option<u32>,
    },

    /// Attempt to use our internally received and stored `ReplySurb` to send the message back
@@ -55,7 +53,6 @@ pub enum InputMessage {
        recipient_tag: AnonymousSenderTag,
        data: Vec<u8>,
        lane: TransmissionLane,
-        max_retransmissions: Option<u32>,
    },

    MessageWrapper {
@@ -95,7 +92,6 @@ impl InputMessage {
            recipient,
            data,
            lane,
-            max_retransmissions: None,
        };
        if let Some(packet_type) = packet_type {
            InputMessage::new_wrapper(message, packet_type)
@@ -116,7 +112,28 @@ impl InputMessage {
            data,
            reply_surbs,
            lane,
-            max_retransmissions: None,
+        };
+        if let Some(packet_type) = packet_type {
+            InputMessage::new_wrapper(message, packet_type)
+        } else {
+            message
+        }
+    }
+
+    // IMHO `new_anonymous` should take `mix_hops: Option<u8>` as an argument instead of creating
+    // this function, but that would potentially break backwards compatibility with the current API
+    pub fn new_anonymous_with_custom_hops(
+        recipient: Recipient,
+        data: Vec<u8>,
+        reply_surbs: u32,
+        lane: TransmissionLane,
+        packet_type: Option<PacketType>,
+    ) -> Self {
+        let message = InputMessage::Anonymous {
+            recipient,
+            data,
+            reply_surbs,
+            lane,
        };
        if let Some(packet_type) = packet_type {
            InputMessage::new_wrapper(message, packet_type)
@@ -135,7 +152,6 @@ impl InputMessage {
            recipient_tag,
            data,
            lane,
-            max_retransmissions: None,
        };
        if let Some(packet_type) = packet_type {
            InputMessage::new_wrapper(message, packet_type)
@@ -153,34 +169,4 @@ impl InputMessage {
            InputMessage::MessageWrapper { message, .. } => message.lane(),
        }
    }
-
-    pub fn set_max_retransmissions(&mut self, max_retransmissions: u32) -> &mut Self {
-        match self {
-            InputMessage::Regular {
-                max_retransmissions: m,
-                ..
-            }
-            | InputMessage::Anonymous {
-                max_retransmissions: m,
-                ..
-            }
-            | InputMessage::Reply {
-                max_retransmissions: m,
-                ..
-            } => {
-                *m = Some(max_retransmissions);
-            }
-            InputMessage::Premade { .. } => {}
-            InputMessage::MessageWrapper { message, .. } => {
-                message.set_max_retransmissions(max_retransmissions);
-            }
-        }
-
-        self
-    }
-
-    pub fn with_max_retransmissions(mut self, max_retransmissions: u32) -> Self {
-        self.set_max_retransmissions(max_retransmissions);
-        self
-    }
 }
@@ -52,7 +52,7 @@ impl MixTrafficController {
        let (message_sender, message_receiver) =
            tokio::sync::mpsc::channel(MIX_MESSAGE_RECEIVER_BUFFER_SIZE);

-        let (client_sender, client_receiver) = tokio::sync::mpsc::channel(8);
+        let (client_sender, client_receiver) = tokio::sync::mpsc::channel(1);

        (
            MixTrafficController {
@@ -77,7 +77,7 @@ impl MixTrafficController {
    ) {
        let (message_sender, message_receiver) =
            tokio::sync::mpsc::channel(MIX_MESSAGE_RECEIVER_BUFFER_SIZE);
-        let (client_sender, client_receiver) = tokio::sync::mpsc::channel(8);
+        let (client_sender, client_receiver) = tokio::sync::mpsc::channel(1);
        (
            MixTrafficController {
                gateway_transceiver,
@@ -222,6 +222,9 @@ impl ActionController {

    // note: when the entry expires it's automatically removed from pending_acks_timers
    fn handle_expired_ack_timer(&mut self, expired_ack: Expired<FragmentIdentifier>) {
+        // I'm honestly not sure how to handle it, because getting it means other things in our
+        // system are already misbehaving. If we ever see this panic, then I guess we should worry
+        // about it. Perhaps just reschedule it at later point?
        let frag_id = expired_ack.into_inner();

        trace!("{frag_id} has expired");
@@ -65,12 +65,11 @@ where
        recipient_tag: AnonymousSenderTag,
        data: Vec<u8>,
        lane: TransmissionLane,
-        max_retransmissions: Option<u32>,
    ) {
        // offload reply handling to the dedicated task
-        if let Err(err) =
-            self.reply_controller_sender
-                .send_reply(recipient_tag, data, lane, max_retransmissions)
+        if let Err(err) = self
+            .reply_controller_sender
+            .send_reply(recipient_tag, data, lane)
        {
            if !self.task_client.is_shutdown_poll() {
                error!("failed to send a reply - {err}");
@@ -84,11 +83,10 @@ where
        content: Vec<u8>,
        lane: TransmissionLane,
        packet_type: PacketType,
-        max_retransmissions: Option<u32>,
    ) {
        if let Err(err) = self
            .message_handler
-            .try_send_plain_message(recipient, content, lane, packet_type, max_retransmissions)
+            .try_send_plain_message(recipient, content, lane, packet_type)
            .await
        {
            warn!("failed to send a plain message - {err}")
@@ -102,18 +100,10 @@ where
        reply_surbs: u32,
        lane: TransmissionLane,
        packet_type: PacketType,
-        max_retransmissions: Option<u32>,
    ) {
        if let Err(err) = self
            .message_handler
-            .try_send_message_with_reply_surbs(
-                recipient,
-                content,
-                reply_surbs,
-                lane,
-                packet_type,
-                max_retransmissions,
-            )
+            .try_send_message_with_reply_surbs(recipient, content, reply_surbs, lane, packet_type)
            .await
        {
            warn!("failed to send a repliable message - {err}")
@@ -126,42 +116,25 @@ where
                recipient,
                data,
                lane,
-                max_retransmissions,
            } => {
-                self.handle_plain_message(
-                    recipient,
-                    data,
-                    lane,
-                    PacketType::Mix,
-                    max_retransmissions,
-                )
-                .await
+                self.handle_plain_message(recipient, data, lane, PacketType::Mix)
+                    .await
            }
            InputMessage::Anonymous {
                recipient,
                data,
                reply_surbs,
                lane,
-                max_retransmissions,
            } => {
-                self.handle_repliable_message(
-                    recipient,
-                    data,
-                    reply_surbs,
-                    lane,
-                    PacketType::Mix,
-                    max_retransmissions,
-                )
-                .await
+                self.handle_repliable_message(recipient, data, reply_surbs, lane, PacketType::Mix)
+                    .await
            }
            InputMessage::Reply {
                recipient_tag,
                data,
                lane,
-                max_retransmissions,
            } => {
-                self.handle_reply(recipient_tag, data, lane, max_retransmissions)
-                    .await;
+                self.handle_reply(recipient_tag, data, lane).await;
            }
            InputMessage::Premade { msgs, lane } => self.handle_premade_packets(msgs, lane).await,
            InputMessage::MessageWrapper {
@@ -172,42 +145,25 @@ where
                    recipient,
                    data,
                    lane,
-                    max_retransmissions,
                } => {
-                    self.handle_plain_message(
-                        recipient,
-                        data,
-                        lane,
-                        packet_type,
-                        max_retransmissions,
-                    )
-                    .await
+                    self.handle_plain_message(recipient, data, lane, packet_type)
+                        .await
                }
                InputMessage::Anonymous {
                    recipient,
                    data,
                    reply_surbs,
                    lane,
-                    max_retransmissions,
                } => {
-                    self.handle_repliable_message(
-                        recipient,
-                        data,
-                        reply_surbs,
-                        lane,
-                        packet_type,
-                        max_retransmissions,
-                    )
-                    .await
+                    self.handle_repliable_message(recipient, data, reply_surbs, lane, packet_type)
+                        .await
                }
                InputMessage::Reply {
                    recipient_tag,
                    data,
                    lane,
-                    max_retransmissions,
                } => {
-                    self.handle_reply(recipient_tag, data, lane, max_retransmissions)
-                        .await;
+                    self.handle_reply(recipient_tag, data, lane).await;
                }
                InputMessage::Premade { msgs, lane } => {
                    self.handle_premade_packets(msgs, lane).await
@@ -72,7 +72,6 @@ pub struct PendingAcknowledgement {
    delay: SphinxDelay,
    destination: PacketDestination,
    retransmissions: u32,
-    max_retransmissions: Option<u32>,
 }

 impl PendingAcknowledgement {
@@ -81,14 +80,12 @@ impl PendingAcknowledgement {
        message_chunk: Fragment,
        delay: SphinxDelay,
        recipient: Recipient,
-        max_retransmissions: Option<u32>,
    ) -> Self {
        PendingAcknowledgement {
            message_chunk,
            delay,
            destination: PacketDestination::KnownRecipient(recipient.into()),
            retransmissions: 0,
-            max_retransmissions,
        }
    }

@@ -97,7 +94,6 @@ impl PendingAcknowledgement {
        delay: SphinxDelay,
        recipient_tag: AnonymousSenderTag,
        extra_surb_request: bool,
-        max_retransmissions: Option<u32>,
    ) -> Self {
        PendingAcknowledgement {
            message_chunk,
@@ -107,7 +103,6 @@ impl PendingAcknowledgement {
                extra_surb_request,
            },
            retransmissions: 0,
-            max_retransmissions,
        }
    }

@@ -123,18 +118,6 @@ impl PendingAcknowledgement {
        self.delay = new_delay;
        self.retransmissions += 1;
    }
-
-    pub(crate) fn reached_max_retransmissions(
-        &self,
-        global_max_retransmissions: Option<u32>,
-    ) -> bool {
-        let reached_local_max = self
-            .max_retransmissions
-            .is_some_and(|limit| self.retransmissions >= limit);
-        let reached_global_max =
-            global_max_retransmissions.is_some_and(|limit| self.retransmissions >= limit);
-        reached_local_max || reached_global_max
-    }
 }

 /// AcknowledgementControllerConnectors represents set of channels for communication with
@@ -79,15 +79,17 @@ where

        let frag_id = timed_out_ack.message_chunk.fragment_identifier();

-        if timed_out_ack.reached_max_retransmissions(self.maximum_retransmissions) {
-            debug!("reached maximum number of allowed retransmissions for the packet");
-            if let Err(err) = self
-                .action_sender
-                .unbounded_send(Action::new_remove(frag_id))
-            {
-                error!("Failed to send remove action to the controller: {err}");
+        if let Some(limit) = self.maximum_retransmissions {
+            if timed_out_ack.retransmissions >= limit {
+                warn!("reached maximum number of allowed retransmissions for the packet");
+                if let Err(err) = self
+                    .action_sender
+                    .unbounded_send(Action::new_remove(frag_id))
+                {
+                    error!("Failed to send remove action to the controller: {err}");
+                }
+                return;
            }
-            return;
        }

        let maybe_prepared_fragment = match &timed_out_ack.destination {
@@ -6,7 +6,6 @@ use crate::client::real_messages_control::real_traffic_stream::{
    BatchRealMessageSender, RealMessage,
 };
 use crate::client::real_messages_control::{AckActionSender, Action};
-use crate::client::replies::reply_controller::MaxRetransmissions;
 use crate::client::replies::reply_storage::{ReceivedReplySurbsMap, SentReplyKeys, UsedSenderTags};
 use crate::client::topology_control::{TopologyAccessor, TopologyReadPermit};
 use log::{debug, error, info, trace, warn};
@@ -34,12 +33,10 @@ pub enum PreparationError {
    #[error(transparent)]
    NymTopologyError(#[from] NymTopologyError),

-    #[error("message too long for a single SURB, splitting into {fragments} fragments.")]
+    #[error("The received message cannot be sent using a single reply surb. It ended up getting split into {fragments} fragments.")]
    MessageTooLongForSingleSurb { fragments: usize },

-    #[error(
-        "not enough reply SURBs to send the message, available: {available} required: {required}."
-    )]
+    #[error("Not enough reply SURBs to send the message. We have {available} available and require at least {required}.")]
    NotEnoughSurbs { available: usize, required: usize },
 }

@@ -143,12 +140,6 @@ impl Config {
    }
 }

-#[derive(Clone)]
-pub(crate) struct FragmentWithMaxRetransmissions {
-    pub(crate) fragment: Fragment,
-    pub(crate) max_retransmissions: MaxRetransmissions,
-}
-
 #[derive(Clone)]
 pub(crate) struct MessageHandler<R> {
    config: Config,
@@ -205,10 +196,10 @@ where
            trace!("we already had sender tag for {recipient}");
            existing
        } else {
-            debug!("creating new sender tag for {recipient}");
+            info!("creating new sender tag for {recipient}");
            let new_tag = AnonymousSenderTag::new_random(&mut self.rng);
            self.tag_storage.insert_new(recipient, new_tag);
-            info!("using {new_tag} for all anonymous messages sent to {recipient}");
+            info!("we'll be using {new_tag} for all anonymous messages sent to {recipient}");
            new_tag
        }
    }
@@ -301,14 +292,8 @@ where
            Some(chunk.fragment_identifier()),
        );
        let delay = prepared_fragment.total_delay;
-        let max_retransmissions = None;
-        let pending_ack = PendingAcknowledgement::new_anonymous(
-            chunk,
-            delay,
-            target,
-            is_extra_surb_request,
-            max_retransmissions,
-        );
+        let pending_ack =
+            PendingAcknowledgement::new_anonymous(chunk, delay, target, is_extra_surb_request);

        let lane = if is_extra_surb_request {
            TransmissionLane::ReplySurbRequest
@@ -363,7 +348,7 @@ where
    pub(crate) async fn try_send_reply_chunks_on_lane(
        &mut self,
        target: AnonymousSenderTag,
-        fragments: Vec<FragmentWithMaxRetransmissions>,
+        fragments: Vec<Fragment>,
        reply_surbs: Vec<ReplySurb>,
        lane: TransmissionLane,
    ) -> Result<(), SurbWrappedPreparationError> {
@@ -380,12 +365,12 @@ where
    pub(crate) async fn try_send_reply_chunks(
        &mut self,
        target: AnonymousSenderTag,
-        fragments: Vec<(TransmissionLane, FragmentWithMaxRetransmissions)>,
+        fragments: Vec<(TransmissionLane, Fragment)>,
        reply_surbs: Vec<ReplySurb>,
    ) -> Result<(), SurbWrappedPreparationError> {
        let prepared_fragments = self
            .prepare_reply_chunks_for_sending(
-                fragments.iter().map(|(_, f)| f.fragment.clone()).collect(),
+                fragments.iter().map(|(_, f)| f.clone()).collect(),
                reply_surbs,
            )
            .await?;
@@ -395,21 +380,12 @@ where

        for (raw, prepared) in fragments.into_iter().zip(prepared_fragments.into_iter()) {
            let lane = raw.0;
-            let FragmentWithMaxRetransmissions {
-                fragment,
-                max_retransmissions,
-            } = raw.1;
+            let fragment = raw.1;

            let real_message =
                RealMessage::new(prepared.mix_packet, Some(prepared.fragment_identifier));
            let delay = prepared.total_delay;
-            let pending_ack = PendingAcknowledgement::new_anonymous(
-                fragment,
-                delay,
-                target,
-                false,
-                max_retransmissions,
-            );
+            let pending_ack = PendingAcknowledgement::new_anonymous(fragment, delay, target, false);

            let entry = to_forward.entry(lane).or_default();
            entry.push(real_message);
@@ -438,17 +414,10 @@ where
        message: Vec<u8>,
        lane: TransmissionLane,
        packet_type: PacketType,
-        max_retransmissions: Option<u32>,
    ) -> Result<(), PreparationError> {
        let message = NymMessage::new_plain(message);
-        self.try_split_and_send_non_reply_message(
-            message,
-            recipient,
-            lane,
-            packet_type,
-            max_retransmissions,
-        )
-        .await
+        self.try_split_and_send_non_reply_message(message, recipient, lane, packet_type)
+            .await
    }

    pub(crate) async fn try_split_and_send_non_reply_message(
@@ -457,7 +426,6 @@ where
        recipient: Recipient,
        lane: TransmissionLane,
        packet_type: PacketType,
-        max_retransmissions: Option<u32>,
    ) -> Result<(), PreparationError> {
        debug!("Sending non-reply message with packet type {packet_type}");
        // TODO: I really dislike existence of this assertion, it implies code has to be re-organised
@@ -497,8 +465,7 @@ where
                Some(fragment.fragment_identifier()),
            );
            let delay = prepared_fragment.total_delay;
-            let pending_ack =
-                PendingAcknowledgement::new_known(fragment, delay, recipient, max_retransmissions);
+            let pending_ack = PendingAcknowledgement::new_known(fragment, delay, recipient);

            real_messages.push(real_message);
            pending_acks.push(pending_ack);
@@ -526,15 +493,11 @@ where
            reply_surbs,
        ));

-        // When sending SURBs we want to retransmit
-        let max_retransmissions = None;
-
        self.try_split_and_send_non_reply_message(
            message,
            recipient,
            TransmissionLane::AdditionalReplySurbs,
            packet_type,
-            max_retransmissions,
        )
        .await?;

@@ -551,7 +514,6 @@ where
        num_reply_surbs: u32,
        lane: TransmissionLane,
        packet_type: PacketType,
-        max_retransmissions: Option<u32>,
    ) -> Result<(), SurbWrappedPreparationError> {
        debug!("Sending message with reply SURBs with packet type {packet_type}");
        let sender_tag = self.get_or_create_sender_tag(&recipient);
@@ -562,14 +524,8 @@ where
        let message =
            NymMessage::new_repliable(RepliableMessage::new_data(message, sender_tag, reply_surbs));

-        self.try_split_and_send_non_reply_message(
-            message,
-            recipient,
-            lane,
-            packet_type,
-            max_retransmissions,
-        )
-        .await?;
+        self.try_split_and_send_non_reply_message(message, recipient, lane, packet_type)
+            .await?;

        log::trace!("storing {} reply keys", reply_keys.len());
        self.reply_key_storage.insert_multiple(reply_keys);
@@ -153,7 +153,7 @@ impl RealMessagesController<OsRng> {
        let rng = OsRng;

        // create channels for inter-task communication
-        let (real_message_sender, real_message_receiver) = tokio::sync::mpsc::channel(8);
+        let (real_message_sender, real_message_receiver) = tokio::sync::mpsc::channel(1);
        let (sent_notifier_tx, sent_notifier_rx) = mpsc::unbounded();
        let (ack_action_tx, ack_action_rx) = mpsc::unbounded();
        let ack_controller_connectors = AcknowledgementControllerConnectors::new(
@@ -517,25 +517,17 @@ where
        use crate::error::ClientCoreStatusMessage;

        let packets = self.transmission_buffer.total_size();
-        let lanes = self.transmission_buffer.lanes();
+        let backlog = self.transmission_buffer.total_size_in_bytes() as f64 / 1024.0;
+        let lanes = self.transmission_buffer.num_lanes();
        let mult = self.sending_delay_controller.current_multiplier();
        let delay = self.current_average_message_sending_delay().as_millis();
-
-        let lane_status = lanes
-            .iter()
-            .map(|lane_name| {
-                let lane_length = self.transmission_buffer.lane_length(lane_name).unwrap_or(0);
-                format!("{lane_name:?}: {lane_length}")
-            })
-            .collect::<Vec<String>>()
-            .join(", ");
-
        let status_str = if self.config.traffic.disable_main_poisson_packet_distribution {
-            format!("Packet backlog: {lane_status}, no delay")
+            format!("Packet backlog: {backlog:.2} kiB ({packets}), {lanes} lanes, no delay")
        } else {
-            format!("Packet backlog: {lane_status}, avg delay: {delay}ms ({mult})")
+            format!(
+                "Packet backlog: {backlog:.2} kiB ({packets}), {lanes} lanes, avg delay: {delay}ms ({mult})"
+            )
        };
-
        if packets > 1000 {
            log::warn!("{status_str}");
        } else if packets > 0 {
@@ -23,10 +23,6 @@ use nym_statistics_common::clients::{packet_statistics::PacketStatisticsEvent, C
 use nym_task::TaskClient;
 use std::collections::HashSet;
 use std::sync::Arc;
-use std::time::{Duration, Instant};
-
-// The interval at which we check for stale buffers
-const STALE_BUFFER_CHECK_INTERVAL: Duration = Duration::from_secs(10);

 // Buffer Requests to say "hey, send any reconstructed messages to this channel"
 // or to say "hey, I'm going offline, don't send anything more to me. Just buffer them instead"
@@ -52,9 +48,6 @@ struct ReceivedMessagesBufferInner<R: MessageReceiver> {
    recently_reconstructed: HashSet<i32>,

    stats_tx: ClientStatsSender,
-
-    // Periodically check for stale buffers to clean up
-    last_stale_check: Instant,
 }

 impl<R: MessageReceiver> ReceivedMessagesBufferInner<R> {
@@ -103,10 +96,9 @@ impl<R: MessageReceiver> ReceivedMessagesBufferInner<R> {
                    }
                    None
                }
-                _ => {
-                    error!("unexpected error occurred during message reconstruction: {err}");
-                    None
-                }
+                _ => unreachable!(
+                    "no other error kind should have been returned here! If so, it's a bug!"
+                ),
            },
            Ok(reconstruction_result) => match reconstruction_result {
                Some((reconstructed_message, used_sets)) => {
@@ -152,16 +144,6 @@ impl<R: MessageReceiver> ReceivedMessagesBufferInner<R> {

        self.recover_from_fragment(fragment_data, raw_fragment_size)
    }
-
-    fn cleanup_stale_buffers(&mut self) {
-        let now = Instant::now();
-        if now - self.last_stale_check > STALE_BUFFER_CHECK_INTERVAL {
-            self.last_stale_check = now;
-            self.message_receiver
-                .reconstructor()
-                .cleanup_stale_buffers();
-        }
-    }
 }

 #[derive(Debug, Clone)]
@@ -190,7 +172,6 @@ impl<R: MessageReceiver> ReceivedMessagesBuffer<R> {
                message_sender: None,
                recently_reconstructed: HashSet::new(),
                stats_tx,
-                last_stale_check: Instant::now(),
            })),
            reply_key_storage,
            reply_controller_sender,
@@ -411,11 +392,6 @@ impl<R: MessageReceiver> ReceivedMessagesBuffer<R> {
            }
        }

-        // Cleanup stale buffers, if there are any fragments that simply never arrived.
-        // We do this here as part of handling new received fragments so that we can keep the event
-        // loop focused on processing new messages.
-        inner_guard.cleanup_stale_buffers();
-
        drop(inner_guard);

        if !completed_messages.is_empty() {
@@ -2,9 +2,7 @@
 // SPDX-License-Identifier: Apache-2.0

 use crate::client::real_messages_control::acknowledgement_control::PendingAcknowledgement;
-use crate::client::real_messages_control::message_handler::{
-    FragmentWithMaxRetransmissions, MessageHandler, PreparationError,
-};
+use crate::client::real_messages_control::message_handler::{MessageHandler, PreparationError};
 use crate::client::replies::reply_storage::CombinedReplyStorage;
 use futures::channel::oneshot;
 use futures::StreamExt;
@@ -12,7 +10,7 @@ use log::{debug, error, info, trace, warn};
 use nym_sphinx::addressing::clients::Recipient;
 use nym_sphinx::anonymous_replies::requests::AnonymousSenderTag;
 use nym_sphinx::anonymous_replies::ReplySurb;
-use nym_sphinx::chunking::fragment::FragmentIdentifier;
+use nym_sphinx::chunking::fragment::{Fragment, FragmentIdentifier};
 use nym_task::connections::{ConnectionId, TransmissionLane};
 use nym_task::TaskClient;
 use rand::{CryptoRng, Rng};
@@ -51,8 +49,6 @@ impl Config {
 // - replies to "give additional surbs" requests
 // - will reply to future heartbeats

-pub type MaxRetransmissions = Option<u32>;
-
 // TODO: this should be split into ingress and egress controllers
 // because currently its trying to perform two distinct jobs
 pub struct ReplyController<R> {
@@ -63,8 +59,7 @@ pub struct ReplyController<R> {
    // of surbs required to send the message through
    // expected_reliability: f32,
    request_receiver: ReplyControllerReceiver,
-    pending_replies:
-        HashMap<AnonymousSenderTag, TransmissionBuffer<FragmentWithMaxRetransmissions>>,
+    pending_replies: HashMap<AnonymousSenderTag, TransmissionBuffer<Fragment>>,

    /// Retransmission packets that have already timed out and are waiting for additional reply SURBs
    /// so that they could be sent back to the network. Once we receive more SURBs, we should send them ASAP.
@@ -101,13 +96,12 @@ where
        }
    }

-    fn insert_pending_replies<I: IntoIterator<Item = FragmentWithMaxRetransmissions>>(
+    fn insert_pending_replies<I: IntoIterator<Item = Fragment>>(
        &mut self,
        recipient: &AnonymousSenderTag,
        fragments: I,
        lane: TransmissionLane,
    ) {
-        trace!("buffering pending replies for {recipient}");
        self.pending_replies
            .entry(*recipient)
            .or_insert_with(TransmissionBuffer::new)
@@ -117,9 +111,8 @@ where
    fn re_insert_pending_replies(
        &mut self,
        recipient: &AnonymousSenderTag,
-        fragments: Vec<(TransmissionLane, FragmentWithMaxRetransmissions)>,
+        fragments: Vec<(TransmissionLane, Fragment)>,
    ) {
-        trace!("re-inserting pending replies for {recipient}");
        // the buffer should ALWAYS exist at this point, if it doesn't, it's a bug...
        self.pending_replies
            .entry(*recipient)
@@ -132,7 +125,6 @@ where
        recipient: &AnonymousSenderTag,
        data: Vec<Arc<PendingAcknowledgement>>,
    ) {
-        trace!("re-inserting pending retransmissions for {recipient}");
        // the underlying entry MUST exist as we've just got data from there
        let map_entry = self
            .pending_retransmissions
@@ -150,7 +142,7 @@ where
    }

    fn should_request_more_surbs(&self, target: &AnonymousSenderTag) -> bool {
-        trace!("checking if we should request more surbs from {target}");
+        trace!("checking if we should request more surbs from {:?}", target);

        let pending_queue_size = self
            .pending_replies
@@ -166,6 +158,11 @@ where

        let total_queue = pending_queue_size + retransmission_queue;

+        // simple as that - there's absolutely nothing to retransmit
+        if total_queue == 0 {
+            return false;
+        }
+
        let available_surbs = self
            .full_reply_storage
            .surbs_storage_ref()
@@ -182,27 +179,11 @@ where
            .full_reply_storage
            .surbs_storage_ref()
            .max_surb_threshold();
-        let min_surbs_threshold_buffer =
-            self.config.reply_surbs.minimum_reply_surb_threshold_buffer;

-        // After clearing the queue, we want to have at least `min_surbs_threshold` surbs available
-        // and reserved for requesting additional surbs, and in addition to that we also want to
-        // have `min_surbs_threshold_buffer` surbs available proactively.
-        let target_surbs_after_clearing_queue = min_surbs_threshold + min_surbs_threshold_buffer;
+        debug!("total queue size: {total_queue} = pending data {pending_queue_size} + pending retransmission {retransmission_queue}, available surbs: {available_surbs} pending surbs: {pending_surbs} threshold range: {min_surbs_threshold}..{max_surbs_threshold}");

-        // Check if we have enough surbs to handle the total queue and maintain minimum thresholds
-        let total_required_surbs = total_queue + target_surbs_after_clearing_queue;
-        let total_available_surbs = pending_surbs + available_surbs;
-
-        debug!("total queue size: {total_queue} = pending data {pending_queue_size} + pending retransmission {retransmission_queue}, available surbs: {available_surbs} pending surbs: {pending_surbs} threshold range: {min_surbs_threshold}..+{min_surbs_threshold_buffer}..{max_surbs_threshold}");
-
-        // We should request more surbs if:
-        // 1. We haven't hit the maximum surb threshold, and
-        // 2. We don't have enough surbs to handle the queue plus minimum thresholds
-        let is_below_max_threshold = total_available_surbs < max_surbs_threshold;
-        let is_below_required_surbs = total_available_surbs < total_required_surbs;
-
-        is_below_max_threshold && is_below_required_surbs
+        (pending_surbs + available_surbs) < max_surbs_threshold
+            && (pending_surbs + available_surbs) < (total_queue + min_surbs_threshold)
    }

    async fn handle_send_reply(
@@ -210,7 +191,6 @@ where
        recipient_tag: AnonymousSenderTag,
        data: Vec<u8>,
        lane: TransmissionLane,
-        max_retransmissions: Option<u32>,
    ) {
        if !self
            .full_reply_storage
@@ -248,14 +228,7 @@ where
                .get_reply_surbs(&recipient_tag, max_to_send);

            if let Some(reply_surbs) = surbs {
-                let to_send = fragments
-                    .drain(..max_to_send)
-                    .map(|f| FragmentWithMaxRetransmissions {
-                        fragment: f,
-                        max_retransmissions,
-                    })
-                    .collect::<Vec<_>>();
-
+                let to_send = fragments.drain(..max_to_send).collect::<Vec<_>>();
                if let Err(err) = self
                    .message_handler
                    .try_send_reply_chunks_on_lane(
@@ -271,10 +244,6 @@ where
                        &recipient_tag,
                    );
                    warn!("failed to send reply to {recipient_tag}: {err}");
-                    info!(
-                        "buffering {no_fragments} fragments for {recipient_tag}",
-                        no_fragments = to_send.len()
-                    );
                    self.insert_pending_replies(&recipient_tag, to_send, lane);
                }
            }
@@ -282,20 +251,6 @@ where

        // if there's leftover data we didn't send because we didn't have enough (or any) surbs - buffer it
        if !fragments.is_empty() {
-            // Ideally we should have enough surbs above the minimum threshold to handle sending
-            // new replies without having to first request more surbs. That's why I'd like to log
-            // these cases as they might indicate a problem with the surb management.
-            debug!(
-                "buffering {no_fragments} fragments for {recipient_tag}",
-                no_fragments = fragments.len()
-            );
-            let fragments: Vec<_> = fragments
-                .into_iter()
-                .map(|fragment| FragmentWithMaxRetransmissions {
-                    fragment,
-                    max_retransmissions,
-                })
-                .collect();
            self.insert_pending_replies(&recipient_tag, fragments, lane);
        }

@@ -310,7 +265,6 @@ where
        target: AnonymousSenderTag,
        amount: u32,
    ) -> Result<(), PreparationError> {
-        debug!("requesting {amount} additional reply surbs for {target}");
        let reply_surb = self
            .full_reply_storage
            .surbs_storage_ref()
@@ -429,7 +383,7 @@ where
        &mut self,
        from: &AnonymousSenderTag,
        amount: usize,
-    ) -> Option<Vec<(TransmissionLane, FragmentWithMaxRetransmissions)>> {
+    ) -> Option<Vec<(TransmissionLane, Fragment)>> {
        // if possible, pop all pending replies, if not, pop only entries for which we'd have a reply surb
        let total = self.pending_replies.get(from)?.total_size();
        trace!("pending queue has {total} elements");
@@ -709,11 +663,7 @@ where
                recipient,
                message,
                lane,
-                max_retransmissions,
-            } => {
-                self.handle_send_reply(recipient, message, lane, max_retransmissions)
-                    .await
-            }
+            } => self.handle_send_reply(recipient, message, lane).await,
            ReplyControllerMessage::AdditionalSurbs {
                sender_tag,
                reply_surbs,
@@ -736,7 +686,7 @@ where
    // it should take into consideration the average latency, sending rate and queue size.
    // it should request as many surbs as it takes to saturate its sending rate before next batch arrives
    async fn request_reply_surbs_for_queue_clearing(&mut self, target: AnonymousSenderTag) {
-        trace!("requesting surbs for queue clearing");
+        trace!("requesting surbs for queues clearing");

        let pending_queue_size = self
            .pending_replies
@@ -750,18 +700,17 @@ where
            .map(|pending_queue| pending_queue.len())
            .unwrap_or_default();

-        let min_surbs_buffer = self.config.reply_surbs.minimum_reply_surb_threshold_buffer as u32;
-
        let total_queue = (pending_queue_size + retransmission_queue) as u32;

-        // To proactively request additional surbs, we aim to have a buffer of extra surbs in our
-        // storage.
-        let total_queue_with_buffer = total_queue + min_surbs_buffer;
+        if total_queue == 0 {
+            trace!("the pending queues for {:?} are already empty", target);
+            return;
+        }

        let request_size = min(
            self.config.reply_surbs.maximum_reply_surb_request_size,
            max(
-                total_queue_with_buffer,
+                total_queue,
                self.config.reply_surbs.minimum_reply_surb_request_size,
            ),
        );
@@ -770,7 +719,7 @@ where
            .request_additional_reply_surbs(target, request_size)
            .await
        {
-            info!("{err}")
+            warn!("failed to request additional surbs... - {err}")
        }
    }

@@ -66,14 +66,12 @@ impl ReplyControllerSender {
        recipient: AnonymousSenderTag,
        message: Vec<u8>,
        lane: TransmissionLane,
-        max_retransmissions: Option<u32>,
    ) -> Result<(), ReplyControllerSenderError> {
        self.0
            .unbounded_send(ReplyControllerMessage::SendReply {
                recipient,
                message,
                lane,
-                max_retransmissions,
            })
            .map_err(ReplyControllerSenderError::SendReply)
    }
@@ -162,7 +160,6 @@ pub enum ReplyControllerMessage {
        recipient: AnonymousSenderTag,
        message: Vec<u8>,
        lane: TransmissionLane,
-        max_retransmissions: Option<u32>,
    },

    AdditionalSurbs {
@@ -58,8 +58,8 @@ impl<T> TransmissionBuffer<T> {
    }

    #[cfg(not(target_arch = "wasm32"))]
-    pub(crate) fn lanes(&self) -> Vec<TransmissionLane> {
-        self.buffer.keys().cloned().collect()
+    pub(crate) fn num_lanes(&self) -> usize {
+        self.buffer.keys().count()
    }

    pub(crate) fn lane_length(&self, lane: &TransmissionLane) -> Option<usize> {
@@ -83,7 +83,6 @@ impl<T> TransmissionBuffer<T> {
    }

    #[cfg(not(target_arch = "wasm32"))]
-    #[allow(unused)]
    pub(crate) fn total_size_in_bytes(&self) -> usize
    where
        T: SizedData,
@@ -10,7 +10,7 @@ use crate::{
    CombinedReplyStorage, ReceivedReplySurbsMap, ReplyStorageBackend, SentReplyKeys, UsedSenderTags,
 };
 use async_trait::async_trait;
-use log::{debug, error, info, warn};
+use log::{error, info, warn};
 use nym_sphinx::anonymous_replies::requests::AnonymousSenderTag;
 use std::fs;
 use std::path::{Path, PathBuf};
@@ -52,10 +52,7 @@ impl Backend {
        Ok(backend)
    }

-    pub async fn try_load<P: AsRef<Path>>(
-        database_path: P,
-        fresh_sender_tags: bool,
-    ) -> Result<Self, StorageError> {
+    pub async fn try_load<P: AsRef<Path>>(database_path: P) -> Result<Self, StorageError> {
        let owned_path: PathBuf = database_path.as_ref().into();
        if owned_path.file_name().is_none() {
            return Err(StorageError::DatabasePathWithoutFilename {
@@ -121,9 +118,6 @@ impl Backend {
        if days > 2 {
            info!("it's been over {days} days and {hours} hours since we last used our data store. our used sender tags are already outdated - we're going to purge them now.");
            manager.delete_all_tags().await?;
-        } else if fresh_sender_tags {
-            debug!("starting with fresh sender tags");
-            manager.delete_all_tags().await?;
        }

        Ok(Backend {
@@ -20,8 +20,8 @@ use nym_credentials_interface::TicketType;
 use nym_crypto::asymmetric::identity;
 use nym_gateway_requests::registration::handshake::client_handshake;
 use nym_gateway_requests::{
-    BinaryRequest, ClientControlRequest, ClientRequest, GatewayProtocolVersionExt,
-    SensitiveServerResponse, ServerResponse, SharedGatewayKey, SharedSymmetricKey,
+    BinaryRequest, ClientControlRequest, ClientRequest, SensitiveServerResponse, ServerResponse,
+    SharedGatewayKey, SharedSymmetricKey, AES_GCM_SIV_PROTOCOL_VERSION,
    CREDENTIAL_UPDATE_V2_PROTOCOL_VERSION, CURRENT_PROTOCOL_VERSION,
 };
 use nym_sphinx::forwarding::packet::MixPacket;
@@ -563,10 +563,28 @@ impl<C, St> GatewayClient<C, St> {
        Ok(zeroizing_updated_key)
    }

-    async fn send_authenticate_request_and_handle_response(
-        &mut self,
-        msg: ClientControlRequest,
-    ) -> Result<(), GatewayClientError> {
+    async fn authenticate(&mut self) -> Result<(), GatewayClientError> {
+        let Some(shared_key) = self.shared_key.as_ref() else {
+            return Err(GatewayClientError::NoSharedKeyAvailable);
+        };
+
+        if !self.connection.is_established() {
+            return Err(GatewayClientError::ConnectionNotEstablished);
+        }
+        debug!("authenticating with gateway");
+
+        let self_address = self
+            .local_identity
+            .as_ref()
+            .public_key()
+            .derive_destination_address();
+
+        let msg = ClientControlRequest::new_authenticate(
+            self_address,
+            shared_key,
+            self.cfg.bandwidth.require_tickets,
+        )?;
+
        match self.send_websocket_message(msg).await? {
            ServerResponse::Authenticate {
                protocol_version,
@@ -590,51 +608,6 @@ impl<C, St> GatewayClient<C, St> {
        }
    }

-    async fn authenticate_v1(&mut self) -> Result<(), GatewayClientError> {
-        debug!("using v1 authentication");
-
-        let Some(shared_key) = self.shared_key.as_ref() else {
-            return Err(GatewayClientError::NoSharedKeyAvailable);
-        };
-
-        let self_address = self
-            .local_identity
-            .public_key()
-            .derive_destination_address();
-
-        let msg = ClientControlRequest::new_authenticate(
-            self_address,
-            shared_key,
-            self.cfg.bandwidth.require_tickets,
-        )?;
-        self.send_authenticate_request_and_handle_response(msg)
-            .await
-    }
-
-    async fn authenticate_v2(&mut self) -> Result<(), GatewayClientError> {
-        debug!("using v2 authentication");
-        let Some(shared_key) = self.shared_key.as_ref() else {
-            return Err(GatewayClientError::NoSharedKeyAvailable);
-        };
-
-        let msg = ClientControlRequest::new_authenticate_v2(shared_key, &self.local_identity)?;
-        self.send_authenticate_request_and_handle_response(msg)
-            .await
-    }
-
-    async fn authenticate(&mut self, use_v2: bool) -> Result<(), GatewayClientError> {
-        if !self.connection.is_established() {
-            return Err(GatewayClientError::ConnectionNotEstablished);
-        }
-        debug!("authenticating with gateway");
-
-        if use_v2 {
-            self.authenticate_v2().await
-        } else {
-            self.authenticate_v1().await
-        }
-    }
-
    /// Helper method to either call register or authenticate based on self.shared_key value
    #[instrument(skip_all,
        fields(
@@ -650,25 +623,19 @@ impl<C, St> GatewayClient<C, St> {
        }

        // 1. check gateway's protocol version
-        let gw_protocol = match self.get_gateway_protocol().await {
-            Ok(protocol) => Some(protocol),
+        let supports_aes_gcm_siv = match self.get_gateway_protocol().await {
+            Ok(protocol) => protocol >= AES_GCM_SIV_PROTOCOL_VERSION,
            Err(_) => {
                // if we failed to send the request, it means the gateway is running the old binary,
                // so it has reset our connection - we have to reconnect
                self.establish_connection().await?;
-                None
+                false
            }
        };

-        let supports_aes_gcm_siv = gw_protocol.supports_aes256_gcm_siv();
-        let supports_auth_v2 = gw_protocol.supports_authenticate_v2();
-
        if !supports_aes_gcm_siv {
            warn!("this gateway is on an old version that doesn't support AES256-GCM-SIV");
        }
-        if !supports_auth_v2 {
-            warn!("this gateway is on an old version that doesn't support authentication v2")
-        }

        if self.authenticated {
            debug!("Already authenticated");
@@ -683,7 +650,7 @@ impl<C, St> GatewayClient<C, St> {
        }

        if self.shared_key.is_some() {
-            self.authenticate(supports_auth_v2).await?;
+            self.authenticate().await?;

            if self.authenticated {
                // if we are authenticated it means we MUST have an associated shared_key
@@ -1016,8 +983,7 @@ impl<C, St> GatewayClient<C, St> {
        }

        // if we're reconnecting, because we lost connection, we need to re-authenticate the connection
-        self.authenticate(self.negotiated_protocol.supports_authenticate_v2())
-            .await?;
+        self.authenticate().await?;

        // this call is NON-blocking
        self.start_listening_for_mixnet_messages()?;
@@ -56,7 +56,7 @@ cw4 = { workspace = true }
 cw-controllers = { workspace = true }
 prost = { workspace = true, default-features = false }
 flate2 = { workspace = true }
-sha2 = { workspace = true }
+sha2 = { version = "0.9.5" }
 itertools = { workspace = true }
 zeroize = { workspace = true, features = ["zeroize_derive"] }
 cosmwasm-std = { workspace = true }
@@ -23,12 +23,11 @@ use nym_api_requests::models::{
    NymNodeDescription, RewardEstimationResponse, StakeSaturationResponse,
 };
 use nym_api_requests::models::{LegacyDescribedGateway, MixNodeBondAnnotated};
-use nym_api_requests::nym_nodes::{NodesByAddressesResponse, SkimmedNode};
+use nym_api_requests::nym_nodes::SkimmedNode;
 use nym_coconut_dkg_common::types::EpochId;
 use nym_ecash_contract_common::deposit::DepositId;
 use nym_http_api_client::UserAgent;
 use nym_network_defaults::NymNetworkDetails;
-use std::net::IpAddr;
 use time::Date;
 use url::Url;

@@ -711,11 +710,4 @@ impl NymApiClient {
            .issued_ticketbooks_challenge(expiration_date, deposits)
            .await?)
    }
-
-    pub async fn nodes_by_addresses(
-        &self,
-        addresses: Vec<IpAddr>,
-    ) -> Result<NodesByAddressesResponse, ValidatorClientError> {
-        Ok(self.nym_api.nodes_by_addresses(addresses).await?)
-    }
 }
@@ -83,12 +83,6 @@ impl TryFrom<ContractVKShare> for EcashApiClient {

        let url_address = Url::parse(&share.announce_address)?;

-        // The NymApiClient constructed here uses the default (hickory DoT/DoH) resolver because
-        // this EcashApiClient is used by both client and non-client applications.
-        //
-        // In non-client applications this resolver can cause warning logs about H2 connection
-        // failure. This indicates that the long lived https connection was closed by the remote
-        // peer and the resolver will have to reconnect. It should not impact actual functionality
        Ok(EcashApiClient {
            api_client: NymApiClient::new(url_address),
            verification_key: VerificationKeyAuth::try_from_bs58(&share.share)?,
@@ -12,13 +12,10 @@ use nym_api_requests::ecash::models::{
 };
 use nym_api_requests::ecash::VerificationKeyResponse;
 use nym_api_requests::models::{
-    AnnotationResponse, ApiHealthResponse, BinaryBuildInformationOwned, ChainStatusResponse,
-    LegacyDescribedMixNode, NodePerformanceResponse, NodeRefreshBody, NymNodeDescription,
-    PerformanceHistoryResponse, RewardedSetResponse,
-};
-use nym_api_requests::nym_nodes::{
-    NodesByAddressesRequestBody, NodesByAddressesResponse, PaginatedCachedNodesResponse,
+    AnnotationResponse, ApiHealthResponse, LegacyDescribedMixNode, NodePerformanceResponse,
+    NodeRefreshBody, NymNodeDescription, PerformanceHistoryResponse, RewardedSetResponse,
 };
+use nym_api_requests::nym_nodes::PaginatedCachedNodesResponse;
 use nym_api_requests::pagination::PaginatedResponse;
 pub use nym_api_requests::{
    ecash::{
@@ -43,7 +40,6 @@ pub use nym_http_api_client::Client;
 use nym_http_api_client::{ApiClient, NO_PARAMS};
 use nym_mixnet_contract_common::mixnode::MixNodeDetails;
 use nym_mixnet_contract_common::{GatewayBond, IdentityKeyRef, NodeId, NymNodeDetails};
-use std::net::IpAddr;
 use time::format_description::BorrowedFormatItem;
 use time::Date;
 use tracing::instrument;
@@ -70,19 +66,6 @@ pub trait NymApiClientExt: ApiClient {
        .await
    }

-    #[instrument(level = "debug", skip(self))]
-    async fn build_information(&self) -> Result<BinaryBuildInformationOwned, NymAPIError> {
-        self.get_json(
-            &[
-                routes::API_VERSION,
-                routes::API_STATUS_ROUTES,
-                routes::BUILD_INFORMATION,
-            ],
-            NO_PARAMS,
-        )
-        .await
-    }
-
    #[deprecated]
    #[instrument(level = "debug", skip(self))]
    async fn get_mixnodes(&self) -> Result<Vec<MixNodeDetails>, NymAPIError> {
@@ -1032,23 +1015,6 @@ pub trait NymApiClientExt: ApiClient {
        .await
    }

-    async fn nodes_by_addresses(
-        &self,
-        addresses: Vec<IpAddr>,
-    ) -> Result<NodesByAddressesResponse, NymAPIError> {
-        self.post_json(
-            &[
-                routes::API_VERSION,
-                "unstable",
-                routes::NYM_NODES_ROUTES,
-                routes::nym_nodes::BY_ADDRESSES,
-            ],
-            NO_PARAMS,
-            &NodesByAddressesRequestBody { addresses },
-        )
-        .await
-    }
-
    #[instrument(level = "debug", skip(self))]
    async fn get_network_details(&self) -> Result<NymNetworkDetailsResponse, NymAPIError> {
        self.get_json(
@@ -1057,15 +1023,6 @@ pub trait NymApiClientExt: ApiClient {
        )
        .await
    }
-
-    #[instrument(level = "debug", skip(self))]
-    async fn get_chain_status(&self) -> Result<ChainStatusResponse, NymAPIError> {
-        self.get_json(
-            &[routes::API_VERSION, routes::NETWORK, routes::CHAIN_STATUS],
-            NO_PARAMS,
-        )
-        .await
-    }
 }

 #[cfg_attr(target_arch = "wasm32", async_trait(?Send))]
@@ -43,14 +43,11 @@ pub mod nym_nodes {
    pub const NYM_NODES_BONDED: &str = "bonded";
    pub const NYM_NODES_REWARDED_SET: &str = "rewarded-set";
    pub const NYM_NODES_REFRESH_DESCRIBED: &str = "refresh-described";
-    pub const BY_ADDRESSES: &str = "by-addresses";
 }

 pub const STATUS_ROUTES: &str = "status";
 pub const API_STATUS_ROUTES: &str = "api-status";
 pub const HEALTH: &str = "health";
-pub const BUILD_INFORMATION: &str = "build-information";
-
 pub const MIXNODE: &str = "mixnode";
 pub const GATEWAY: &str = "gateway";
 pub const NYM_NODES: &str = "nym-nodes";
@@ -72,5 +69,4 @@ pub const SUBMIT_NODE: &str = "submit-node-monitoring-results";
 pub const SERVICE_PROVIDERS: &str = "services";

 pub const DETAILS: &str = "details";
-pub const CHAIN_STATUS: &str = "chain-status";
 pub const NETWORK: &str = "network";
@@ -28,6 +28,7 @@ use nym_network_defaults::{ChainDetails, NymNetworkDetails};
 use serde::{de::DeserializeOwned, Serialize};
 use std::fmt::Debug;
 use std::time::SystemTime;
+use tendermint_rpc::endpoint::block::Response as BlockResponse;
 use tendermint_rpc::endpoint::*;
 use tendermint_rpc::{Error as TendermintRpcError, Order};
 use url::Url;
@@ -62,8 +63,6 @@ pub use cw3;
 pub use cw4;
 pub use cw_controllers;
 pub use fee::{gas_price::GasPrice, GasAdjustable, GasAdjustment};
-pub use prost::Name;
-pub use tendermint_rpc::endpoint::block::Response as BlockResponse;
 pub use tendermint_rpc::{
    endpoint::{tx::Response as TxResponse, validators::Response as ValidatorResponse},
    query::Query,
@@ -25,6 +25,15 @@ pub fn in6addr_any_init() -> IpAddr {
    IpAddr::V6(Ipv6Addr::UNSPECIFIED)
 }

+/// Helper for providing binding warnings if node tries to bind to any of those
+pub const SPECIAL_ADDRESSES: &[IpAddr] = &[
+    IpAddr::V4(Ipv4Addr::LOCALHOST),
+    IpAddr::V4(Ipv4Addr::UNSPECIFIED),
+    IpAddr::V4(Ipv4Addr::BROADCAST),
+    IpAddr::V6(Ipv6Addr::LOCALHOST),
+    IpAddr::V6(Ipv6Addr::UNSPECIFIED),
+];
+
 // TODO: is it really part of 'Config'?
 pub trait OptionalSet {
    /// If the value is available (i.e. `Some`), the provided closure is applied.
@@ -37,13 +37,11 @@ nym-pemstore = { path = "../../common/pemstore", version = "0.3.0" }
 rand_chacha = { workspace = true }

 [features]
-default = []
+default = ["sphinx"]
 aead = ["dep:aead", "aead/std", "aes-gcm-siv", "generic-array"]
 serde = ["dep:serde", "serde_bytes", "ed25519-dalek/serde", "x25519-dalek/serde"]
 asymmetric = ["x25519-dalek", "ed25519-dalek", "zeroize"]
 hashing = ["blake3", "digest", "hkdf", "hmac", "generic-array", "sha2"]
 stream_cipher = ["aes", "ctr", "cipher", "generic-array"]
 sphinx = ["nym-sphinx-types/sphinx"]
-
-[lints]
-workspace = true
+outfox = ["nym-sphinx-types/outfox"]
@@ -202,18 +202,6 @@ impl PemStorableKey for PublicKey {
    }
 }

-impl From<x25519_dalek::PublicKey> for PublicKey {
-    fn from(public_key: x25519_dalek::PublicKey) -> Self {
-        PublicKey(public_key)
-    }
-}
-
-impl From<PublicKey> for x25519_dalek::PublicKey {
-    fn from(public_key: PublicKey) -> Self {
-        public_key.0
-    }
-}
-
 #[derive(Zeroize, ZeroizeOnDrop)]
 pub struct PrivateKey(x25519_dalek::StaticSecret);

@@ -320,15 +308,109 @@ impl PemStorableKey for PrivateKey {
    }
 }

-impl From<x25519_dalek::StaticSecret> for PrivateKey {
-    fn from(secret: x25519_dalek::StaticSecret) -> Self {
-        PrivateKey(secret)
+// compatibility with sphinx keys:
+#[cfg(feature = "sphinx")]
+impl From<PublicKey> for nym_sphinx_types::PublicKey {
+    fn from(key: PublicKey) -> Self {
+        nym_sphinx_types::PublicKey::from(key.to_bytes())
    }
 }

-impl AsRef<x25519_dalek::StaticSecret> for PrivateKey {
-    fn as_ref(&self) -> &x25519_dalek::StaticSecret {
-        &self.0
+#[cfg(feature = "sphinx")]
+impl<'a> From<&'a PublicKey> for nym_sphinx_types::PublicKey {
+    fn from(key: &'a PublicKey) -> Self {
+        nym_sphinx_types::PublicKey::from((*key).to_bytes())
+    }
+}
+
+#[cfg(feature = "sphinx")]
+impl From<nym_sphinx_types::PublicKey> for PublicKey {
+    fn from(pub_key: nym_sphinx_types::PublicKey) -> Self {
+        Self(x25519_dalek::PublicKey::from(*pub_key.as_bytes()))
+    }
+}
+
+#[cfg(feature = "sphinx")]
+impl From<PrivateKey> for nym_sphinx_types::PrivateKey {
+    fn from(key: PrivateKey) -> Self {
+        nym_sphinx_types::PrivateKey::from(key.to_bytes())
+    }
+}
+
+#[cfg(feature = "sphinx")]
+impl<'a> From<&'a PrivateKey> for nym_sphinx_types::PrivateKey {
+    fn from(key: &'a PrivateKey) -> Self {
+        nym_sphinx_types::PrivateKey::from(key.to_bytes())
+    }
+}
+
+#[cfg(feature = "sphinx")]
+impl From<nym_sphinx_types::PrivateKey> for PrivateKey {
+    fn from(private_key: nym_sphinx_types::PrivateKey) -> Self {
+        let private_key_bytes = private_key.to_bytes();
+        assert_eq!(private_key_bytes.len(), PRIVATE_KEY_SIZE);
+        Self::from_bytes(&private_key_bytes).unwrap()
+    }
+}
+
+#[cfg(test)]
+mod sphinx_key_conversion {
+    use super::*;
+    use rand_chacha::rand_core::SeedableRng;
+    use rand_chacha::ChaCha20Rng;
+
+    pub(super) fn test_rng() -> ChaCha20Rng {
+        let dummy_seed = [42u8; 32];
+        ChaCha20Rng::from_seed(dummy_seed)
+    }
+
+    const NUM_ITERATIONS: usize = 100;
+
+    #[test]
+    fn works_for_forward_conversion() {
+        let mut rng = test_rng();
+
+        for _ in 0..NUM_ITERATIONS {
+            let keys = KeyPair::new(&mut rng);
+            let private = &keys.private_key;
+            let public = &keys.public_key;
+
+            let dummy_remote = KeyPair::new(&mut rng);
+            let dh1 = private.diffie_hellman(&dummy_remote.public_key);
+
+            let public_bytes = public.to_bytes();
+
+            let sphinx_private: nym_sphinx_types::PrivateKey = private.into();
+            let recovered_private = PrivateKey::from(sphinx_private);
+
+            let dh2 = recovered_private.diffie_hellman(&dummy_remote.public_key);
+
+            let sphinx_public: nym_sphinx_types::PublicKey = public.into();
+            let recovered_public = PublicKey::from(sphinx_public);
+            assert_eq!(public_bytes, recovered_public.to_bytes());
+
+            // even though the byte representation of the private key changed, the resultant DH is the same
+            // which is what matters
+            assert_eq!(dh1, dh2);
+        }
+    }
+
+    #[test]
+    fn works_for_backward_conversion() {
+        for _ in 0..NUM_ITERATIONS {
+            let (sphinx_private, sphinx_public) = nym_sphinx_types::crypto::keygen();
+
+            let private_bytes = sphinx_private.to_bytes();
+            let public_bytes = sphinx_public.as_bytes();
+
+            let private: PrivateKey = sphinx_private.into();
+            let recovered_sphinx_private: nym_sphinx_types::PrivateKey = private.into();
+
+            let public: PublicKey = sphinx_public.into();
+            let recovered_sphinx_public: nym_sphinx_types::PublicKey = public.into();
+            assert_eq!(private_bytes, recovered_sphinx_private.to_bytes());
+            assert_eq!(public_bytes, recovered_sphinx_public.as_bytes());
+        }
    }
 }

@@ -16,11 +16,8 @@ pub fn compute_keyed_hmac<D>(key: &[u8], data: &[u8]) -> HmacOutput<D>
 where
    D: Digest + BlockSizeUser,
 {
-    // SAFETY: hmac is fine with keys of any size; if they're smaller than the block size of the underlying
-    // digest, they're padded with 0. if they're larger they're hashed and padded
-    // the reason for `Result` return type is due to the trait definition
-    #[allow(clippy::unwrap_used)]
-    let mut hmac = SimpleHmac::<D>::new_from_slice(key).unwrap();
+    let mut hmac = SimpleHmac::<D>::new_from_slice(key)
+        .expect("HMAC was instantiated with a key of an invalid size!");
    hmac.update(data);
    hmac.finalize()
 }
@@ -30,11 +27,8 @@ pub fn recompute_keyed_hmac_and_verify_tag<D>(key: &[u8], data: &[u8], tag: &[u8
 where
    D: Digest + BlockSizeUser,
 {
-    // SAFETY: hmac is fine with keys of any size; if they're smaller than the block size of the underlying
-    // digest, they're padded with 0. if they're larger they're hashed and padded
-    // the reason for `Result` return type is due to the trait definition
-    #[allow(clippy::unwrap_used)]
-    let mut hmac = SimpleHmac::<D>::new_from_slice(key).unwrap();
+    let mut hmac = SimpleHmac::<D>::new_from_slice(key)
+        .expect("HMAC was instantiated with a key of an invalid size!");
    hmac.update(data);

    let tag_arr = Output::<D>::from_slice(tag);
@@ -27,16 +27,12 @@ where
    // after performing diffie-hellman we don't care about the private component anymore
    let dh_result = ephemeral_keypair.private_key().diffie_hellman(remote_key);

-    // SAFETY: while this is a relatively weak assumption, it's unlikely that any stream cipher has `C::key_size()`
-    // larger than 255 * chunk_size of the digest (so for example keys larger than 8160 bytes if sh256 is used)
-    #[allow(clippy::expect_used)]
+    // there is no reason for this to fail as our okm is expected to be only C::KeySize bytes
    let okm = hkdf::extract_then_expand::<D>(None, &dh_result, None, C::key_size())
        .expect("somehow too long okm was provided");

-    // SAFETY: the generated okm has exactly `C::key_size()` elements,
-    // so this call is safe
-    #[allow(clippy::unwrap_used)]
-    let derived_shared_key = Key::<C>::from_exact_iter(okm).unwrap();
+    let derived_shared_key =
+        Key::<C>::from_exact_iter(okm).expect("okm was expanded to incorrect length!");

    (ephemeral_keypair, derived_shared_key)
 }
@@ -52,14 +48,9 @@ where
 {
    let dh_result = local_key.diffie_hellman(remote_key);

-    // SAFETY: while this is a relatively weak assumption, it's unlikely that any stream cipher has `C::key_size()`
-    // larger than 255 * chunk_size of the digest (so for example keys larger than 8160 bytes if sh256 is used)
-    #[allow(clippy::expect_used)]
+    // there is no reason for this to fail as our okm is expected to be only C::KeySize bytes
    let okm = hkdf::extract_then_expand::<D>(None, &dh_result, None, C::key_size())
        .expect("somehow too long okm was provided");

-    // SAFETY: the generated okm has exactly `C::key_size()` elements,
-    // so this call is safe
-    #[allow(clippy::unwrap_used)]
-    Key::<C>::from_exact_iter(okm).unwrap()
+    Key::<C>::from_exact_iter(okm).expect("okm was expanded to incorrect length!")
 }
@@ -60,15 +60,20 @@ where
    Iv::<C>::default()
 }

-pub fn try_iv_from_slice<C>(b: &[u8]) -> Option<&IV<C>>
+pub fn iv_from_slice<C>(b: &[u8]) -> &IV<C>
 where
    C: IvSizeUser,
 {
    if b.len() != C::iv_size() {
-        None
-    } else {
-        Some(IV::<C>::from_slice(b))
+        // `from_slice` would have caused a panic about this issue anyway.
+        // Now we at least have slightly more information
+        panic!(
+            "Tried to convert {} bytes to IV. Expected {}",
+            b.len(),
+            C::iv_size()
+        )
    }
+    IV::<C>::from_slice(b)
 }

 // TODO: there's really no way to use more parts of the keystream if it was required at some point.
@@ -21,7 +21,7 @@ lazy_static = { workspace = true }
 rand = { workspace = true }
 rand_chacha = { workspace = true }
 rand_core = { workspace = true }
-sha2 = { workspace = true }
+sha2 = "0.9"
 serde = { workspace = true }
 serde_derive = { workspace = true }
 thiserror = { workspace = true }
@@ -54,12 +54,12 @@ pub(crate) fn hash_to_scalar<M: AsRef<[u8]>>(msg: M, domain: &[u8]) -> Scalar {
 pub(crate) fn hash_to_scalars<M: AsRef<[u8]>>(msg: M, domain: &[u8], n: usize) -> Vec<Scalar> {
    let mut output = vec![Scalar::zero(); n];

-    Scalar::hash_to_field::<ExpandMsgXmd<Sha256>, _>([msg], domain, &mut output);
+    Scalar::hash_to_field::<ExpandMsgXmd<Sha256>>(msg.as_ref(), domain, &mut output);
    output
 }

 pub(crate) fn hash_g2<M: AsRef<[u8]>>(msg: M, domain: &[u8]) -> G2Projective {
-    <G2Projective as HashToCurve<ExpandMsgXmd<Sha256>>>::hash_to_curve([msg], domain)
+    <G2Projective as HashToCurve<ExpandMsgXmd<Sha256>>>::hash_to_curve(msg, domain)
 }

 pub(crate) fn combine_scalar_chunks(chunks: &[Scalar]) -> Scalar {
@@ -112,97 +112,3 @@ pub(crate) fn deserialize_g2(b: &[u8]) -> Option<G2Projective> {
        G2Projective::from_bytes(&encoding).into()
    }
 }
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-    use bls12_381::G2Affine;
-
-    #[test]
-    fn test_hash_to_scalar() {
-        let msg1 = "foo";
-        let expected1 = Scalar::from_bytes(&[
-            253, 57, 224, 227, 175, 195, 226, 82, 46, 175, 33, 126, 171, 239, 255, 92, 108, 168, 6,
-            79, 90, 11, 235, 236, 221, 10, 85, 133, 42, 81, 95, 30,
-        ])
-        .unwrap();
-
-        let msg2 = "bar";
-        let expected2 = Scalar::from_bytes(&[
-            48, 83, 69, 52, 42, 18, 135, 244, 211, 190, 160, 196, 118, 154, 24, 126, 0, 125, 72,
-            201, 170, 225, 123, 201, 52, 120, 171, 132, 235, 182, 20, 26,
-        ])
-        .unwrap();
-
-        let msg3 = [
-            33, 135, 76, 234, 71, 35, 247, 216, 39, 242, 42, 88, 152, 29, 74, 135, 9, 29, 216, 123,
-            250, 87, 108, 29, 245, 126, 109, 102, 84, 71, 158, 224, 145, 243, 49, 121, 244, 27,
-            115, 121, 25, 66, 216, 67, 97, 101, 140, 160, 77, 239, 114, 215, 152, 48, 15, 231, 101,
-            60, 42, 92, 128, 131, 161, 43,
-        ];
-        let expected3 = Scalar::from_bytes(&[
-            128, 189, 8, 43, 186, 55, 52, 61, 171, 196, 159, 177, 162, 100, 27, 143, 85, 83, 218,
-            171, 91, 220, 155, 25, 7, 38, 2, 36, 4, 93, 136, 4,
-        ])
-        .unwrap();
-
-        assert_eq!(
-            hash_to_scalar(msg1, b"NYMECASH-V01-CS02-with-expander-SHA256"),
-            expected1
-        );
-        assert_eq!(
-            hash_to_scalar(msg2, b"NYMECASH-V01-CS02-with-expander-SHA256"),
-            expected2
-        );
-        assert_eq!(
-            hash_to_scalar(msg3, b"NYMECASH-V01-CS02-with-expander-SHA256"),
-            expected3
-        );
-    }
-
-    #[test]
-    fn test_hash_g2() {
-        let msg1 = "foo";
-        let expected1 = G2Affine::from_compressed(&[
-            175, 187, 62, 7, 29, 17, 42, 93, 28, 93, 234, 253, 101, 166, 158, 187, 153, 82, 93, 18,
-            11, 233, 36, 107, 51, 117, 30, 127, 32, 254, 210, 77, 133, 12, 253, 255, 84, 128, 36,
-            214, 234, 103, 50, 21, 26, 78, 112, 49, 20, 69, 19, 109, 7, 78, 33, 227, 196, 180, 168,
-            219, 73, 251, 192, 221, 41, 138, 160, 131, 191, 186, 156, 117, 179, 179, 191, 235, 171,
-            26, 219, 148, 170, 179, 11, 38, 137, 14, 95, 115, 171, 186, 163, 82, 158, 6, 239, 88,
-        ])
-        .unwrap()
-        .into();
-
-        let msg2 = "bar";
-        let expected2 = G2Affine::from_compressed(&[
-            183, 25, 90, 187, 34, 184, 30, 182, 215, 242, 158, 83, 116, 34, 210, 96, 188, 79, 83,
-            255, 100, 122, 90, 188, 196, 93, 164, 253, 20, 106, 205, 33, 48, 140, 60, 149, 66, 246,
-            121, 244, 146, 66, 170, 60, 113, 95, 102, 237, 25, 231, 8, 42, 121, 124, 180, 140, 34,
-            104, 173, 251, 89, 189, 28, 196, 49, 66, 101, 38, 68, 44, 40, 235, 21, 35, 204, 123,
-            218, 238, 216, 92, 134, 217, 212, 246, 176, 77, 187, 0, 245, 134, 132, 73, 31, 44, 137,
-            197,
-        ])
-        .unwrap()
-        .into();
-        let msg3 = [
-            33, 135, 76, 234, 71, 35, 247, 216, 39, 242, 42, 88, 152, 29, 74, 135, 9, 29, 216, 123,
-            250, 87, 108, 29, 245, 126, 109, 102, 84, 71, 158, 224, 145, 243, 49, 121, 244, 27,
-            115, 121, 25, 66, 216, 67, 97, 101, 140, 160, 77, 239, 114, 215, 152, 48, 15, 231, 101,
-            60, 42, 92, 128, 131, 161, 43,
-        ];
-        let expected3 = G2Affine::from_compressed(&[
-            151, 185, 8, 123, 223, 150, 192, 192, 115, 10, 3, 129, 49, 179, 31, 108, 0, 17, 46,
-            231, 184, 164, 247, 228, 22, 142, 87, 70, 120, 111, 154, 15, 245, 110, 32, 84, 53, 117,
-            239, 93, 89, 119, 32, 17, 39, 250, 198, 137, 6, 95, 137, 202, 54, 244, 238, 190, 11,
-            217, 237, 95, 72, 59, 140, 56, 3, 42, 61, 195, 192, 101, 46, 204, 207, 75, 70, 176,
-            207, 48, 24, 195, 248, 234, 178, 168, 54, 109, 19, 189, 51, 52, 120, 69, 248, 226, 102,
-            91,
-        ])
-        .unwrap()
-        .into();
-
-        assert_eq!(hash_g2(msg1, b"DUMMY_TEST_DOMAIN"), expected1);
-        assert_eq!(hash_g2(msg2, b"DUMMY_TEST_DOMAIN"), expected2);
-        assert_eq!(hash_g2(msg3, b"DUMMY_TEST_DOMAIN"), expected3);
-    }
-}
@@ -20,14 +20,11 @@ serde_json = { workspace = true }
 strum = { workspace = true }
 thiserror = { workspace = true }
 tracing = { workspace = true, features = ["log"] }
-time = { workspace = true }
-subtle = { workspace = true }
 zeroize = { workspace = true }

 nym-crypto = { path = "../crypto", features = ["aead", "hashing"] }
 nym-pemstore = { path = "../pemstore" }
 nym-sphinx = { path = "../nymsphinx" }
-nym-serde-helpers = { path = "../serde-helpers", features = ["base64"] }
 nym-task = { path = "../task" }

 nym-credentials = { path = "../credentials" }
@@ -15,12 +15,6 @@ use thiserror::Error;
 // this is no longer constant size due to the differences in ciphertext between aes128ctr and aes256gcm-siv (inclusion of tag)
 pub struct EncryptedAddressBytes(Vec<u8>);

-impl From<Vec<u8>> for EncryptedAddressBytes {
-    fn from(encrypted_address: Vec<u8>) -> Self {
-        EncryptedAddressBytes(encrypted_address)
-    }
-}
-
 #[derive(Debug, Error)]
 pub enum EncryptedAddressConversionError {
    #[error("Failed to decode the encrypted address - {0}")]
@@ -19,7 +19,7 @@ pub use shared_key::{
    SharedGatewayKey, SharedKeyConversionError, SharedKeyUsageError, SharedSymmetricKey,
 };

-pub const CURRENT_PROTOCOL_VERSION: u8 = AUTHENTICATE_V2_PROTOCOL_VERSION;
+pub const CURRENT_PROTOCOL_VERSION: u8 = AES_GCM_SIV_PROTOCOL_VERSION;

 /// Defines the current version of the communication protocol between gateway and clients.
 /// It has to be incremented for any breaking change.
@@ -27,29 +27,10 @@ pub const CURRENT_PROTOCOL_VERSION: u8 = AUTHENTICATE_V2_PROTOCOL_VERSION;
 // 1 - initial release
 // 2 - changes to client credentials structure
 // 3 - change to AES-GCM-SIV and non-zero IVs
-// 4 - introduction of v2 authentication protocol to prevent reply attacks
 pub const INITIAL_PROTOCOL_VERSION: u8 = 1;
 pub const CREDENTIAL_UPDATE_V2_PROTOCOL_VERSION: u8 = 2;
 pub const AES_GCM_SIV_PROTOCOL_VERSION: u8 = 3;
-pub const AUTHENTICATE_V2_PROTOCOL_VERSION: u8 = 4;

 // TODO: could using `Mac` trait here for OutputSize backfire?
 // Should hmac itself be exposed, imported and used instead?
 pub type LegacyGatewayMacSize = <GatewayIntegrityHmacAlgorithm as OutputSizeUser>::OutputSize;
-
-pub trait GatewayProtocolVersionExt {
-    fn supports_aes256_gcm_siv(&self) -> bool;
-    fn supports_authenticate_v2(&self) -> bool;
-}
-
-impl GatewayProtocolVersionExt for Option<u8> {
-    fn supports_aes256_gcm_siv(&self) -> bool {
-        let Some(protocol) = *self else { return false };
-        protocol >= AES_GCM_SIV_PROTOCOL_VERSION
-    }
-
-    fn supports_authenticate_v2(&self) -> bool {
-        let Some(protocol) = *self else { return false };
-        protocol >= AUTHENTICATE_V2_PROTOCOL_VERSION
-    }
-}
@@ -3,14 +3,12 @@

 use crate::SharedKeyUsageError;
 use nym_credentials_interface::CompactEcashError;
-use nym_crypto::asymmetric::ed25519::SignatureError;
 use nym_sphinx::addressing::nodes::NymNodeRoutingAddressError;
 use nym_sphinx::forwarding::packet::MixPacketFormattingError;
 use nym_sphinx::params::packet_sizes::PacketSize;
 use serde::{Deserialize, Serialize};
 use std::string::FromUtf8Error;
 use thiserror::Error;
-use time::OffsetDateTime;

 // specific errors (that should not be nested!!) for clients to match on
 #[derive(Debug, Copy, Clone, Error, Serialize, Deserialize)]
@@ -94,34 +92,7 @@ pub enum GatewayRequestsError {
    #[error("the provided [v1] credential has invalid number of parameters - {0}")]
    InvalidNumberOfEmbededParameters(u32),

-    #[error("failed to authenticate the client: {0}")]
-    Authentication(#[from] AuthenticationFailure),
-
    // variant to catch legacy errors
    #[error("{0}")]
    Other(String),
 }
-
-#[derive(Debug, Error)]
-pub enum AuthenticationFailure {
-    #[error(transparent)]
-    KeyUsageFailure(#[from] SharedKeyUsageError),
-
-    #[error("failed to verify provided address ciphertext")]
-    MalformedCiphertext,
-
-    #[error("failed to verify request signature")]
-    InvalidSignature(#[from] SignatureError),
-
-    #[error("the client is not registered")]
-    NotRegistered,
-
-    #[error("the provided request timestamp is excessively skewed. got {received} whilst the server time is {server}")]
-    ExcessiveTimestampSkew {
-        received: OffsetDateTime,
-        server: OffsetDateTime,
-    },
-
-    #[error("the provided request timestamp is smaller or equal to one previously used")]
-    RequestReuse,
-}
@@ -2,21 +2,16 @@
 // SPDX-License-Identifier: Apache-2.0

 use crate::models::CredentialSpendingRequest;
-use crate::text_request::authenticate::AuthenticateRequest;
 use crate::{
    GatewayRequestsError, SharedGatewayKey, SymmetricKey, AES_GCM_SIV_PROTOCOL_VERSION,
-    AUTHENTICATE_V2_PROTOCOL_VERSION, CREDENTIAL_UPDATE_V2_PROTOCOL_VERSION,
-    INITIAL_PROTOCOL_VERSION,
+    CREDENTIAL_UPDATE_V2_PROTOCOL_VERSION, INITIAL_PROTOCOL_VERSION,
 };
 use nym_credentials_interface::CredentialSpendingData;
-use nym_crypto::asymmetric::ed25519;
 use nym_sphinx::DestinationAddressBytes;
 use serde::{Deserialize, Serialize};
 use std::str::FromStr;
 use tungstenite::Message;

-pub mod authenticate;
-
 // wrapper for all encrypted requests for ease of use
 #[derive(Serialize, Deserialize, Debug, Clone)]
 #[non_exhaustive]
@@ -73,9 +68,6 @@ pub enum ClientControlRequest {
        enc_address: String,
        iv: String,
    },
-
-    AuthenticateV2(Box<AuthenticateRequest>),
-
    #[serde(alias = "handshakePayload")]
    RegisterHandshakeInitRequest {
        #[serde(default)]
@@ -131,22 +123,9 @@ impl ClientControlRequest {
        })
    }

-    pub fn new_authenticate_v2(
-        shared_key: &SharedGatewayKey,
-        identity_keys: &ed25519::KeyPair,
-    ) -> Result<Self, GatewayRequestsError> {
-        // if we're using v2 authentication, we must announce at least that protocol version
-        let protocol_version = AUTHENTICATE_V2_PROTOCOL_VERSION;
-
-        Ok(ClientControlRequest::AuthenticateV2(Box::new(
-            AuthenticateRequest::new(protocol_version, shared_key, identity_keys)?,
-        )))
-    }
-
    pub fn name(&self) -> String {
        match self {
            ClientControlRequest::Authenticate { .. } => "Authenticate".to_string(),
-            ClientControlRequest::AuthenticateV2(..) => "AuthenticateV2".to_string(),
            ClientControlRequest::RegisterHandshakeInitRequest { .. } => {
                "RegisterHandshakeInitRequest".to_string()
            }
@@ -1,151 +0,0 @@
-// Copyright 2025 - Nym Technologies SA <contact@nymtech.net>
-// SPDX-License-Identifier: GPL-3.0-only
-
-use crate::{AuthenticationFailure, GatewayRequestsError, SharedGatewayKey};
-use nym_crypto::asymmetric::ed25519;
-use serde::{Deserialize, Serialize};
-use std::iter;
-use std::time::Duration;
-use subtle::ConstantTimeEq;
-use time::OffsetDateTime;
-
-#[derive(Serialize, Deserialize, Debug)]
-#[serde(rename_all = "camelCase")]
-pub struct AuthenticateRequest {
-    #[serde(flatten)]
-    pub content: AuthenticateRequestContent,
-
-    pub request_signature: ed25519::Signature,
-}
-
-impl AuthenticateRequest {
-    pub fn new(
-        protocol_version: u8,
-        shared_key: &SharedGatewayKey,
-        identity_keys: &ed25519::KeyPair,
-    ) -> Result<AuthenticateRequest, GatewayRequestsError> {
-        let content = AuthenticateRequestContent::new(
-            protocol_version,
-            shared_key,
-            *identity_keys.public_key(),
-        )?;
-        let plaintext = content.plaintext();
-        let request_signature = identity_keys.private_key().sign(&plaintext);
-
-        Ok(AuthenticateRequest {
-            content,
-            request_signature,
-        })
-    }
-
-    pub fn verify_timestamp(
-        &self,
-        max_request_timestamp_skew: Duration,
-    ) -> Result<(), AuthenticationFailure> {
-        let now = OffsetDateTime::now_utc();
-        if self.content.request_timestamp() < now - max_request_timestamp_skew {
-            return Err(AuthenticationFailure::ExcessiveTimestampSkew {
-                received: self.content.request_timestamp(),
-                server: now,
-            });
-        }
-        if self.content.request_timestamp() - max_request_timestamp_skew > now {
-            return Err(AuthenticationFailure::ExcessiveTimestampSkew {
-                received: self.content.request_timestamp(),
-                server: now,
-            });
-        }
-        Ok(())
-    }
-
-    pub fn ensure_timestamp_not_reused(
-        &self,
-        previous: OffsetDateTime,
-    ) -> Result<(), AuthenticationFailure> {
-        if self.content.request_timestamp() <= previous {
-            return Err(AuthenticationFailure::RequestReuse);
-        }
-        Ok(())
-    }
-
-    pub fn verify_ciphertext(
-        &self,
-        shared_key: &SharedGatewayKey,
-    ) -> Result<(), AuthenticationFailure> {
-        let expected = shared_key.encrypt(
-            self.content
-                .client_identity
-                .derive_destination_address()
-                .as_bytes_ref(),
-            Some(&self.content.nonce),
-        )?;
-
-        if !bool::from(expected.ct_eq(&self.content.address_ciphertext)) {
-            return Err(AuthenticationFailure::MalformedCiphertext);
-        }
-        Ok(())
-    }
-
-    pub fn verify_signature(&self) -> Result<(), AuthenticationFailure> {
-        let plaintext = self.content.plaintext();
-        self.content
-            .client_identity
-            .verify(plaintext, &self.request_signature)
-            .map_err(Into::into)
-    }
-}
-
-#[derive(Serialize, Deserialize, Debug)]
-#[serde(rename_all = "camelCase")]
-pub struct AuthenticateRequestContent {
-    pub protocol_version: u8,
-
-    // this is identical to the client's address
-    pub client_identity: ed25519::PublicKey,
-
-    #[serde(with = "nym_serde_helpers::base64")]
-    pub address_ciphertext: Vec<u8>,
-
-    #[serde(with = "nym_serde_helpers::base64")]
-    pub nonce: Vec<u8>,
-
-    pub request_unix_timestamp: u64,
-}
-
-impl AuthenticateRequestContent {
-    fn new(
-        protocol_version: u8,
-        shared_key: &SharedGatewayKey,
-        client_identity: ed25519::PublicKey,
-    ) -> Result<AuthenticateRequestContent, GatewayRequestsError> {
-        let nonce = shared_key.random_nonce_or_iv();
-        let destination_address = client_identity.derive_destination_address();
-
-        let address_ciphertext =
-            shared_key.encrypt(destination_address.as_bytes_ref(), Some(&nonce))?;
-        let now = OffsetDateTime::now_utc();
-        Ok(AuthenticateRequestContent {
-            protocol_version,
-            client_identity,
-            address_ciphertext,
-            nonce,
-            request_unix_timestamp: now.unix_timestamp() as u64, // SAFETY: we're running this in post 1970...
-        })
-    }
-}
-
-impl AuthenticateRequestContent {
-    pub fn plaintext(&self) -> Vec<u8> {
-        iter::once(self.protocol_version)
-            .chain(self.client_identity.to_bytes())
-            .chain(self.address_ciphertext.iter().copied())
-            .chain(self.nonce.iter().copied())
-            .chain(self.request_unix_timestamp.to_be_bytes())
-            .collect()
-    }
-
-    pub fn request_timestamp(&self) -> OffsetDateTime {
-        OffsetDateTime::from_unix_timestamp(self.request_unix_timestamp as i64)
-            .unwrap_or(OffsetDateTime::UNIX_EPOCH)
-    }
-}
@@ -1,7 +0,0 @@
-/*
- * Copyright 2025 - Nym Technologies SA <contact@nymtech.net>
- * SPDX-License-Identifier: GPL-3.0-only
- */
-
-ALTER TABLE shared_keys
-    ADD COLUMN last_used_authentication TIMESTAMP WITHOUT TIME ZONE;
@@ -200,20 +200,6 @@ impl GatewayStorage {
        Ok(())
    }

-    pub async fn update_last_used_authentication_timestamp(
-        &self,
-        client_id: i64,
-        last_used_authentication_timestamp: OffsetDateTime,
-    ) -> Result<(), GatewayStorageError> {
-        self.shared_key_manager
-            .update_last_used_authentication_timestamp(
-                client_id,
-                last_used_authentication_timestamp,
-            )
-            .await?;
-        Ok(())
-    }
-
    pub async fn get_client(&self, client_id: i64) -> Result<Option<Client>, GatewayStorageError> {
        let client = self.client_manager.get_client(client_id).await?;
        Ok(client)
@@ -14,13 +14,13 @@ pub struct Client {

 #[derive(FromRow)]
 pub struct PersistedSharedKeys {
+    #[allow(dead_code)]
    pub client_id: i64,

    #[allow(dead_code)]
    pub client_address_bs58: String,
    pub derived_aes128_ctr_blake3_hmac_keys_bs58: Option<String>,
    pub derived_aes256_gcm_siv_key: Option<Vec<u8>>,
-    pub last_used_authentication: Option<OffsetDateTime>,
 }

 impl TryFrom<PersistedSharedKeys> for SharedGatewayKey {
@@ -2,7 +2,6 @@
 // SPDX-License-Identifier: GPL-3.0-only

 use crate::models::PersistedSharedKeys;
-use time::OffsetDateTime;

 #[derive(Clone)]
 pub(crate) struct SharedKeysManager {
@@ -69,22 +68,6 @@ impl SharedKeysManager {
        Ok(())
    }

-    pub(crate) async fn update_last_used_authentication_timestamp(
-        &self,
-        client_id: i64,
-        last_used: OffsetDateTime,
-    ) -> Result<(), sqlx::Error> {
-        sqlx::query!(
-            "UPDATE shared_keys SET last_used_authentication = ? WHERE client_id = ?;",
-            last_used,
-            client_id
-        )
-        .execute(&self.connection_pool)
-        .await?;
-
-        Ok(())
-    }
-
    /// Tries to retrieve shared keys stored for the particular client.
    ///
    /// # Arguments
@@ -94,10 +77,13 @@ impl SharedKeysManager {
        &self,
        client_address_bs58: &str,
    ) -> Result<Option<PersistedSharedKeys>, sqlx::Error> {
-        sqlx::query_as("SELECT * FROM shared_keys WHERE client_address_bs58 = ?")
-            .bind(client_address_bs58)
-            .fetch_optional(&self.connection_pool)
-            .await
+        sqlx::query_as!(
+            PersistedSharedKeys,
+            "SELECT * FROM shared_keys WHERE client_address_bs58 = ?",
+            client_address_bs58
+        )
+        .fetch_optional(&self.connection_pool)
+        .await
    }

    /// Removes from the database shared keys derived with the particular client.
@@ -21,12 +21,6 @@ serde_json = { workspace = true }
 thiserror = { workspace = true }
 tracing = { workspace = true }

-# used for decoding text responses (they were already implicitly included)
-bytes = { workspace = true }
-encoding_rs = { workspace = true }
-mime = { workspace = true }
-
-
 nym-bin-common = { path = "../bin-common" }

 [target."cfg(not(target_arch = \"wasm32\"))".dependencies]
@@ -38,4 +32,4 @@ workspace = true
 features = ["tokio"]

 [dev-dependencies]
-tokio = { workspace = true, features = ["rt", "macros"] }
+tokio = { workspace = true, features=["rt", "macros"] }
@@ -1,6 +1,3 @@
-// Copyright 2023 - Nym Technologies SA <contact@nymtech.net>
-// SPDX-License-Identifier: Apache-2.0
-
 //! DNS resolver configuration for internal lookups.
 //!
 //! The resolver itself is the set combination of the google, cloudflare, and quad9 endpoints
@@ -12,35 +9,19 @@
 //!
 //! Requires the `dns-over-https-rustls`, `webpki-roots` feature for the
 //! `hickory-resolver` crate
-//!
-//!
-//! Note: The hickory DoH resolver can cause warning logs about H2 connection failure. This
-//! indicates that the long lived https connection was closed by the remote peer and the resolver
-//! will have to reconnect. It should not impact actual functionality.
-//!
-//! code ref: https://github.com/hickory-dns/hickory-dns/blob/06a8b1ce9bd9322d8e6accf857d30257e1274427/crates/proto/src/h2/h2_client_stream.rs#L534
-//!
-//! example log:
-//!
-//! ```txt
-//!   WARN /home/ubuntu/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/hickory-proto-0.24.3/src/h2/h2_client_stream.rs:493: h2 connection failed: unexpected end of file
-//! ```
 #![deny(missing_docs)]

 use crate::ClientBuilder;

-use std::{
-    net::SocketAddr,
-    sync::{Arc, LazyLock},
-};
+use std::{net::SocketAddr, sync::Arc};

+use hickory_resolver::lookup_ip::LookupIp;
 use hickory_resolver::{
    config::{LookupIpStrategy, NameServerConfigGroup, ResolverConfig, ResolverOpts},
    error::ResolveError,
    lookup_ip::LookupIpIntoIter,
    TokioAsyncResolver,
 };
-use hickory_resolver::{error::ResolveErrorKind, lookup_ip::LookupIp};
 use once_cell::sync::OnceCell;
 use reqwest::dns::{Addrs, Name, Resolve, Resolving};
 use tracing::warn;
@@ -49,13 +30,6 @@ impl ClientBuilder {
    /// Override the DNS resolver implementation used by the underlying http client.
    pub fn dns_resolver<R: Resolve + 'static>(mut self, resolver: Arc<R>) -> Self {
        self.reqwest_client_builder = self.reqwest_client_builder.dns_resolver(resolver);
-        self.use_secure_dns = false;
-        self
-    }
-
-    /// Override the DNS resolver implementation used by the underlying http client.
-    pub fn no_hickory_dns(mut self) -> Self {
-        self.use_secure_dns = false;
        self
    }
 }
@@ -64,14 +38,6 @@ struct SocketAddrs {
    iter: LookupIpIntoIter,
 }

-// n.b. static items do not call [`Drop`] on program termination, so this won't be deallocated.
-// this is fine, as the OS can deallocate the terminated program faster than we can free memory
-// but tools like valgrind might report "memory leaks" as it isn't obvious this is intentional.
-static SHARED_RESOLVER: LazyLock<HickoryDnsResolver> = LazyLock::new(|| {
-    tracing::debug!("Initializing shared DNS resolver");
-    HickoryDnsResolver::default()
-});
-
 #[derive(Debug, thiserror::Error)]
 #[error("hickory-dns resolver error: {hickory_error}")]
 /// Error occurring while resolving a hostname into an IP address.
@@ -81,62 +47,29 @@ pub struct HickoryDnsError {
 }

 /// Wrapper around an `AsyncResolver`, which implements the `Resolve` trait.
-///
-/// Typical use involves instantiating using the `Default` implementation and then resolving using
-/// methods or trait implementations.
-///
-/// The default initialization uses a shared underlying `AsyncResolver`. If a thread local resolver
-/// is required use `thread_resolver()` to build a resolver with an independently instantiated
-/// internal `AsyncResolver`.
 #[derive(Debug, Default, Clone)]
 pub struct HickoryDnsResolver {
-    // Since we might not have been called in the context of a
-    // Tokio Runtime in initialization, so we must delay the actual
-    // construction of the resolver.
+    /// Since we might not have been called in the context of a
+    /// Tokio Runtime in initialization, so we must delay the actual
+    /// construction of the resolver.
    state: Arc<OnceCell<TokioAsyncResolver>>,
    fallback: Arc<OnceCell<TokioAsyncResolver>>,
-    dont_use_shared: bool,
 }

 impl Resolve for HickoryDnsResolver {
    fn resolve(&self, name: Name) -> Resolving {
        let resolver = self.state.clone();
        let fallback = self.fallback.clone();
-        let independent = self.dont_use_shared;
        Box::pin(async move {
-            let resolver = resolver.get_or_try_init(|| {
-                // using a closure here is slightly gross, but this makes sure that if the
-                // lazy-init returns an error it can be handled by the client
-                if independent {
-                    new_resolver()
-                } else {
-                    Ok(SHARED_RESOLVER.state.get_or_try_init(new_resolver)?.clone())
-                }
-            })?;
+            let resolver = resolver.get_or_try_init(new_resolver)?;

            // try the primary DNS resolver that we set up (DoH or DoT or whatever)
            let lookup = match resolver.lookup_ip(name.as_str()).await {
                Ok(res) => res,
                Err(e) => {
                    // on failure use the fall back system configured DNS resolver
-                    match e.kind() {
-                        ResolveErrorKind::NoRecordsFound { .. } => {}
-                        _ => {
-                            warn!("primary DNS failed w/ error {e}: using system fallback");
-                        }
-                    }
-                    let resolver = fallback.get_or_try_init(|| {
-                        // using a closure here is slightly gross, but this makes sure that if the
-                        // lazy-init returns an error it can be handled by the client
-                        if independent {
-                            new_resolver_system()
-                        } else {
-                            Ok(SHARED_RESOLVER
-                                .fallback
-                                .get_or_try_init(new_resolver_system)?
-                                .clone())
-                        }
-                    })?;
+                    warn!("primary DNS failed w/ error {e}: using system fallback");
+                    let resolver = fallback.get_or_try_init(new_resolver_system)?;
                    resolver.lookup_ip(name.as_str()).await?
                }
            };
@@ -160,55 +93,21 @@ impl Iterator for SocketAddrs {
 impl HickoryDnsResolver {
    /// Attempt to resolve a domain name to a set of ['IpAddr']s
    pub async fn resolve_str(&self, name: &str) -> Result<LookupIp, HickoryDnsError> {
-        let resolver = self.state.get_or_try_init(|| self.new_resolver())?;
+        let resolver = self.state.get_or_try_init(new_resolver)?;

        // try the primary DNS resolver that we set up (DoH or DoT or whatever)
        let lookup = match resolver.lookup_ip(name).await {
            Ok(res) => res,
            Err(e) => {
                // on failure use the fall back system configured DNS resolver
-                match e.kind() {
-                    ResolveErrorKind::NoRecordsFound { .. } => {}
-                    _ => {
-                        warn!("primary DNS failed w/ error {e}: using system fallback");
-                    }
-                }
-                let resolver = self
-                    .fallback
-                    .get_or_try_init(|| self.new_resolver_system())?;
+                warn!("primary DNS failed w/ error {e}: using system fallback");
+                let resolver = self.fallback.get_or_try_init(new_resolver_system)?;
                resolver.lookup_ip(name).await?
            }
        };

        Ok(lookup)
    }
-
-    /// Create a (lazy-initialized) resolver that is not shared across threads.
-    pub fn thread_resolver() -> Self {
-        Self {
-            dont_use_shared: true,
-            ..Default::default()
-        }
-    }
-
-    fn new_resolver(&self) -> Result<TokioAsyncResolver, HickoryDnsError> {
-        if self.dont_use_shared {
-            new_resolver()
-        } else {
-            Ok(SHARED_RESOLVER.state.get_or_try_init(new_resolver)?.clone())
-        }
-    }
-
-    fn new_resolver_system(&self) -> Result<TokioAsyncResolver, HickoryDnsError> {
-        if self.dont_use_shared {
-            new_resolver_system()
-        } else {
-            Ok(SHARED_RESOLVER
-                .fallback
-                .get_or_try_init(new_resolver_system)?
-                .clone())
-        }
-    }
 }

 /// Create a new resolver with a custom DoT based configuration. The options are overridden to look
@@ -147,13 +147,13 @@ use thiserror::Error;
 use tracing::{instrument, warn};
 use url::Url;

-use http::HeaderMap;
-pub use reqwest::IntoUrl;
 #[cfg(not(target_arch = "wasm32"))]
 use std::net::SocketAddr;
 #[cfg(not(target_arch = "wasm32"))]
 use std::sync::Arc;

+pub use reqwest::IntoUrl;
+
 mod user_agent;
 pub use user_agent::UserAgent;

@@ -210,12 +210,6 @@ pub enum HttpClientError<E: Display = String> {
    #[error("failed to resolve request. status: '{status}', additional error message: {error}")]
    EndpointFailure { status: StatusCode, error: E },

-    #[error("failed to decode response body: {source} from {content}")]
-    ResponseDecodeFailure {
-        source: serde_json::Error,
-        content: String,
-    },
-
    #[cfg(target_arch = "wasm32")]
    #[error("the request has timed out")]
    RequestTimeout,
@@ -228,8 +222,6 @@ pub struct ClientBuilder {
    timeout: Option<Duration>,
    custom_user_agent: bool,
    reqwest_client_builder: reqwest::ClientBuilder,
-    #[allow(dead_code)] // not dead code, just unused in wasm
-    use_secure_dns: bool,
 }

 impl ClientBuilder {
@@ -241,46 +233,37 @@ impl ClientBuilder {
        U: IntoUrl,
        E: Display,
    {
+        // a naive check: if the provided URL does not start with http(s), add that scheme
        let str_url = url.as_str();

-        // a naive check: if the provided URL does not start with http(s), add that scheme
        if !str_url.starts_with("http") {
            let alt = format!("http://{str_url}");
            warn!("the provided url ('{str_url}') does not contain scheme information. Changing it to '{alt}' ...");
            // TODO: or should we maybe default to https?
            Self::new(alt)
        } else {
-            Ok(Self::new_with_url(url.into_url()?))
-        }
-    }
+            #[cfg(target_arch = "wasm32")]
+            let reqwest_client_builder = reqwest::ClientBuilder::new();

-    /// Constructs a new http `ClientBuilder` from a valid url.
-    pub fn new_with_url(url: Url) -> Self {
-        if !url.scheme().starts_with("http") {
-            warn!("the provided url ('{url}') does not use HTTP / HTTPS scheme");
-        }
+            #[cfg(not(target_arch = "wasm32"))]
+            let reqwest_client_builder = {
+                let r = reqwest::ClientBuilder::new()
+                    .dns_resolver(Arc::new(HickoryDnsResolver::default()));

-        #[cfg(target_arch = "wasm32")]
-        let reqwest_client_builder = reqwest::ClientBuilder::new();
+                // Note this is extra as the `gzip` feature for `reqwest` crate should be enabled which
+                // `"Enable[s] auto gzip decompression by checking the Content-Encoding response header."`
+                //
+                // I am going to leave it here anyways so that gzip decompression is attempted even if
+                // that feature is removed.
+                r.gzip(true)
+            };

-        #[cfg(not(target_arch = "wasm32"))]
-        let reqwest_client_builder = {
-            let r = reqwest::ClientBuilder::new();
-
-            // Note this is extra as the `gzip` feature for `reqwest` crate should be enabled which
-            // `"Enable[s] auto gzip decompression by checking the Content-Encoding response header."`
-            //
-            // I am going to leave it here anyways so that gzip decompression is attempted even if
-            // that feature is removed.
-            r.gzip(true)
-        };
-
-        ClientBuilder {
-            url,
-            timeout: None,
-            custom_user_agent: false,
-            reqwest_client_builder,
-            use_secure_dns: true,
+            Ok(ClientBuilder {
+                url: url.into_url()?,
+                timeout: None,
+                custom_user_agent: false,
+                reqwest_client_builder,
+            })
        }
    }

@@ -336,18 +319,10 @@ impl ClientBuilder {
            let mut builder = self
                .reqwest_client_builder
                .timeout(self.timeout.unwrap_or(DEFAULT_TIMEOUT));
-
-            // if no custom user agent was set, use a default
            if !self.custom_user_agent {
                builder =
                    builder.user_agent(format!("nym-http-api-client/{}", env!("CARGO_PKG_VERSION")))
            }
-
-            // unless explicitly disabled use the DoT/DoH enabled resolver
-            if self.use_secure_dns {
-                builder = builder.dns_resolver(Arc::new(HickoryDnsResolver::default()));
-            }
-
            builder.build()?
        };

@@ -374,9 +349,6 @@ pub struct Client {
 impl Client {
    /// Create a new http `Client`
    // no timeout until https://github.com/seanmonstar/reqwest/issues/1135 is fixed
-    //
-    // In order to prevent interference in API requests at the DNS phase we default to a resolver
-    // that uses DoT and DoH.
    pub fn new(base_url: Url, timeout: Option<Duration>) -> Self {
        Self::new_url::<_, String>(base_url, timeout).expect(
            "we provided valid url and we were unwrapping previous construction errors anyway",
@@ -877,26 +849,6 @@ fn sanitize_url<K: AsRef<str>, V: AsRef<str>>(
    url
 }

-fn decode_as_text(bytes: &bytes::Bytes, headers: HeaderMap) -> String {
-    use encoding_rs::{Encoding, UTF_8};
-    use mime::Mime;
-
-    let content_type = headers
-        .get(http::header::CONTENT_TYPE)
-        .and_then(|value| value.to_str().ok())
-        .and_then(|value| value.parse::<Mime>().ok());
-
-    let encoding_name = content_type
-        .as_ref()
-        .and_then(|mime| mime.get_param("charset").map(|charset| charset.as_str()))
-        .unwrap_or("utf-8");
-
-    let encoding = Encoding::for_label(encoding_name.as_bytes()).unwrap_or(UTF_8);
-
-    let (text, _, _) = encoding.decode(bytes);
-    text.into_owned()
-}
-
 /// Attempt to parse a json object from an HTTP response
 #[instrument(level = "debug", skip_all)]
 pub async fn parse_response<T, E>(res: Response, allow_empty: bool) -> Result<T, HttpClientError<E>>
@@ -912,23 +864,21 @@ where
            return Err(HttpClientError::EmptyResponse { status });
        }
    }
-    let headers = res.headers().clone();
-    tracing::trace!("headers: {:?}", headers);

    if res.status().is_success() {
-        // internally reqwest is first retrieving bytes and then performing parsing via serde_json
-        // (and similarly does the same thing for text())
-        let full = res.bytes().await?;
-        match serde_json::from_slice(&full) {
-            Ok(data) => Ok(data),
-            Err(err) => {
-                let content = decode_as_text(&full, headers);
-                Err(HttpClientError::ResponseDecodeFailure {
-                    source: err,
-                    content,
-                })
-            }
+        #[cfg(debug_assertions)]
+        {
+            let text = res.text().await.inspect_err(|err| {
+                tracing::error!("Couldn't even get response text: {err}");
+            })?;
+            tracing::trace!("Result:\n{:#?}", text);
+
+            serde_json::from_str(&text)
+                .map_err(|err| HttpClientError::GenericRequestFailure(err.to_string()))
        }
+
+        #[cfg(not(debug_assertions))]
+        Ok(res.json().await?)
    } else if res.status() == StatusCode::NOT_FOUND {
        Err(HttpClientError::NotFound)
    } else {
@@ -20,7 +20,6 @@ mime = { workspace = true }
 serde = { workspace = true, features = ["derive"] }
 serde_json.workspace = true
 serde_yaml = { workspace = true }
-subtle.workspace = true
 tower = { workspace = true }
 tracing.workspace = true
 utoipa = { workspace = true, optional = true }
@@ -7,7 +7,6 @@ use axum::{extract::Request, response::Response};
 use futures::future::BoxFuture;
 use std::sync::Arc;
 use std::task::{Context, Poll};
-use subtle::ConstantTimeEq;
 use tower::{Layer, Service};
 use tracing::{debug, instrument, trace};
 use zeroize::Zeroizing;
@@ -77,7 +76,7 @@ impl<S> RequireAuth<S> {
            return Err("`Authorization` header must contain non-empty `Bearer` token");
        }

-        if bool::from(self.bearer_token.as_bytes().ct_ne(bearer_token.as_bytes())) {
+        if self.bearer_token.as_str() != bearer_token {
            return Err("`Authorization` header does not contain the correct `Bearer` token");
        }

@@ -13,7 +13,6 @@ bincode = { workspace = true }
 bytes = { workspace = true }
 nym-bin-common = { path = "../bin-common" }
 nym-crypto = { path = "../crypto" }
-nym-service-provider-requests-common = { path = "../service-provider-requests-common" }
 nym-sphinx = { path = "../nymsphinx" }
 rand = { workspace = true }
 serde = { workspace = true, features = ["derive"] }
@@ -23,14 +23,14 @@ const LENGTH_PREFIX_SIZE: usize = 2;
 // long for the buffer to fill up, since this kills latency.
 pub struct MultiIpPacketCodec {
    buffer: BytesMut,
-    pub counter: u64,
+    buffer_timeout: tokio::time::Interval,
 }

 impl MultiIpPacketCodec {
-    pub fn new() -> Self {
+    pub fn new(buffer_timeout: Duration) -> Self {
        MultiIpPacketCodec {
            buffer: BytesMut::new(),
-            counter: 0,
+            buffer_timeout: tokio::time::interval(buffer_timeout),
        }
    }

@@ -40,87 +40,56 @@ impl MultiIpPacketCodec {
        bundled_packets.extend_from_slice(&packet);
        bundled_packets.freeze()
    }
-}

-impl Default for MultiIpPacketCodec {
-    fn default() -> Self {
-        Self::new()
-    }
-}
-
-/// The packet that we encode and decode with the MultiIpPacketCodec into bundled multi-ip packets.
-/// The data here is the actual IP packet that we want to send, not the bundled packets.
-#[derive(Debug, Clone, PartialEq, Eq)]
-pub enum IprPacket {
-    Data(Bytes),
-    Flush,
-}
-
-impl IprPacket {
-    pub fn as_bytes(&self) -> &[u8] {
-        match self {
-            IprPacket::Data(bytes) => bytes.as_ref(),
-            IprPacket::Flush => &[],
+    // Append a packet to the buffer and return the buffer if it's full
+    pub fn append_packet(&mut self, packet: Bytes) -> Option<Bytes> {
+        let mut bundled_packets = BytesMut::new();
+        self.encode(packet, &mut bundled_packets).unwrap();
+        if bundled_packets.is_empty() {
+            None
+        } else {
+            // log::info!("Sphinx packet utilization: {:.2}", self.buffer.len() as f64 / MAX_PACKET_SIZE as f64);
+            Some(bundled_packets.freeze())
        }
    }

-    pub fn into_bytes(self) -> Bytes {
-        match self {
-            IprPacket::Data(bytes) => bytes,
-            IprPacket::Flush => Bytes::new(),
+    // Flush the current buffer and return it.
+    pub fn flush_current_buffer(&mut self) -> Bytes {
+        let mut output_buffer = BytesMut::new();
+        std::mem::swap(&mut output_buffer, &mut self.buffer);
+        output_buffer.freeze()
+    }
+
+    // Wait for the buffer_timeout to tick and then flush the buffer.
+    // This is useful when we want to send the buffer even if it's not full.
+    pub async fn buffer_timeout(&mut self) -> Option<Bytes> {
+        // Wait for buffer_timeout to tick
+        let _ = self.buffer_timeout.tick().await;
+
+        // Flush the buffer and return it
+        let packets = self.flush_current_buffer();
+        if packets.is_empty() {
+            None
+        } else {
+            Some(packets)
        }
    }
 }

-impl From<Bytes> for IprPacket {
-    fn from(bytes: Bytes) -> Self {
-        IprPacket::Data(bytes)
-    }
-}
-
-impl From<Vec<u8>> for IprPacket {
-    fn from(bytes: Vec<u8>) -> Self {
-        IprPacket::Data(Bytes::from(bytes))
-    }
-}
-
-impl Encoder<IprPacket> for MultiIpPacketCodec {
+impl Encoder<Bytes> for MultiIpPacketCodec {
    type Error = Error;

-    fn encode(&mut self, packet: IprPacket, dst: &mut BytesMut) -> Result<(), Self::Error> {
-        let packet = match packet {
-            IprPacket::Flush => {
-                dst.extend_from_slice(&self.buffer);
-                self.counter += 1;
-                println!("Encoding packet: {}", self.counter);
-                self.buffer = BytesMut::new();
-                return Ok(());
-            }
-            IprPacket::Data(packet) => packet,
-        };
-
+    fn encode(&mut self, packet: Bytes, dst: &mut BytesMut) -> Result<(), Self::Error> {
+        if self.buffer.is_empty() {
+            self.buffer_timeout.reset();
+        }
        let packet_size = packet.len();

-        // If the existing buffer is empty, and the packet is too large, send it directly
-        if self.buffer.is_empty() && packet_size + LENGTH_PREFIX_SIZE > MAX_PACKET_SIZE {
-            // Add the packet size
-            dst.extend_from_slice(&(packet_size as u16).to_be_bytes());
-            // Add the packet to the buffer
-            dst.extend_from_slice(&packet);
-            self.counter += 1;
-            println!("Encoding packet: {}", self.counter);
-            return Ok(());
-        }
-
-        // If the packet doesn't fit in the existing buffer, send what we have now in the buffer
-        // and then add it to the next buffer
        if self.buffer.len() + packet_size + LENGTH_PREFIX_SIZE > MAX_PACKET_SIZE {
-            // Send the existing buffer
+            // If the packet doesn't fit in the buffer, send the buffer and then add it to the buffer
            dst.extend_from_slice(&self.buffer);
-            self.counter += 1;
-            println!("Encoding packet: {}", self.counter);
-            // Start a new buffer
            self.buffer = BytesMut::new();
+            self.buffer_timeout.reset();
        }

        // Add the packet size
@@ -134,7 +103,7 @@ impl Encoder<IprPacket> for MultiIpPacketCodec {
 }

 impl Decoder for MultiIpPacketCodec {
-    type Item = IprPacket;
+    type Item = Bytes;
    type Error = Error;

    fn decode(&mut self, src: &mut BytesMut) -> Result<Option<Self::Item>, Self::Error> {
@@ -156,86 +125,6 @@ impl Decoder for MultiIpPacketCodec {
        // Read the packet
        let packet = src.split_to(packet_size);

-        Ok(Some(IprPacket::Data(packet.freeze())))
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    #[test]
-    fn test_multi_ip_packet_codec_max_packet_size() {
-        let mut codec = MultiIpPacketCodec::new();
-        let mut buffer = BytesMut::new();
-
-        // A packet size that is large enough that two packets won't fit in the buffer
-        const PACKET_SIZE: usize = MAX_PACKET_SIZE - 100;
-
-        let packet1 = IprPacket::from(Bytes::from_static(&[0u8; PACKET_SIZE]));
-        let packet2 = IprPacket::from(Bytes::from_static(&[0u8; PACKET_SIZE]));
-
-        codec.encode(packet1.clone(), &mut buffer).unwrap();
-        assert_eq!(buffer.len(), 0);
-
-        codec.encode(packet2.clone(), &mut buffer).unwrap();
-        assert_eq!(buffer.len(), LENGTH_PREFIX_SIZE + PACKET_SIZE);
-
-        // First is the length prefix
-        assert_eq!(buffer[..2], (PACKET_SIZE as u16).to_be_bytes());
-        // Next is the packet
-        assert_eq!(&buffer[2..], packet1.as_bytes());
-    }
-
-    #[test]
-    fn encode_and_then_decode() {
-        let mut codec = MultiIpPacketCodec::new();
-        let mut buffer = BytesMut::new();
-
-        let packet = IprPacket::from(Bytes::from_static(&[0u8; 1000]));
-        codec.encode(packet.clone(), &mut buffer).unwrap();
-        codec.encode(packet.clone(), &mut buffer).unwrap();
-
-        let mut decoded_packets = Vec::new();
-        while let Some(decoded_packet) = codec.decode(&mut buffer).unwrap() {
-            decoded_packets.push(decoded_packet);
-        }
-
-        assert_eq!(decoded_packets.len(), 1);
-        assert_eq!(decoded_packets[0].as_bytes(), packet.as_bytes());
-    }
-
-    #[test]
-    fn encode_a_packat_that_is_too_large() {
-        let mut codec = MultiIpPacketCodec::new();
-        let mut buffer = BytesMut::new();
-
-        let packet = IprPacket::from(Bytes::from_static(
-            &[0u8; MAX_PACKET_SIZE + MAX_PACKET_SIZE],
-        ));
-        codec.encode(packet, &mut buffer).unwrap();
-        assert_eq!(
-            buffer.len(),
-            MAX_PACKET_SIZE + MAX_PACKET_SIZE + LENGTH_PREFIX_SIZE
-        );
-        codec.encode(IprPacket::Flush, &mut buffer).unwrap();
-        assert_eq!(
-            buffer.len(),
-            MAX_PACKET_SIZE + MAX_PACKET_SIZE + LENGTH_PREFIX_SIZE
-        );
-    }
-
-    #[test]
-    fn check_that_max_size_does_not_flush() {
-        let mut codec = MultiIpPacketCodec::new();
-        let mut buffer = BytesMut::new();
-
-        let packet = IprPacket::from(Bytes::from_static(&[0u8; MAX_PACKET_SIZE - 2]));
-        codec.encode(packet.clone(), &mut buffer).unwrap();
-        assert_eq!(buffer.len(), 0);
-
-        let packet = IprPacket::from(Bytes::from_static(&[0u8; MAX_PACKET_SIZE - 2]));
-        codec.encode(packet.clone(), &mut buffer).unwrap();
-        assert_eq!(buffer.len(), MAX_PACKET_SIZE);
+        Ok(Some(packet.freeze()))
    }
 }
@@ -2,18 +2,24 @@ use serde::{Deserialize, Serialize};
 use std::fmt::{Display, Formatter};
 use std::net::{Ipv4Addr, Ipv6Addr};

+// The current version of the protocol.
+// The idea here is that we add new request response types at least one version before we start
+// using them.
+// Also, depending on the version in the client connect message the IPR could respond with a
+// matching older version.
+pub use v6::request;
+pub use v6::response;
+
 pub mod codec;
-pub mod sign;
 pub mod v6;
 pub mod v7;
-pub mod v8;

 // version 3: initial version
 // version 4: IPv6 support
 // version 5: Add severity level to info response
 // version 6: Increase the available IPs
 // version 7: Add signature support (for the future)
-// version 8: Anonymous sends
+pub const CURRENT_VERSION: u8 = 6;

 #[derive(Copy, Clone, Debug, PartialEq, Eq, Hash, Serialize, Deserialize)]
 pub struct IpPair {
@@ -39,9 +45,3 @@ fn make_bincode_serializer() -> impl bincode::Options {
        .with_big_endian()
        .with_varint_encoding()
 }
-
-fn generate_random() -> u64 {
-    use rand::RngCore;
-    let mut rng = rand::rngs::OsRng;
-    rng.next_u64()
-}
@@ -0,0 +1,69 @@
+// Copyright 2024 - Nym Technologies SA <contact@nymtech.net>
+// SPDX-License-Identifier: Apache-2.0
+
+use crate::{v6, v7};
+
+impl From<v7::response::StaticConnectFailureReason> for v6::response::StaticConnectFailureReason {
+    fn from(failure: v7::response::StaticConnectFailureReason) -> Self {
+        match failure {
+            v7::response::StaticConnectFailureReason::RequestedIpAlreadyInUse => {
+                v6::response::StaticConnectFailureReason::RequestedIpAlreadyInUse
+            }
+            v7::response::StaticConnectFailureReason::RequestedNymAddressAlreadyInUse => {
+                v6::response::StaticConnectFailureReason::RequestedNymAddressAlreadyInUse
+            }
+            v7::response::StaticConnectFailureReason::OutOfDateTimestamp => {
+                v6::response::StaticConnectFailureReason::Other("out of date timestamp".to_string())
+            }
+            v7::response::StaticConnectFailureReason::Other(reason) => {
+                v6::response::StaticConnectFailureReason::Other(reason)
+            }
+        }
+    }
+}
+
+impl From<v7::response::DynamicConnectFailureReason> for v6::response::DynamicConnectFailureReason {
+    fn from(failure: v7::response::DynamicConnectFailureReason) -> Self {
+        match failure {
+            v7::response::DynamicConnectFailureReason::RequestedNymAddressAlreadyInUse => {
+                v6::response::DynamicConnectFailureReason::RequestedNymAddressAlreadyInUse
+            }
+            v7::response::DynamicConnectFailureReason::NoAvailableIp => {
+                v6::response::DynamicConnectFailureReason::NoAvailableIp
+            }
+            v7::response::DynamicConnectFailureReason::Other(err) => {
+                v6::response::DynamicConnectFailureReason::Other(err)
+            }
+        }
+    }
+}
+
+impl From<v7::response::InfoResponseReply> for v6::response::InfoResponseReply {
+    fn from(reply: v7::response::InfoResponseReply) -> Self {
+        match reply {
+            v7::response::InfoResponseReply::Generic { msg } => {
+                v6::response::InfoResponseReply::Generic { msg }
+            }
+            v7::response::InfoResponseReply::VersionMismatch {
+                request_version,
+                response_version,
+            } => v6::response::InfoResponseReply::VersionMismatch {
+                request_version,
+                response_version,
+            },
+            v7::response::InfoResponseReply::ExitPolicyFilterCheckFailed { dst } => {
+                v6::response::InfoResponseReply::ExitPolicyFilterCheckFailed { dst }
+            }
+        }
+    }
+}
+
+impl From<v7::response::InfoLevel> for v6::response::InfoLevel {
+    fn from(level: v7::response::InfoLevel) -> Self {
+        match level {
+            v7::response::InfoLevel::Info => v6::response::InfoLevel::Info,
+            v7::response::InfoLevel::Warn => v6::response::InfoLevel::Warn,
+            v7::response::InfoLevel::Error => v6::response::InfoLevel::Error,
+        }
+    }
+}
@@ -1,3 +1,4 @@
+pub mod conversion;
 pub mod request;
 pub mod response;

@@ -0,0 +1,125 @@
+use time::OffsetDateTime;
+
+use crate::{v6, v7};
+
+impl From<v6::request::IpPacketRequest> for v7::request::IpPacketRequest {
+    fn from(ip_packet_request: v6::request::IpPacketRequest) -> Self {
+        Self {
+            version: 7,
+            data: ip_packet_request.data.into(),
+        }
+    }
+}
+
+impl From<v6::request::IpPacketRequestData> for v7::request::IpPacketRequestData {
+    fn from(ip_packet_request_data: v6::request::IpPacketRequestData) -> Self {
+        match ip_packet_request_data {
+            v6::request::IpPacketRequestData::StaticConnect(r) => {
+                v7::request::IpPacketRequestData::StaticConnect(
+                    v7::request::SignedStaticConnectRequest {
+                        request: r.into(),
+                        signature: None,
+                    },
+                )
+            }
+            v6::request::IpPacketRequestData::DynamicConnect(r) => {
+                v7::request::IpPacketRequestData::DynamicConnect(
+                    v7::request::SignedDynamicConnectRequest {
+                        request: r.into(),
+                        signature: None,
+                    },
+                )
+            }
+            v6::request::IpPacketRequestData::Disconnect(r) => {
+                v7::request::IpPacketRequestData::Disconnect(v7::request::SignedDisconnectRequest {
+                    request: r.into(),
+                    signature: None,
+                })
+            }
+            v6::request::IpPacketRequestData::Data(r) => {
+                v7::request::IpPacketRequestData::Data(r.into())
+            }
+            v6::request::IpPacketRequestData::Ping(r) => {
+                v7::request::IpPacketRequestData::Ping(r.into())
+            }
+            v6::request::IpPacketRequestData::Health(r) => {
+                v7::request::IpPacketRequestData::Health(r.into())
+            }
+        }
+    }
+}
+
+impl From<v6::request::StaticConnectRequest> for v7::request::StaticConnectRequest {
+    fn from(static_connect_request: v6::request::StaticConnectRequest) -> Self {
+        Self {
+            request_id: static_connect_request.request_id,
+            ips: static_connect_request.ips,
+            reply_to: static_connect_request.reply_to,
+            reply_to_hops: static_connect_request.reply_to_hops,
+            reply_to_avg_mix_delays: static_connect_request.reply_to_avg_mix_delays,
+            buffer_timeout: static_connect_request.buffer_timeout,
+            timestamp: OffsetDateTime::now_utc(),
+        }
+    }
+}
+
+#[allow(deprecated)]
+impl From<v6::request::DynamicConnectRequest> for v7::request::DynamicConnectRequest {
+    fn from(dynamic_connect_request: v6::request::DynamicConnectRequest) -> Self {
+        Self {
+            request_id: dynamic_connect_request.request_id,
+            reply_to: dynamic_connect_request.reply_to,
+            reply_to_hops: dynamic_connect_request.reply_to_hops,
+            reply_to_avg_mix_delays: dynamic_connect_request.reply_to_avg_mix_delays,
+            buffer_timeout: dynamic_connect_request.buffer_timeout,
+            timestamp: OffsetDateTime::now_utc(),
+        }
+    }
+}
+
+impl From<v6::request::DisconnectRequest> for v7::request::SignedDisconnectRequest {
+    fn from(disconnect_request: v6::request::DisconnectRequest) -> Self {
+        Self {
+            request: disconnect_request.into(),
+            signature: None,
+        }
+    }
+}
+
+impl From<v6::request::DisconnectRequest> for v7::request::DisconnectRequest {
+    fn from(disconnect_request: v6::request::DisconnectRequest) -> Self {
+        Self {
+            request_id: disconnect_request.request_id,
+            reply_to: disconnect_request.reply_to,
+            timestamp: OffsetDateTime::now_utc(),
+        }
+    }
+}
+
+impl From<v6::request::DataRequest> for v7::request::DataRequest {
+    fn from(data_request: v6::request::DataRequest) -> Self {
+        Self {
+            ip_packets: data_request.ip_packets,
+        }
+    }
+}
+
+impl From<v6::request::PingRequest> for v7::request::PingRequest {
+    fn from(ping_request: v6::request::PingRequest) -> Self {
+        Self {
+            request_id: ping_request.request_id,
+            reply_to: ping_request.reply_to,
+            timestamp: OffsetDateTime::now_utc(),
+        }
+    }
+}
+
+impl From<v6::request::HealthRequest> for v7::request::HealthRequest {
+    fn from(health_request: v6::request::HealthRequest) -> Self {
+        Self {
+            request_id: health_request.request_id,
+            reply_to: health_request.reply_to,
+            timestamp: OffsetDateTime::now_utc(),
+        }
+    }
+}
@@ -1,4 +1,6 @@
+pub mod conversion;
 pub mod request;
 pub mod response;
+pub mod signature;

 pub const VERSION: u8 = 7;
@@ -1,18 +1,22 @@
-use std::fmt;
-
 use nym_crypto::asymmetric::identity;
 use nym_sphinx::addressing::clients::Recipient;
 use serde::{Deserialize, Serialize};
 use time::OffsetDateTime;

-use crate::{
-    sign::{SignatureError, SignedRequest},
-    IpPair,
+use crate::{make_bincode_serializer, IpPair};
+
+use super::{
+    signature::{SignatureError, SignedRequest},
+    VERSION,
 };

-use super::VERSION;
+fn generate_random() -> u64 {
+    use rand::RngCore;
+    let mut rng = rand::rngs::OsRng;
+    rng.next_u64()
+}

-#[derive(Clone, Debug, Serialize, Deserialize, PartialEq)]
+#[derive(Clone, Debug, Serialize, Deserialize)]
 pub struct IpPacketRequest {
    pub version: u8,
    pub data: IpPacketRequestData,
@@ -26,7 +30,7 @@ impl IpPacketRequest {
        reply_to_avg_mix_delays: Option<f64>,
        buffer_timeout: Option<u64>,
    ) -> (Self, u64) {
-        let request_id = crate::generate_random();
+        let request_id = generate_random();
        (
            Self {
                version: VERSION,
@@ -54,7 +58,7 @@ impl IpPacketRequest {
        reply_to_avg_mix_delays: Option<f64>,
        buffer_timeout: Option<u64>,
    ) -> (Self, u64) {
-        let request_id = crate::generate_random();
+        let request_id = generate_random();
        (
            Self {
                version: VERSION,
@@ -75,7 +79,7 @@ impl IpPacketRequest {
    }

    pub fn new_disconnect_request(reply_to: Recipient) -> (Self, u64) {
-        let request_id = crate::generate_random();
+        let request_id = generate_random();
        (
            Self {
                version: VERSION,
@@ -100,7 +104,7 @@ impl IpPacketRequest {
    }

    pub fn new_ping(reply_to: Recipient) -> (Self, u64) {
-        let request_id = crate::generate_random();
+        let request_id = generate_random();
        (
            Self {
                version: VERSION,
@@ -115,7 +119,7 @@ impl IpPacketRequest {
    }

    pub fn new_health_request(reply_to: Recipient) -> (Self, u64) {
-        let request_id = crate::generate_random();
+        let request_id = generate_random();
        (
            Self {
                version: VERSION,
@@ -151,27 +155,16 @@ impl IpPacketRequest {
        }
    }

-    pub fn verify(&self) -> Result<(), SignatureError> {
-        match &self.data {
-            IpPacketRequestData::StaticConnect(request) => request.verify(),
-            IpPacketRequestData::DynamicConnect(request) => request.verify(),
-            IpPacketRequestData::Disconnect(request) => request.verify(),
-            IpPacketRequestData::Data(_) => Ok(()),
-            IpPacketRequestData::Ping(_) => Ok(()),
-            IpPacketRequestData::Health(_) => Ok(()),
-        }
-    }
-
    pub fn to_bytes(&self) -> Result<Vec<u8>, bincode::Error> {
        use bincode::Options;
-        crate::make_bincode_serializer().serialize(self)
+        make_bincode_serializer().serialize(self)
    }

    pub fn from_reconstructed_message(
        message: &nym_sphinx::receiver::ReconstructedMessage,
    ) -> Result<Self, bincode::Error> {
        use bincode::Options;
-        crate::make_bincode_serializer().deserialize(&message.message)
+        make_bincode_serializer().deserialize(&message.message)
    }
 }

@@ -186,19 +179,6 @@ pub enum IpPacketRequestData {
    Health(HealthRequest),
 }

-impl fmt::Display for IpPacketRequestData {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        match self {
-            IpPacketRequestData::StaticConnect(_) => write!(f, "StaticConnect"),
-            IpPacketRequestData::DynamicConnect(_) => write!(f, "DynamicConnect"),
-            IpPacketRequestData::Disconnect(_) => write!(f, "Disconnect"),
-            IpPacketRequestData::Data(_) => write!(f, "Data"),
-            IpPacketRequestData::Ping(_) => write!(f, "Ping"),
-            IpPacketRequestData::Health(_) => write!(f, "Health"),
-        }
-    }
-}
-
 impl IpPacketRequestData {
    pub fn add_signature(&mut self, signature: identity::Signature) -> Option<identity::Signature> {
        match self {
@@ -222,9 +202,9 @@ impl IpPacketRequestData {

    pub fn signable_request(&self) -> Option<Result<Vec<u8>, SignatureError>> {
        match self {
-            IpPacketRequestData::StaticConnect(request) => Some(request.request_as_bytes()),
-            IpPacketRequestData::DynamicConnect(request) => Some(request.request_as_bytes()),
-            IpPacketRequestData::Disconnect(request) => Some(request.request_as_bytes()),
+            IpPacketRequestData::StaticConnect(request) => Some(request.request()),
+            IpPacketRequestData::DynamicConnect(request) => Some(request.request()),
+            IpPacketRequestData::Disconnect(request) => Some(request.request()),
            IpPacketRequestData::Data(_) => None,
            IpPacketRequestData::Ping(_) => None,
            IpPacketRequestData::Health(_) => None,
@@ -262,7 +242,7 @@ pub struct StaticConnectRequest {
 impl StaticConnectRequest {
    pub fn to_bytes(&self) -> Result<Vec<u8>, bincode::Error> {
        use bincode::Options;
-        crate::make_bincode_serializer().serialize(self)
+        make_bincode_serializer().serialize(self)
    }
 }

@@ -273,11 +253,11 @@ pub struct SignedStaticConnectRequest {
 }

 impl SignedRequest for SignedStaticConnectRequest {
-    fn identity(&self) -> Option<&identity::PublicKey> {
-        Some(self.request.reply_to.identity())
+    fn identity(&self) -> &identity::PublicKey {
+        self.request.reply_to.identity()
    }

-    fn request_as_bytes(&self) -> Result<Vec<u8>, SignatureError> {
+    fn request(&self) -> Result<Vec<u8>, SignatureError> {
        self.request
            .to_bytes()
            .map_err(|error| SignatureError::RequestSerializationError {
@@ -326,7 +306,7 @@ pub struct DynamicConnectRequest {
 impl DynamicConnectRequest {
    pub fn to_bytes(&self) -> Result<Vec<u8>, bincode::Error> {
        use bincode::Options;
-        crate::make_bincode_serializer().serialize(self)
+        make_bincode_serializer().serialize(self)
    }
 }

@@ -337,11 +317,11 @@ pub struct SignedDynamicConnectRequest {
 }

 impl SignedRequest for SignedDynamicConnectRequest {
-    fn identity(&self) -> Option<&identity::PublicKey> {
-        Some(self.request.reply_to.identity())
+    fn identity(&self) -> &identity::PublicKey {
+        self.request.reply_to.identity()
    }

-    fn request_as_bytes(&self) -> Result<Vec<u8>, SignatureError> {
+    fn request(&self) -> Result<Vec<u8>, SignatureError> {
        self.request
            .to_bytes()
            .map_err(|error| SignatureError::RequestSerializationError {
@@ -375,7 +355,7 @@ pub struct DisconnectRequest {
 impl DisconnectRequest {
    pub fn to_bytes(&self) -> Result<Vec<u8>, bincode::Error> {
        use bincode::Options;
-        crate::make_bincode_serializer().serialize(self)
+        make_bincode_serializer().serialize(self)
    }
 }

@@ -386,11 +366,11 @@ pub struct SignedDisconnectRequest {
 }

 impl SignedRequest for SignedDisconnectRequest {
-    fn identity(&self) -> Option<&identity::PublicKey> {
-        Some(self.request.reply_to.identity())
+    fn identity(&self) -> &identity::PublicKey {
+        self.request.reply_to.identity()
    }

-    fn request_as_bytes(&self) -> Result<Vec<u8>, SignatureError> {
+    fn request(&self) -> Result<Vec<u8>, SignatureError> {
        self.request
            .to_bytes()
            .map_err(|error| SignatureError::RequestSerializationError {
@@ -1,7 +1,6 @@
 use std::time::Duration;

-use nym_crypto::asymmetric::ed25519;
-use time::OffsetDateTime;
+use nym_crypto::asymmetric::identity;

 // For reply protection, if a request is older than this, it will be rejected
 const MAX_REQUEST_AGE: Duration = Duration::from_secs(10);
@@ -23,37 +22,29 @@ pub enum SignatureError {
    #[error("signature verification failed")]
    VerificationFailed {
        message: String,
-        error: ed25519::SignatureError,
+        error: identity::SignatureError,
    },
 }

 pub trait SignedRequest {
-    fn identity(&self) -> Option<&ed25519::PublicKey>;
+    fn identity(&self) -> &identity::PublicKey;

-    fn request_as_bytes(&self) -> Result<Vec<u8>, SignatureError>;
+    fn request(&self) -> Result<Vec<u8>, SignatureError>;

-    fn signature(&self) -> Option<&ed25519::Signature>;
+    fn signature(&self) -> Option<&identity::Signature>;

-    fn timestamp(&self) -> OffsetDateTime;
+    fn timestamp(&self) -> time::OffsetDateTime;

    fn verify(&self) -> Result<(), SignatureError> {
-        let identity = match self.identity() {
-            Some(identity) => identity,
-            None => {
-                // If we are not revealing our identity, we don't need to verify anything
-                return Ok(());
-            }
-        };
-
        if let Some(signature) = self.signature() {
            // First check that the request is recent enough
-            if OffsetDateTime::now_utc() - self.timestamp() > MAX_REQUEST_AGE {
+            if time::OffsetDateTime::now_utc() - self.timestamp() > MAX_REQUEST_AGE {
                return Err(SignatureError::RequestOutOfDate);
            }

-            let request_as_bytes = self.request_as_bytes()?;
+            let request_as_bytes = self.request()?;

-            identity
+            self.identity()
                .verify(request_as_bytes, signature)
                .map_err(|error| SignatureError::VerificationFailed {
                    message: "signature verification failed".to_string(),
@@ -1,4 +0,0 @@
-pub mod request;
-pub mod response;
-
-pub const VERSION: u8 = 8;
@@ -1,304 +0,0 @@
-use std::fmt;
-
-use nym_service_provider_requests_common::{Protocol, ServiceProviderType};
-use serde::{Deserialize, Serialize};
-use time::OffsetDateTime;
-
-use super::VERSION;
-
-#[derive(Clone, Debug, Serialize, Deserialize, PartialEq)]
-pub struct IpPacketRequest {
-    pub protocol: Protocol,
-    pub data: IpPacketRequestData,
-}
-
-#[derive(Clone, Debug, Serialize, Deserialize, PartialEq)]
-pub enum IpPacketRequestData {
-    Data(DataRequest),
-    Control(Box<ControlRequest>),
-}
-
-#[derive(Clone, Debug, Serialize, Deserialize, PartialEq)]
-pub enum ControlRequest {
-    Connect(ConnectRequest),
-    Disconnect(DisconnectRequest),
-    Ping(PingRequest),
-    Health(HealthRequest),
-}
-
-// A data request is when the client wants to send an IP packet to a destination.
-#[derive(Clone, Debug, Serialize, Deserialize, PartialEq)]
-pub struct DataRequest {
-    pub ip_packets: bytes::Bytes,
-}
-
-// A dynamic connect request is when the client does not provide the internal IP address it will use
-// on the ip packet router, and instead requests one to be assigned to it.
-#[derive(Clone, Debug, Serialize, Deserialize, PartialEq)]
-pub struct ConnectRequest {
-    pub request_id: u64,
-
-    // The maximum time in milliseconds the IPR should wait when filling up a mix packet
-    // with ip packets.
-    pub buffer_timeout: Option<u64>,
-
-    // Timestamp of when the request was sent by the client.
-    pub timestamp: OffsetDateTime,
-}
-
-// A disconnect request is when the client wants to disconnect from the ip packet router and free
-// up the allocated IP address.
-#[derive(Clone, Debug, Serialize, Deserialize, PartialEq)]
-pub struct DisconnectRequest {
-    pub request_id: u64,
-
-    // Timestamp of when the request was sent by the client.
-    pub timestamp: OffsetDateTime,
-}
-
-// A ping request is when the client wants to check if the ip packet router is still alive.
-#[derive(Clone, Debug, Serialize, Deserialize, PartialEq)]
-pub struct PingRequest {
-    pub request_id: u64,
-
-    // Timestamp of when the request was sent by the client.
-    pub timestamp: OffsetDateTime,
-}
-
-#[derive(Clone, Debug, Serialize, Deserialize, PartialEq)]
-pub struct HealthRequest {
-    pub request_id: u64,
-
-    // Timestamp of when the request was sent by the client.
-    pub timestamp: OffsetDateTime,
-}
-
-impl IpPacketRequest {
-    pub fn new_connect_request(buffer_timeout: Option<u64>) -> (Self, u64) {
-        let protocol = Protocol {
-            version: VERSION,
-            service_provider_type: ServiceProviderType::IpPacketRouter,
-        };
-        let request_id = rand::random();
-        let timestamp = OffsetDateTime::now_utc();
-        let connect = ConnectRequest {
-            request_id,
-            buffer_timeout,
-            timestamp,
-        };
-        let request = Self {
-            protocol,
-            data: IpPacketRequestData::Control(Box::new(ControlRequest::Connect(connect))),
-        };
-        (request, request_id)
-    }
-
-    pub fn new_disconnect_request() -> (Self, u64) {
-        let protocol = Protocol {
-            version: VERSION,
-            service_provider_type: ServiceProviderType::IpPacketRouter,
-        };
-        let request_id = rand::random();
-        let timestamp = OffsetDateTime::now_utc();
-        let disconnect = DisconnectRequest {
-            request_id,
-            timestamp,
-        };
-        let request = Self {
-            protocol,
-            data: IpPacketRequestData::Control(Box::new(ControlRequest::Disconnect(disconnect))),
-        };
-        (request, request_id)
-    }
-
-    pub fn new_data_request(ip_packets: bytes::Bytes) -> Self {
-        Self {
-            protocol: Protocol {
-                version: VERSION,
-                service_provider_type: ServiceProviderType::IpPacketRouter,
-            },
-            data: IpPacketRequestData::Data(DataRequest { ip_packets }),
-        }
-    }
-
-    pub fn new_ping() -> (Self, u64) {
-        let protocol = Protocol {
-            version: VERSION,
-            service_provider_type: ServiceProviderType::IpPacketRouter,
-        };
-        let request_id = rand::random();
-        let timestamp = OffsetDateTime::now_utc();
-        let ping_request = PingRequest {
-            request_id,
-            timestamp,
-        };
-        let request = Self {
-            protocol,
-            data: IpPacketRequestData::Control(Box::new(ControlRequest::Ping(ping_request))),
-        };
-        (request, request_id)
-    }
-
-    pub fn new_health_request() -> (Self, u64) {
-        let protocol = Protocol {
-            version: VERSION,
-            service_provider_type: ServiceProviderType::IpPacketRouter,
-        };
-        let request_id = rand::random();
-        let timestamp = OffsetDateTime::now_utc();
-        let health_request = HealthRequest {
-            request_id,
-            timestamp,
-        };
-        let request = Self {
-            protocol,
-            data: IpPacketRequestData::Control(Box::new(ControlRequest::Health(health_request))),
-        };
-        (request, request_id)
-    }
-
-    pub fn id(&self) -> Option<u64> {
-        match self.data {
-            IpPacketRequestData::Control(ref c) => Some(c.id()),
-            IpPacketRequestData::Data(_) => None,
-        }
-    }
-
-    pub fn to_bytes(&self) -> Result<Vec<u8>, bincode::Error> {
-        use bincode::Options;
-        crate::make_bincode_serializer().serialize(self)
-    }
-
-    pub fn from_reconstructed_message(
-        message: &nym_sphinx::receiver::ReconstructedMessage,
-    ) -> Result<Self, bincode::Error> {
-        use bincode::Options;
-        crate::make_bincode_serializer().deserialize(&message.message)
-    }
-}
-
-impl fmt::Display for IpPacketRequest {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        write!(
-            f,
-            "IpPacketRequest {{ version: {}, data: {} }}",
-            self.protocol.version, self.data
-        )
-    }
-}
-
-impl fmt::Display for IpPacketRequestData {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        match self {
-            IpPacketRequestData::Data(_) => write!(f, "Data"),
-            IpPacketRequestData::Control(c) => write!(f, "Control({})", c),
-        }
-    }
-}
-
-impl ControlRequest {
-    fn id(&self) -> u64 {
-        match self {
-            ControlRequest::Connect(request) => request.request_id,
-            ControlRequest::Disconnect(request) => request.request_id,
-            ControlRequest::Ping(request) => request.request_id,
-            ControlRequest::Health(request) => request.request_id,
-        }
-    }
-}
-
-impl fmt::Display for ControlRequest {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        match self {
-            ControlRequest::Connect(_) => write!(f, "Connect"),
-            ControlRequest::Disconnect(_) => write!(f, "Disconnect"),
-            ControlRequest::Ping(_) => write!(f, "Ping"),
-            ControlRequest::Health(_) => write!(f, "Health"),
-        }
-    }
-}
-
-impl ConnectRequest {
-    pub fn to_bytes(&self) -> Result<Vec<u8>, bincode::Error> {
-        use bincode::Options;
-        crate::make_bincode_serializer().serialize(self)
-    }
-}
-
-impl DisconnectRequest {
-    pub fn to_bytes(&self) -> Result<Vec<u8>, bincode::Error> {
-        use bincode::Options;
-        crate::make_bincode_serializer().serialize(self)
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use time::macros::datetime;
-
-    use super::*;
-
-    #[test]
-    fn check_size_of_request() {
-        let connect = IpPacketRequest {
-            protocol: Protocol {
-                version: 4,
-                service_provider_type: ServiceProviderType::IpPacketRouter,
-            },
-            data: IpPacketRequestData::Control(Box::new(ControlRequest::Connect(ConnectRequest {
-                request_id: 123,
-                buffer_timeout: None,
-                timestamp: datetime!(2024-01-01 12:59:59.5 UTC),
-            }))),
-        };
-        assert_eq!(connect.to_bytes().unwrap().len(), 21);
-    }
-
-    #[test]
-    fn check_size_of_data() {
-        let data = IpPacketRequest {
-            protocol: Protocol {
-                version: 4,
-                service_provider_type: ServiceProviderType::IpPacketRouter,
-            },
-            data: IpPacketRequestData::Data(DataRequest {
-                ip_packets: bytes::Bytes::from(vec![1u8; 32]),
-            }),
-        };
-        assert_eq!(data.to_bytes().unwrap().len(), 36);
-    }
-
-    #[test]
-    fn serialize_and_deserialize_data_request() {
-        let data = IpPacketRequest {
-            protocol: Protocol {
-                version: 4,
-                service_provider_type: ServiceProviderType::IpPacketRouter,
-            },
-            data: IpPacketRequestData::Data(DataRequest {
-                ip_packets: bytes::Bytes::from(vec![1, 2, 4, 2, 5]),
-            }),
-        };
-
-        let serialized = data.to_bytes().unwrap();
-        let deserialized = IpPacketRequest::from_reconstructed_message(
-            &nym_sphinx::receiver::ReconstructedMessage {
-                message: serialized,
-                sender_tag: None,
-            },
-        )
-        .unwrap();
-
-        assert_eq!(deserialized.protocol.version, 4);
-        assert_eq!(
-            deserialized.protocol.service_provider_type,
-            ServiceProviderType::IpPacketRouter
-        );
-        assert_eq!(
-            deserialized.data,
-            IpPacketRequestData::Data(DataRequest {
-                ip_packets: bytes::Bytes::from(vec![1, 2, 4, 2, 5]),
-            })
-        );
-    }
-}
@@ -1,219 +0,0 @@
-use nym_bin_common::build_information::BinaryBuildInformationOwned;
-use serde::{Deserialize, Serialize};
-
-use crate::{make_bincode_serializer, IpPair};
-
-use super::VERSION;
-
-#[derive(Clone, Debug, Serialize, Deserialize)]
-pub struct IpPacketResponse {
-    pub version: u8,
-    pub data: IpPacketResponseData,
-}
-
-#[derive(Clone, Debug, Serialize, Deserialize)]
-pub enum IpPacketResponseData {
-    Data(DataResponse),
-    Control(Box<ControlResponse>),
-}
-
-#[derive(Clone, Debug, Serialize, Deserialize)]
-pub struct DataResponse {
-    pub ip_packet: bytes::Bytes,
-}
-
-#[derive(Clone, Debug, Serialize, Deserialize)]
-pub enum ControlResponse {
-    // Response for a connect request
-    Connect(ConnectResponse),
-
-    // Response for a disconnect initiqated by the client
-    Disconnect(DisconnectResponse),
-
-    // Message from the server that the client got disconnected without the client initiating it
-    UnrequestedDisconnect(UnrequestedDisconnect),
-
-    // Response to ping request
-    Pong(PongResponse),
-
-    // Response for a health request
-    Health(Box<HealthResponse>),
-
-    // Info response. This can be anything from informative messages to errors
-    Info(InfoResponse),
-}
-
-#[derive(Clone, Debug, Serialize, Deserialize)]
-pub struct ConnectResponse {
-    pub request_id: u64,
-    pub reply: ConnectResponseReply,
-}
-
-#[derive(Clone, Debug, Serialize, Deserialize)]
-pub enum ConnectResponseReply {
-    Success(ConnectSuccess),
-    Failure(ConnectFailureReason),
-}
-
-#[derive(Clone, Debug, Serialize, Deserialize)]
-pub struct ConnectSuccess {
-    pub ips: IpPair,
-}
-
-#[derive(Clone, Debug, Serialize, Deserialize, thiserror::Error)]
-pub enum ConnectFailureReason {
-    #[error("client is already connected")]
-    ClientAlreadyConnected,
-
-    #[error("no available ip address")]
-    NoAvailableIp,
-
-    #[error("{0}")]
-    Other(String),
-}
-
-#[derive(Clone, Debug, Serialize, Deserialize)]
-pub struct DisconnectResponse {
-    pub request_id: u64,
-    pub reply: DisconnectResponseReply,
-}
-
-#[derive(Clone, Debug, Serialize, Deserialize)]
-pub enum DisconnectResponseReply {
-    Success,
-    Failure(DisconnectFailureReason),
-}
-
-#[derive(Clone, Debug, Serialize, Deserialize, thiserror::Error)]
-pub enum DisconnectFailureReason {
-    #[error("client is not connected")]
-    ClientNotConnected,
-
-    #[error("{0}")]
-    Other(String),
-}
-
-#[derive(Clone, Debug, Serialize, Deserialize)]
-pub struct UnrequestedDisconnect {
-    pub reason: UnrequestedDisconnectReason,
-}
-
-#[derive(Clone, Debug, Serialize, Deserialize, thiserror::Error)]
-pub enum UnrequestedDisconnectReason {
-    #[error("client mixnet traffic timeout")]
-    ClientMixnetTrafficTimeout,
-
-    #[error("client tun traffic timeout")]
-    ClientTunTrafficTimeout,
-
-    #[error("{0}")]
-    Other(String),
-}
-
-#[derive(Clone, Debug, Serialize, Deserialize)]
-pub struct PongResponse {
-    pub request_id: u64,
-}
-
-#[derive(Clone, Debug, Serialize, Deserialize)]
-pub struct HealthResponse {
-    pub request_id: u64,
-    pub reply: HealthResponseReply,
-}
-
-#[derive(Clone, Debug, Serialize, Deserialize)]
-pub struct HealthResponseReply {
-    // Return the binary build information of the IPR
-    pub build_info: BinaryBuildInformationOwned,
-
-    // Return if the IPR has performed a successful routing test.
-    pub routable: Option<bool>,
-}
-
-#[derive(Clone, Debug, Serialize, Deserialize)]
-pub struct InfoResponse {
-    pub request_id: u64,
-    pub reply: InfoResponseReply,
-    pub level: InfoLevel,
-}
-
-#[derive(Clone, Debug, Serialize, Deserialize, thiserror::Error)]
-pub enum InfoResponseReply {
-    #[error("{msg}")]
-    Generic { msg: String },
-
-    #[error(
-        "version mismatch: response is v{request_version} and response is v{response_version}"
-    )]
-    VersionMismatch {
-        request_version: u8,
-        response_version: u8,
-    },
-
-    #[error("destination failed exit policy filter check: {dst}")]
-    ExitPolicyFilterCheckFailed { dst: String },
-}
-
-#[derive(Clone, Debug, Serialize, Deserialize)]
-pub enum InfoLevel {
-    Info,
-    Warn,
-    Error,
-}
-
-impl IpPacketResponse {
-    pub fn new_ip_packet(ip_packet: bytes::Bytes) -> Self {
-        Self {
-            version: VERSION,
-            data: IpPacketResponseData::Data(DataResponse { ip_packet }),
-        }
-    }
-
-    pub fn id(&self) -> Option<u64> {
-        match &self.data {
-            IpPacketResponseData::Data(_) => None,
-            IpPacketResponseData::Control(response) => response.id(),
-        }
-    }
-
-    pub fn to_bytes(&self) -> Result<Vec<u8>, bincode::Error> {
-        use bincode::Options;
-        make_bincode_serializer().serialize(self)
-    }
-
-    pub fn from_reconstructed_message(
-        message: &nym_sphinx::receiver::ReconstructedMessage,
-    ) -> Result<Self, bincode::Error> {
-        use bincode::Options;
-        make_bincode_serializer().deserialize(&message.message)
-    }
-}
-
-impl IpPacketResponseData {
-    pub fn to_bytes(&self) -> Result<Vec<u8>, bincode::Error> {
-        use bincode::Options;
-        make_bincode_serializer().serialize(self)
-    }
-}
-
-impl ControlResponse {
-    fn id(&self) -> Option<u64> {
-        match self {
-            ControlResponse::Connect(response) => Some(response.request_id),
-            ControlResponse::Disconnect(response) => Some(response.request_id),
-            ControlResponse::UnrequestedDisconnect(_) => None,
-            ControlResponse::Pong(response) => Some(response.request_id),
-            ControlResponse::Health(response) => Some(response.request_id),
-            ControlResponse::Info(response) => Some(response.request_id),
-        }
-    }
-}
-
-impl ConnectResponseReply {
-    pub fn is_success(&self) -> bool {
-        match self {
-            ConnectResponseReply::Success(_) => true,
-            ConnectResponseReply::Failure(_) => false,
-        }
-    }
-}
@@ -15,10 +15,10 @@ bls12_381 = { workspace = true, features = ["alloc", "pairings", "experimental",
 bincode.workspace = true
 cfg-if.workspace = true
 itertools = { workspace = true }
-digest = { workspace = true }
+digest = "0.9"
 rand = { workspace = true }
 thiserror = { workspace = true }
-sha2 = { workspace = true }
+sha2 = "0.9"
 bs58 = { workspace = true }
 serde = { workspace = true, features = ["derive"] }
 rayon = { workspace = true, optional = true }
@@ -113,13 +113,17 @@ const G1_HASH_DOMAIN: &[u8] = b"NYMECASH-V01-CS02-with-BLS12381G1_XMD:SHA-256_SS
 const SCALAR_HASH_DOMAIN: &[u8] = b"NYMECASH-V01-CS02-with-expander-SHA256";

 pub fn hash_g1<M: AsRef<[u8]>>(msg: M) -> G1Projective {
-    <G1Projective as HashToCurve<ExpandMsgXmd<sha2::Sha256>>>::hash_to_curve([msg], G1_HASH_DOMAIN)
+    <G1Projective as HashToCurve<ExpandMsgXmd<sha2::Sha256>>>::hash_to_curve(msg, G1_HASH_DOMAIN)
 }

 pub fn hash_to_scalar<M: AsRef<[u8]>>(msg: M) -> Scalar {
    let mut output = vec![Scalar::zero()];

-    Scalar::hash_to_field::<ExpandMsgXmd<sha2::Sha256>, _>([msg], SCALAR_HASH_DOMAIN, &mut output);
+    Scalar::hash_to_field::<ExpandMsgXmd<sha2::Sha256>>(
+        msg.as_ref(),
+        SCALAR_HASH_DOMAIN,
+        &mut output,
+    );
    output[0]
 }

@@ -397,75 +401,4 @@ mod tests {
        assert_eq!(hash_to_scalar(msg2), hash_to_scalar(msg2));
        assert_ne!(hash_to_scalar(msg1), hash_to_scalar(msg2));
    }
-
-    #[test]
-    fn test_hash_to_scalar() {
-        let msg1 = "foo";
-        let expected1 = Scalar::from_bytes(&[
-            253, 57, 224, 227, 175, 195, 226, 82, 46, 175, 33, 126, 171, 239, 255, 92, 108, 168, 6,
-            79, 90, 11, 235, 236, 221, 10, 85, 133, 42, 81, 95, 30,
-        ])
-        .unwrap();
-
-        let msg2 = "bar";
-        let expected2 = Scalar::from_bytes(&[
-            48, 83, 69, 52, 42, 18, 135, 244, 211, 190, 160, 196, 118, 154, 24, 126, 0, 125, 72,
-            201, 170, 225, 123, 201, 52, 120, 171, 132, 235, 182, 20, 26,
-        ])
-        .unwrap();
-
-        let msg3 = [
-            33, 135, 76, 234, 71, 35, 247, 216, 39, 242, 42, 88, 152, 29, 74, 135, 9, 29, 216, 123,
-            250, 87, 108, 29, 245, 126, 109, 102, 84, 71, 158, 224, 145, 243, 49, 121, 244, 27,
-            115, 121, 25, 66, 216, 67, 97, 101, 140, 160, 77, 239, 114, 215, 152, 48, 15, 231, 101,
-            60, 42, 92, 128, 131, 161, 43,
-        ];
-        let expected3 = Scalar::from_bytes(&[
-            128, 189, 8, 43, 186, 55, 52, 61, 171, 196, 159, 177, 162, 100, 27, 143, 85, 83, 218,
-            171, 91, 220, 155, 25, 7, 38, 2, 36, 4, 93, 136, 4,
-        ])
-        .unwrap();
-
-        assert_eq!(hash_to_scalar(msg1), expected1);
-        assert_eq!(hash_to_scalar(msg2), expected2);
-        assert_eq!(hash_to_scalar(msg3), expected3);
-    }
-
-    #[test]
-    fn test_hash_to_g1() {
-        let msg1 = "foo";
-        let expected1 = G1Affine::from_compressed(&[
-            161, 109, 186, 0, 192, 221, 83, 87, 71, 31, 120, 201, 185, 35, 62, 239, 46, 120, 117,
-            150, 191, 227, 128, 161, 78, 201, 207, 167, 86, 181, 229, 115, 2, 6, 178, 16, 251, 118,
-            219, 115, 184, 96, 2, 10, 31, 63, 150, 70,
-        ])
-        .unwrap()
-        .into();
-
-        let msg2 = "bar";
-        let expected2 = G1Affine::from_compressed(&[
-            135, 102, 204, 42, 221, 49, 209, 192, 250, 87, 59, 255, 197, 93, 37, 113, 38, 2, 154,
-            233, 68, 234, 206, 182, 121, 212, 166, 210, 74, 155, 190, 33, 203, 237, 176, 60, 249,
-            241, 53, 170, 18, 168, 49, 35, 1, 151, 205, 174,
-        ])
-        .unwrap()
-        .into();
-        let msg3 = [
-            33, 135, 76, 234, 71, 35, 247, 216, 39, 242, 42, 88, 152, 29, 74, 135, 9, 29, 216, 123,
-            250, 87, 108, 29, 245, 126, 109, 102, 84, 71, 158, 224, 145, 243, 49, 121, 244, 27,
-            115, 121, 25, 66, 216, 67, 97, 101, 140, 160, 77, 239, 114, 215, 152, 48, 15, 231, 101,
-            60, 42, 92, 128, 131, 161, 43,
-        ];
-        let expected3 = G1Affine::from_compressed(&[
-            184, 200, 211, 115, 47, 45, 39, 185, 105, 9, 222, 247, 132, 241, 121, 130, 238, 224,
-            155, 109, 105, 201, 137, 154, 132, 149, 214, 233, 136, 69, 77, 132, 174, 30, 46, 123,
-            20, 92, 219, 18, 45, 29, 208, 127, 158, 145, 130, 41,
-        ])
-        .unwrap()
-        .into();
-
-        assert_eq!(hash_g1(msg1), expected1);
-        assert_eq!(hash_g1(msg2), expected2);
-        assert_eq!(hash_g1(msg3), expected3);
-    }
 }
@@ -0,0 +1,48 @@
+[package]
+name = "nym-coconut"
+version = "0.5.0"
+authors = ["Jedrzej Stuczynski <andrew@nymtech.net>", "Ania Piotrowska <ania@nymtech.net>"]
+edition = "2021"
+license.workspace = true
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+bls12_381 = { workspace = true, default-features = false, features = ["pairings", "alloc", "experimental"] }
+itertools = { workspace = true }
+digest = "0.9"
+rand = { workspace = true }
+thiserror = { workspace = true }
+serde = { workspace = true }
+serde_derive = { workspace = true }
+bs58 = { workspace = true }
+sha2 = "0.9"
+zeroize = { workspace = true, optional = true }
+
+nym-dkg = { path = "../dkg" }
+nym-pemstore = { path = "../pemstore" }
+
+[dependencies.ff]
+workspace = true
+default-features = false
+
+[dependencies.group]
+workspace = true
+default-features = false
+
+[dev-dependencies]
+criterion = { workspace = true, features = ["html_reports"] }
+doc-comment = { workspace = true }
+rand_chacha = { workspace = true }
+
+[[bench]]
+name = "benchmarks"
+harness = false
+
+[features]
+key-zeroize = ["zeroize", "bls12_381/zeroize"]
+default = []
+
+
+[target.'cfg(target_env = "wasm32-unknown-unknown")'.dependencies]
+getrandom = { version="0.2", features=["js"] }
@@ -0,0 +1 @@
+This project was partially funded through the NGI0 PET Fund, a fund established by NL.net with financial support from the European Commission's NGI programme, under the aegis of DG Communications Networks, Content and Technology under grant agreement No 825310.
@@ -0,0 +1,360 @@
+// Copyright 2021 - Nym Technologies SA <contact@nymtech.net>
+// SPDX-License-Identifier: Apache-2.0
+
+use bls12_381::{multi_miller_loop, G1Affine, G1Projective, G2Affine, G2Prepared, Scalar};
+use criterion::{criterion_group, criterion_main, Criterion};
+use ff::Field;
+use group::{Curve, Group};
+use nym_coconut::{
+    aggregate_signature_shares_and_verify, aggregate_verification_keys, blind_sign,
+    prepare_blind_sign, prove_bandwidth_credential, random_scalars_refs, setup, ttp_keygen,
+    verify_credential, verify_partial_blind_signature, Attribute, BlindedSignature, Parameters,
+    Signature, SignatureShare, VerificationKey,
+};
+use rand::seq::SliceRandom;
+use std::ops::Neg;
+use std::time::Duration;
+
+#[allow(unused)]
+fn double_pairing(g11: &G1Affine, g21: &G2Affine, g12: &G1Affine, g22: &G2Affine) {
+    let gt1 = bls12_381::pairing(g11, g21);
+    let gt2 = bls12_381::pairing(g12, g22);
+    assert_eq!(gt1, gt2)
+}
+
+#[allow(unused)]
+fn multi_miller_pairing_affine(g11: &G1Affine, g21: &G2Affine, g12: &G1Affine, g22: &G2Affine) {
+    let miller_loop_result = multi_miller_loop(&[
+        (g11, &G2Prepared::from(*g21)),
+        (&g12.neg(), &G2Prepared::from(*g22)),
+    ]);
+    assert!(bool::from(
+        miller_loop_result.final_exponentiation().is_identity()
+    ))
+}
+
+#[allow(unused)]
+fn bench_pairings(c: &mut Criterion) {
+    let mut rng = rand::thread_rng();
+
+    let g1 = G1Affine::generator();
+    let g2 = G2Affine::generator();
+    let r = Scalar::random(&mut rng);
+    let s = Scalar::random(&mut rng);
+
+    let g11 = (g1 * r).to_affine();
+    let g21 = (g2 * s).to_affine();
+    let g21_prep = G2Prepared::from(g21);
+
+    let g12 = (g1 * s).to_affine();
+    let g22 = (g2 * r).to_affine();
+    let g22_prep = G2Prepared::from(g22);
+
+    c.bench_function("double pairing", |b| {
+        b.iter(|| double_pairing(&g11, &g21, &g12, &g22))
+    });
+
+    c.bench_function("multi miller in affine", |b| {
+        b.iter(|| multi_miller_pairing_affine(&g11, &g21, &g12, &g22))
+    });
+
+    c.bench_function("multi miller with prepared g2", |b| {
+        b.iter(|| multi_miller_pairing_with_prepared(&g11, &g21_prep, &g12, &g22_prep))
+    });
+
+    c.bench_function("multi miller with semi-prepared g2", |b| {
+        b.iter(|| multi_miller_pairing_with_semi_prepared(&g11, &g21, &g12, &g22_prep))
+    });
+}
+
+#[allow(unused)]
+fn multi_miller_pairing_with_prepared(
+    g11: &G1Affine,
+    g21: &G2Prepared,
+    g12: &G1Affine,
+    g22: &G2Prepared,
+) {
+    let miller_loop_result = multi_miller_loop(&[(g11, g21), (&g12.neg(), g22)]);
+    assert!(bool::from(
+        miller_loop_result.final_exponentiation().is_identity()
+    ))
+}
+
+// the case of being able to prepare G2 generator
+#[allow(unused)]
+fn multi_miller_pairing_with_semi_prepared(
+    g11: &G1Affine,
+    g21: &G2Affine,
+    g12: &G1Affine,
+    g22: &G2Prepared,
+) {
+    let miller_loop_result =
+        multi_miller_loop(&[(g11, &G2Prepared::from(*g21)), (&g12.neg(), g22)]);
+    assert!(bool::from(
+        miller_loop_result.final_exponentiation().is_identity()
+    ))
+}
+
+#[allow(clippy::too_many_arguments)]
+fn unblind_and_aggregate(
+    params: &Parameters,
+    blinded_signatures: &[BlindedSignature],
+    partial_verification_keys: &[VerificationKey],
+    private_attributes: &[&Attribute],
+    public_attributes: &[&Attribute],
+    commitment_hash: &G1Projective,
+    pedersen_commitments_openings: &[Scalar],
+    verification_key: &VerificationKey,
+) -> Signature {
+    // Unblind all partial signatures
+    let unblinded_signatures: Vec<Signature> = blinded_signatures
+        .iter()
+        .zip(partial_verification_keys.iter())
+        .map(|(signature, partial_verification_key)| {
+            signature
+                .unblind_and_verify(
+                    params,
+                    partial_verification_key,
+                    private_attributes,
+                    public_attributes,
+                    commitment_hash,
+                    pedersen_commitments_openings,
+                )
+                .unwrap()
+        })
+        .collect();
+
+    let unblinded_signature_shares: Vec<SignatureShare> = unblinded_signatures
+        .iter()
+        .enumerate()
+        .map(|(idx, signature)| SignatureShare::new(*signature, (idx + 1) as u64))
+        .collect();
+
+    let mut attributes = vec![];
+    attributes.extend_from_slice(private_attributes);
+    attributes.extend_from_slice(public_attributes);
+    aggregate_signature_shares_and_verify(
+        params,
+        verification_key,
+        &attributes,
+        &unblinded_signature_shares,
+    )
+    .unwrap()
+}
+
+struct BenchCase {
+    num_authorities: u64,
+    threshold_p: f32,
+    num_public_attrs: u32,
+    num_private_attrs: u32,
+}
+
+impl BenchCase {
+    fn threshold(&self) -> u64 {
+        (self.num_authorities as f32 * self.threshold_p).round() as u64
+    }
+
+    fn num_attrs(&self) -> u32 {
+        self.num_public_attrs + self.num_private_attrs
+    }
+}
+
+fn bench_coconut(c: &mut Criterion) {
+    let mut group = c.benchmark_group("benchmark-coconut");
+    group.measurement_time(Duration::from_secs(1000));
+    let case = BenchCase {
+        num_authorities: 100,
+        threshold_p: 0.7,
+        num_public_attrs: 2,
+        num_private_attrs: 2,
+    };
+
+    let params = setup(case.num_public_attrs + case.num_private_attrs).unwrap();
+
+    random_scalars_refs!(public_attributes, params, case.num_public_attrs as usize);
+    let serial_number = params.random_scalar();
+    let binding_number = params.random_scalar();
+    let private_attributes = vec![&serial_number, &binding_number];
+
+    // The prepare blind sign is performed by the user
+    let (pedersen_commitments_openings, blind_sign_request) =
+        prepare_blind_sign(&params, &private_attributes, &public_attributes).unwrap();
+
+    // CLIENT BENCHMARK: Data needed to ask for a credential
+    // Let's benchmark the operations the client has to perform
+    // to ask for a credential
+    group.bench_function(
+        format!(
+            "[Client] prepare_blind_sign_{}_authorities_{}_attributes_{}_threshold",
+            case.num_authorities,
+            case.num_attrs(),
+            case.threshold_p,
+        ),
+        |b| {
+            b.iter(|| prepare_blind_sign(&params, &private_attributes, &public_attributes).unwrap())
+        },
+    );
+
+    // keys for the validators
+    let coconut_keypairs = ttp_keygen(&params, case.threshold(), case.num_authorities).unwrap();
+
+    // VALIDATOR BENCHMARK: Issue partial credential
+    // we pick only one key pair, as we want to validate how much does it
+    // take for a single validator to issue a partial credential
+    let mut rng = rand::thread_rng();
+    let keypair = coconut_keypairs.choose(&mut rng).unwrap();
+
+    group.bench_function(
+        format!(
+            "[Validator] compute_single_blind_sign_for_credential_with_{}_attributes",
+            case.num_attrs(),
+        ),
+        |b| {
+            b.iter(|| {
+                blind_sign(
+                    &params,
+                    keypair.secret_key(),
+                    &blind_sign_request,
+                    &public_attributes,
+                )
+                .unwrap()
+            })
+        },
+    );
+
+    // computing all partial credentials
+    // NOTE: in reality, each validator computes only single signature
+    let mut blinded_signatures = Vec::new();
+    for keypair in coconut_keypairs.iter() {
+        let blinded_signature = blind_sign(
+            &params,
+            keypair.secret_key(),
+            &blind_sign_request,
+            &public_attributes,
+        )
+        .unwrap();
+        blinded_signatures.push(blinded_signature)
+    }
+
+    let verification_keys: Vec<VerificationKey> = coconut_keypairs
+        .iter()
+        .map(|keypair| keypair.verification_key().clone())
+        .collect();
+
+    // verify a random partial blind signature
+    let rand_idx = 1;
+    let random_blind_signature = blinded_signatures.get(rand_idx).unwrap();
+    let partial_verification_key = verification_keys.get(rand_idx).unwrap();
+
+    group.bench_function(
+        format!(
+            "verify_partial_blind_signature_{}_private_attributes_{}_public_attributes",
+            case.num_private_attrs, case.num_public_attrs
+        ),
+        |b| {
+            b.iter(|| {
+                verify_partial_blind_signature(
+                    &params,
+                    blind_sign_request.get_private_attributes_pedersen_commitments(),
+                    &public_attributes,
+                    random_blind_signature,
+                    partial_verification_key,
+                )
+            })
+        },
+    );
+
+    // Lets bench worse case, ie aggregating all
+    let indices: Vec<u64> = (1..=case.num_authorities).collect();
+    // aggregate verification keys
+    let aggr_verification_key =
+        aggregate_verification_keys(&verification_keys, Some(&indices)).unwrap();
+
+    // CLIENT OPERATION: Unblind partial singatures and aggregate into single signature
+    let aggregated_signature = unblind_and_aggregate(
+        &params,
+        &blinded_signatures,
+        &verification_keys,
+        &private_attributes,
+        &public_attributes,
+        &blind_sign_request.get_commitment_hash(),
+        &pedersen_commitments_openings,
+        &aggr_verification_key,
+    );
+
+    // CLIENT BENCHMARK: aggregate all partial credentials
+    group.bench_function(
+        format!(
+            "[Client] unblind_and_aggregate_partial_credentials_{}_authorities_{}_attributes_{}_threshold",
+            case.num_authorities,
+            case.num_attrs(),
+            case.threshold_p,
+        ),
+        |b| {
+            b.iter(|| {
+                unblind_and_aggregate(
+                    &params,
+                    &blinded_signatures,
+                    &verification_keys,
+                    &private_attributes,
+                    &public_attributes,
+                    &blind_sign_request.get_commitment_hash(),
+                    &pedersen_commitments_openings,
+                    &aggr_verification_key)
+            })
+        },
+    );
+
+    // CLIENT OPERATION: Randomize credentials and generate any cryptographic material to verify them
+    let theta = prove_bandwidth_credential(
+        &params,
+        &aggr_verification_key,
+        &aggregated_signature,
+        &serial_number,
+        &binding_number,
+    )
+    .unwrap();
+
+    // CLIENT BENCHMARK
+    group.bench_function(
+        format!(
+            "[Client] randomize_and_prove_credential_{}_authorities_{}_attributes_{}_threshold",
+            case.num_authorities,
+            case.num_attrs(),
+            case.threshold_p,
+        ),
+        |b| {
+            b.iter(|| {
+                prove_bandwidth_credential(
+                    &params,
+                    &aggr_verification_key,
+                    &aggregated_signature,
+                    &serial_number,
+                    &binding_number,
+                )
+                .unwrap()
+            })
+        },
+    );
+
+    // VERIFIER OPERATION
+    // Verify credentials
+    verify_credential(&params, &aggr_verification_key, &theta, &public_attributes);
+
+    // VERIFICATION BENCHMARK
+    group.bench_function(
+        format!(
+            "[Verifier] verify_credentials_{}_authorities_{}_attributes_{}_threshold",
+            case.num_authorities,
+            case.num_attrs(),
+            case.threshold_p,
+        ),
+        |b| {
+            b.iter(|| {
+                verify_credential(&params, &aggr_verification_key, &theta, &public_attributes)
+            })
+        },
+    );
+}
+criterion_group!(benches, bench_coconut);
+criterion_main!(benches);
@@ -0,0 +1,354 @@
+// Copyright 2021 - Nym Technologies SA <contact@nymtech.net>
+// SPDX-License-Identifier: Apache-2.0
+
+use core::ops::{Deref, Mul};
+
+use bls12_381::{G1Projective, Scalar};
+use group::Curve;
+use serde_derive::{Deserialize, Serialize};
+
+use crate::error::{CoconutError, Result};
+use crate::scheme::setup::Parameters;
+use crate::traits::{Base58, Bytable};
+use crate::utils::{try_deserialize_g1_projective, try_deserialize_scalar};
+use crate::Attribute;
+
+/// Type alias for the ephemeral key generated during ElGamal encryption
+pub type EphemeralKey = Scalar;
+
+/// Two G1 points representing ElGamal ciphertext
+#[derive(Debug)]
+#[cfg_attr(test, derive(PartialEq, Eq))]
+pub struct Ciphertext(pub(crate) G1Projective, pub(crate) G1Projective);
+
+impl TryFrom<&[u8]> for Ciphertext {
+    type Error = CoconutError;
+
+    fn try_from(bytes: &[u8]) -> Result<Ciphertext> {
+        if bytes.len() != 96 {
+            return Err(CoconutError::Deserialization(format!(
+                "Ciphertext must be exactly 96 bytes, got {}",
+                bytes.len()
+            )));
+        }
+
+        // safety: we just checked for the length so the unwraps are fine
+        #[allow(clippy::unwrap_used)]
+        let c1_bytes: &[u8; 48] = &bytes[..48].try_into().unwrap();
+        #[allow(clippy::unwrap_used)]
+        let c2_bytes: &[u8; 48] = &bytes[48..].try_into().unwrap();
+
+        let c1 = try_deserialize_g1_projective(
+            c1_bytes,
+            CoconutError::Deserialization("Failed to deserialize compressed c1".to_string()),
+        )?;
+        let c2 = try_deserialize_g1_projective(
+            c2_bytes,
+            CoconutError::Deserialization("Failed to deserialize compressed c2".to_string()),
+        )?;
+
+        Ok(Ciphertext(c1, c2))
+    }
+}
+
+impl Ciphertext {
+    pub fn c1(&self) -> &G1Projective {
+        &self.0
+    }
+
+    pub fn c2(&self) -> &G1Projective {
+        &self.1
+    }
+
+    pub fn to_bytes(&self) -> [u8; 96] {
+        let mut bytes = [0u8; 96];
+        bytes[..48].copy_from_slice(&self.0.to_affine().to_compressed());
+        bytes[48..].copy_from_slice(&self.1.to_affine().to_compressed());
+        bytes
+    }
+
+    pub fn from_bytes(bytes: &[u8]) -> Result<Ciphertext> {
+        Ciphertext::try_from(bytes)
+    }
+}
+
+/// PrivateKey used in the ElGamal encryption scheme to recover the plaintext
+#[derive(Debug)]
+#[cfg_attr(test, derive(PartialEq, Eq))]
+pub struct PrivateKey(pub(crate) Scalar);
+
+impl PrivateKey {
+    /// Decrypt takes the ElGamal encryption of a message and returns a point on the G1 curve
+    /// that represents original h^m.
+    pub fn decrypt(&self, ciphertext: &Ciphertext) -> G1Projective {
+        let (c1, c2) = &(ciphertext.0, ciphertext.1);
+
+        // (gamma^k * h^m) / (g1^{d * k})   |   note: gamma = g1^d
+        c2 - c1 * self.0
+    }
+
+    pub fn public_key(&self, params: &Parameters) -> PublicKey {
+        PublicKey(params.gen1() * self.0)
+    }
+
+    pub fn to_bytes(&self) -> [u8; 32] {
+        self.0.to_bytes()
+    }
+
+    pub fn from_bytes(bytes: &[u8; 32]) -> Result<PrivateKey> {
+        try_deserialize_scalar(
+            bytes,
+            CoconutError::Deserialization(
+                "Failed to deserialize ElGamal private key - it was not in the canonical form"
+                    .to_string(),
+            ),
+        )
+        .map(PrivateKey)
+    }
+}
+
+impl Bytable for PrivateKey {
+    fn to_byte_vec(&self) -> Vec<u8> {
+        self.to_bytes().to_vec()
+    }
+
+    fn try_from_byte_slice(slice: &[u8]) -> Result<Self> {
+        let received = slice.len();
+        let Ok(arr) = slice.try_into() else {
+            return Err(CoconutError::UnexpectedArrayLength {
+                typ: "elgamal::PrivateKey".to_string(),
+                received,
+                expected: 32,
+            });
+        };
+
+        PrivateKey::from_bytes(arr)
+    }
+}
+
+impl Base58 for PrivateKey {}
+
+// TODO: perhaps be more explicit and apart from gamma also store generator and group order?
+/// PublicKey used in the ElGamal encryption scheme to produce the ciphertext
+#[derive(Debug, Clone)]
+#[cfg_attr(test, derive(PartialEq, Eq))]
+pub struct PublicKey(G1Projective);
+
+impl PublicKey {
+    /// Encrypt encrypts the given message in the form of h^m,
+    /// where h is a point on the G1 curve using the given public key.
+    /// The random k is returned alongside the encryption
+    /// as it is required by the Coconut Scheme to create proofs of knowledge.
+    pub fn encrypt(
+        &self,
+        params: &Parameters,
+        h: &G1Projective,
+        msg: &Scalar,
+    ) -> (Ciphertext, EphemeralKey) {
+        let k = params.random_scalar();
+        // c1 = g1^k
+        let c1 = params.gen1() * k;
+        // c2 = gamma^k * h^m
+        let c2 = self.0 * k + h * msg;
+
+        (Ciphertext(c1, c2), k)
+    }
+
+    pub fn to_bytes(&self) -> [u8; 48] {
+        self.0.to_affine().to_compressed()
+    }
+
+    pub fn from_bytes(bytes: &[u8; 48]) -> Result<PublicKey> {
+        try_deserialize_g1_projective(
+            bytes,
+            CoconutError::Deserialization(
+                "Failed to deserialize compressed ElGamal public key".to_string(),
+            ),
+        )
+        .map(PublicKey)
+    }
+}
+
+impl Bytable for PublicKey {
+    fn to_byte_vec(&self) -> Vec<u8> {
+        self.to_bytes().into()
+    }
+
+    fn try_from_byte_slice(slice: &[u8]) -> Result<Self> {
+        let received = slice.len();
+        let Ok(arr) = slice.try_into() else {
+            return Err(CoconutError::UnexpectedArrayLength {
+                typ: "elgamal::PublicKey".to_string(),
+                received,
+                expected: 48,
+            });
+        };
+
+        PublicKey::from_bytes(arr)
+    }
+}
+
+impl TryFrom<&[u8]> for PublicKey {
+    type Error = CoconutError;
+
+    fn try_from(slice: &[u8]) -> Result<PublicKey> {
+        PublicKey::try_from_byte_slice(slice)
+    }
+}
+
+impl Base58 for PublicKey {}
+
+impl Deref for PublicKey {
+    type Target = G1Projective;
+
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+
+impl<'a> Mul<&'a Scalar> for &PublicKey {
+    type Output = G1Projective;
+
+    fn mul(self, rhs: &'a Scalar) -> Self::Output {
+        self.0 * rhs
+    }
+}
+
+#[derive(Serialize, Deserialize)]
+/// A convenient wrapper for both keys of the ElGamal keypair
+pub struct ElGamalKeyPair {
+    private_key: PrivateKey,
+    public_key: PublicKey,
+}
+
+impl ElGamalKeyPair {
+    pub fn public_key(&self) -> &PublicKey {
+        &self.public_key
+    }
+
+    pub fn private_key(&self) -> &PrivateKey {
+        &self.private_key
+    }
+}
+
+/// Generate a fresh ElGamal keypair using the group generator specified by the provided [Parameters]
+pub fn elgamal_keygen(params: &Parameters) -> ElGamalKeyPair {
+    let private_key = params.random_scalar();
+    let gamma = params.gen1() * private_key;
+
+    ElGamalKeyPair {
+        private_key: PrivateKey(private_key),
+        public_key: PublicKey(gamma),
+    }
+}
+
+pub fn compute_attribute_encryption(
+    params: &Parameters,
+    private_attributes: &[&Attribute],
+    pub_key: &PublicKey,
+    commitment_hash: G1Projective,
+) -> (Vec<Ciphertext>, Vec<EphemeralKey>) {
+    private_attributes
+        .iter()
+        .map(|m| pub_key.encrypt(params, &commitment_hash, m))
+        .unzip()
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn keygen() {
+        let params = Parameters::default();
+        let keypair = super::elgamal_keygen(&params);
+
+        let expected = params.gen1() * keypair.private_key.0;
+        let gamma = keypair.public_key.0;
+        assert_eq!(
+            expected, gamma,
+            "Public key, gamma, should be equal to g1^d, where d is the private key"
+        );
+    }
+
+    #[test]
+    fn encryption() {
+        let params = Parameters::default();
+        let keypair = super::elgamal_keygen(&params);
+
+        let r = params.random_scalar();
+        let h = params.gen1() * r;
+        let m = params.random_scalar();
+
+        let (ciphertext, ephemeral_key) = keypair.public_key.encrypt(&params, &h, &m);
+
+        let expected_c1 = params.gen1() * ephemeral_key;
+        assert_eq!(expected_c1, ciphertext.0, "c1 should be equal to g1^k");
+
+        let expected_c2 = keypair.public_key.0 * ephemeral_key + h * m;
+        assert_eq!(
+            expected_c2, ciphertext.1,
+            "c2 should be equal to gamma^k * h^m"
+        );
+    }
+
+    #[test]
+    fn decryption() {
+        let params = Parameters::default();
+        let keypair = super::elgamal_keygen(&params);
+
+        let r = params.random_scalar();
+        let h = params.gen1() * r;
+        let m = params.random_scalar();
+
+        let (ciphertext, _) = keypair.public_key.encrypt(&params, &h, &m);
+        let dec = keypair.private_key.decrypt(&ciphertext);
+
+        let expected = h * m;
+        assert_eq!(
+            expected, dec,
+            "after ElGamal decryption, original h^m should be obtained"
+        );
+    }
+
+    #[test]
+    fn private_key_bytes_roundtrip() {
+        let params = Parameters::default();
+        let private_key = PrivateKey(params.random_scalar());
+        let bytes = private_key.to_bytes();
+
+        // also make sure it is equivalent to the internal scalar's bytes
+        assert_eq!(private_key.0.to_bytes(), bytes);
+        assert_eq!(private_key, PrivateKey::from_bytes(&bytes).unwrap())
+    }
+
+    #[test]
+    fn public_key_bytes_roundtrip() {
+        let params = Parameters::default();
+        let r = params.random_scalar();
+        let public_key = PublicKey(params.gen1() * r);
+        let bytes = public_key.to_bytes();
+
+        // also make sure it is equivalent to the internal g1 compressed bytes
+        assert_eq!(public_key.0.to_affine().to_compressed(), bytes);
+        assert_eq!(public_key, PublicKey::from_bytes(&bytes).unwrap())
+    }
+
+    #[test]
+    fn ciphertext_bytes_roundtrip() {
+        let params = Parameters::default();
+        let r = params.random_scalar();
+        let s = params.random_scalar();
+        let ciphertext = Ciphertext(params.gen1() * r, params.gen1() * s);
+        let bytes = ciphertext.to_bytes();
+
+        // also make sure it is equivalent to the internal g1 compressed bytes concatenated
+        let expected_bytes = [
+            ciphertext.0.to_affine().to_compressed(),
+            ciphertext.1.to_affine().to_compressed(),
+        ]
+        .concat();
+        assert_eq!(expected_bytes, bytes);
+        assert_eq!(ciphertext, Ciphertext::try_from(&bytes[..]).unwrap())
+    }
+}
@@ -0,0 +1,69 @@
+// Copyright 2021 - Nym Technologies SA <contact@nymtech.net>
+// SPDX-License-Identifier: Apache-2.0
+
+use thiserror::Error;
+
+/// A `Result` alias where the `Err` case is `coconut_rs::Error`.
+pub type Result<T> = std::result::Result<T, CoconutError>;
+
+#[derive(Error, Debug)]
+pub enum CoconutError {
+    #[error("Setup error: {0}")]
+    Setup(String),
+
+    #[error("encountered error during keygen")]
+    Keygen,
+
+    #[error("Issuance related error: {0}")]
+    Issuance(String),
+
+    #[error("Tried to prepare blind sign request for higher than specified number of attributes (max: {}, requested: {})", max, requested)]
+    IssuanceMaxAttributes { max: usize, requested: usize },
+
+    #[error("Interpolation error: {0}")]
+    Interpolation(String),
+
+    #[error("Aggregation error: {0}")]
+    Aggregation(String),
+
+    #[error("Unblind error: {0}")]
+    Unblind(String),
+
+    #[error("Verification error: {0}")]
+    Verification(String),
+
+    #[error("Deserialization error: {0}")]
+    Deserialization(String),
+
+    #[error(
+        "Deserailization error, expected at least {} bytes, got {}",
+        min,
+        actual
+    )]
+    DeserializationMinLength { min: usize, actual: usize },
+
+    #[error("Tried to deserialize {object} with bytes of invalid length. Expected {actual} < {object} or {modulus_target} % {modulus} == 0")]
+    DeserializationInvalidLength {
+        actual: usize,
+        target: usize,
+        modulus_target: usize,
+        modulus: usize,
+        object: String,
+    },
+
+    #[error("received an array of unexpected size for deserialization of {typ}. got {received} but expected {expected}")]
+    UnexpectedArrayLength {
+        typ: String,
+        received: usize,
+        expected: usize,
+    },
+
+    #[error("failed to decode the base58 representation: {0}")]
+    Base58DecodingFailure(#[from] bs58::decode::Error),
+
+    #[error("failed to deserialize scalar from the received bytes - it might not have been canonically encoded")]
+    ScalarDeserializationFailure,
+
+    #[error("failed to deserialize G1Projective point from the received bytes - it might not have been canonically encoded")]
+    G1ProjectiveDeserializationFailure,
+}
@@ -0,0 +1,15 @@
+use crate::{BlindSignRequest, BlindedSignature, Bytable, VerifyCredentialRequest};
+
+macro_rules! impl_clone {
+    ($struct:ident) => {
+        impl Clone for $struct {
+            fn clone(&self) -> Self {
+                Self::try_from_byte_slice(&self.to_byte_vec()).unwrap()
+            }
+        }
+    };
+}
+
+impl_clone!(BlindSignRequest);
+impl_clone!(BlindedSignature);
+impl_clone!(VerifyCredentialRequest);
@@ -0,0 +1,2 @@
+mod clone;
+mod serde;
@@ -0,0 +1,57 @@
+use crate::elgamal::PrivateKey;
+use crate::scheme::SecretKey;
+use crate::{
+    Base58, BlindSignRequest, BlindedSignature, PublicKey, Signature, VerificationKey,
+    VerifyCredentialRequest,
+};
+use serde::de::Unexpected;
+use serde::{de::Error, de::Visitor, Deserialize, Deserializer, Serialize, Serializer};
+use std::fmt;
+
+macro_rules! impl_serde {
+    ($struct:ident, $visitor:ident) => {
+        pub struct $visitor {}
+
+        impl Serialize for $struct {
+            fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+            where
+                S: Serializer,
+            {
+                serializer.serialize_str(&self.to_bs58())
+            }
+        }
+
+        impl<'de> Visitor<'de> for $visitor {
+            type Value = $struct;
+
+            fn expecting(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
+                write!(formatter, "A base58 encoded struct")
+            }
+
+            fn visit_str<E: Error>(self, s: &str) -> Result<Self::Value, E> {
+                match $struct::try_from_bs58(s) {
+                    Ok(x) => Ok(x),
+                    Err(_) => Err(Error::invalid_value(Unexpected::Str(s), &self)),
+                }
+            }
+        }
+
+        impl<'de> Deserialize<'de> for $struct {
+            fn deserialize<D>(deserializer: D) -> Result<$struct, D::Error>
+            where
+                D: Deserializer<'de>,
+            {
+                deserializer.deserialize_str($visitor {})
+            }
+        }
+    };
+}
+
+impl_serde!(SecretKey, V1);
+impl_serde!(VerificationKey, V2);
+impl_serde!(PublicKey, V3);
+impl_serde!(PrivateKey, V4);
+impl_serde!(BlindSignRequest, V5);
+impl_serde!(BlindedSignature, V6);
+impl_serde!(Signature, V7);
+impl_serde!(VerifyCredentialRequest, V8);
@@ -0,0 +1,56 @@
+// Copyright 2021 - Nym Technologies SA <contact@nymtech.net>
+// SPDX-License-Identifier: Apache-2.0
+
+#![warn(clippy::expect_used)]
+#![warn(clippy::unwrap_used)]
+
+pub use bls12_381::Scalar;
+pub use elgamal::elgamal_keygen;
+pub use elgamal::ElGamalKeyPair;
+pub use elgamal::PublicKey;
+pub use error::CoconutError;
+pub use scheme::aggregation::aggregate_key_shares;
+pub use scheme::aggregation::aggregate_signature_shares;
+pub use scheme::aggregation::aggregate_signature_shares_and_verify;
+pub use scheme::aggregation::aggregate_verification_keys;
+pub use scheme::issuance::blind_sign;
+pub use scheme::issuance::prepare_blind_sign;
+pub use scheme::issuance::sign;
+pub use scheme::issuance::verify_partial_blind_signature;
+pub use scheme::issuance::BlindSignRequest;
+pub use scheme::keygen::keygen;
+pub use scheme::keygen::ttp_keygen;
+pub use scheme::keygen::KeyPair;
+pub use scheme::keygen::SecretKey;
+pub use scheme::keygen::VerificationKey;
+pub use scheme::keygen::VerificationKeyShare;
+pub use scheme::setup::setup;
+pub use scheme::setup::Parameters;
+pub use scheme::verification::check_vk_pairing;
+pub use scheme::verification::prove_bandwidth_credential;
+pub use scheme::verification::verify;
+pub use scheme::verification::verify_credential;
+pub use scheme::verification::BlindedSerialNumber;
+pub use scheme::verification::VerifyCredentialRequest;
+pub use scheme::BlindedSignature;
+pub use scheme::Signature;
+pub use scheme::SignatureShare;
+pub use scheme::SignerIndex;
+pub use traits::Base58;
+pub use traits::Bytable;
+pub use utils::hash_to_scalar;
+
+pub mod elgamal;
+mod error;
+mod impls;
+mod proofs;
+mod scheme;
+pub mod tests;
+mod traits;
+pub mod utils;
+
+pub type Attribute = bls12_381::Scalar;
+pub type PrivateAttribute = Attribute;
+pub type PublicAttribute = Attribute;
+
+pub use bls12_381::G1Projective;
@@ -0,0 +1,619 @@
+// Copyright 2021 - Nym Technologies SA <contact@nymtech.net>
+// SPDX-License-Identifier: Apache-2.0
+
+// TODO: look at https://crates.io/crates/merlin to perhaps use it instead?
+
+use std::borrow::Borrow;
+
+use bls12_381::{G1Projective, G2Projective, Scalar};
+use digest::generic_array::typenum::Unsigned;
+use digest::Digest;
+use group::GroupEncoding;
+use itertools::izip;
+use sha2::Sha256;
+
+use crate::error::{CoconutError, Result};
+use crate::scheme::issuance::compute_hash;
+use crate::scheme::setup::Parameters;
+use crate::scheme::VerificationKey;
+use crate::utils::{try_deserialize_scalar, try_deserialize_scalar_vec};
+use crate::Attribute;
+
+// as per the reference python implementation
+type ChallengeDigest = Sha256;
+
+#[derive(Debug)]
+#[cfg_attr(test, derive(PartialEq, Eq))]
+pub struct ProofCmCs {
+    challenge: Scalar,
+    response_opening: Scalar,
+    response_openings: Vec<Scalar>,
+    response_attributes: Vec<Scalar>,
+}
+
+// note: this is slightly different from the reference python implementation
+// as we omit the unnecessary string conversion. Instead we concatenate byte
+// representations together and hash that.
+// note2: G1 and G2 elements are using their compressed representations
+// and as per the bls12-381 library all elements are using big-endian form
+/// Generates a Scalar [or Fp] challenge by hashing a number of elliptic curve points.  
+fn compute_challenge<D, I, B>(iter: I) -> Scalar
+where
+    D: Digest,
+    I: Iterator<Item = B>,
+    B: AsRef<[u8]>,
+{
+    let mut h = D::new();
+    for point_representation in iter {
+        h.update(point_representation);
+    }
+    let digest = h.finalize();
+
+    // TODO: I don't like the 0 padding here (though it's what we've been using before,
+    // but we never had a security audit anyway...)
+    // instead we could maybe use the `from_bytes` variant and adding some suffix
+    // when computing the digest until we produce a valid scalar.
+    let mut bytes = [0u8; 64];
+    let pad_size = 64usize
+        .checked_sub(D::OutputSize::to_usize())
+        .unwrap_or_default();
+
+    bytes[pad_size..].copy_from_slice(&digest);
+
+    Scalar::from_bytes_wide(&bytes)
+}
+
+fn produce_response(witness: &Scalar, challenge: &Scalar, secret: &Scalar) -> Scalar {
+    witness - challenge * secret
+}
+
+// note: it's caller's responsibility to ensure witnesses.len() = secrets.len()
+fn produce_responses<S>(witnesses: &[Scalar], challenge: &Scalar, secrets: &[S]) -> Vec<Scalar>
+where
+    S: Borrow<Scalar>,
+{
+    debug_assert_eq!(witnesses.len(), secrets.len());
+
+    witnesses
+        .iter()
+        .zip(secrets.iter())
+        .map(|(w, x)| produce_response(w, challenge, x.borrow()))
+        .collect()
+}
+
+impl ProofCmCs {
+    /// Construct non-interactive zero-knowledge proof of correctness of the ciphertexts and the commitment
+    /// using the Fiat-Shamir heuristic.
+    pub(crate) fn construct(
+        params: &Parameters,
+        commitment: &G1Projective,
+        commitment_opening: &Scalar,
+        commitments: &[G1Projective],
+        pedersen_commitments_openings: &[Scalar],
+        private_attributes: &[&Attribute],
+        public_attributes: &[&Attribute],
+    ) -> Self {
+        // note: this is only called from `prepare_blind_sign` that already checks
+        // whether private attributes are non-empty and whether we don't have too many
+        // attributes in total to sign.
+        // we also know, due to the single call place, that ephemeral_keys.len() == private_attributes.len()
+
+        // witness creation
+        let witness_commitment_opening = params.random_scalar();
+        let witness_pedersen_commitments_openings =
+            params.n_random_scalars(pedersen_commitments_openings.len());
+        let witness_attributes = params.n_random_scalars(private_attributes.len());
+
+        // recompute h
+        let h = compute_hash(*commitment, public_attributes);
+        let hs_bytes = params
+            .gen_hs()
+            .iter()
+            .map(|h| h.to_bytes())
+            .collect::<Vec<_>>();
+
+        let g1 = params.gen1();
+
+        // compute commitments
+
+        // zkp commitment for the attributes commitment cm
+        // Ccm = (wr * g1) + (wm[0] * hs[0]) + ... + (wm[i] * hs[i])
+        let commitment_attributes = g1 * witness_commitment_opening
+            + witness_attributes
+                .iter()
+                .zip(params.gen_hs().iter())
+                .map(|(wm_i, hs_i)| hs_i * wm_i)
+                .sum::<G1Projective>();
+
+        // zkp commitments for the individual attributes
+        let commitments_attributes = witness_pedersen_commitments_openings
+            .iter()
+            .zip(witness_attributes.iter())
+            .map(|(o_j, m_j)| g1 * o_j + h * m_j)
+            .collect::<Vec<_>>();
+
+        let commitments_bytes = commitments
+            .iter()
+            .map(|cm| cm.to_bytes())
+            .collect::<Vec<_>>();
+
+        let commitments_attributes_bytes = commitments_attributes
+            .iter()
+            .map(|cm| cm.to_bytes())
+            .collect::<Vec<_>>();
+
+        // compute challenge
+        let challenge = compute_challenge::<ChallengeDigest, _, _>(
+            std::iter::once(params.gen1().to_bytes().as_ref())
+                .chain(hs_bytes.iter().map(|hs| hs.as_ref()))
+                .chain(std::iter::once(h.to_bytes().as_ref()))
+                .chain(std::iter::once(commitment.to_bytes().as_ref()))
+                .chain(commitments_bytes.iter().map(|cm| cm.as_ref()))
+                .chain(std::iter::once(commitment_attributes.to_bytes().as_ref()))
+                .chain(commitments_attributes_bytes.iter().map(|cm| cm.as_ref())),
+        );
+
+        // Responses
+        let response_opening =
+            produce_response(&witness_commitment_opening, &challenge, commitment_opening);
+        let response_openings = produce_responses(
+            &witness_pedersen_commitments_openings,
+            &challenge,
+            &pedersen_commitments_openings.iter().collect::<Vec<_>>(),
+        );
+        let response_attributes =
+            produce_responses(&witness_attributes, &challenge, private_attributes);
+
+        ProofCmCs {
+            challenge,
+            response_opening,
+            response_openings,
+            response_attributes,
+        }
+    }
+
+    pub(crate) fn verify(
+        &self,
+        params: &Parameters,
+        commitment: &G1Projective,
+        commitments: &[G1Projective],
+        public_attributes: &[&Attribute],
+    ) -> bool {
+        if self.response_attributes.len() != commitments.len() {
+            return false;
+        }
+
+        // recompute h
+        let h = compute_hash(*commitment, public_attributes);
+        let g1 = params.gen1();
+
+        let hs_bytes = params
+            .gen_hs()
+            .iter()
+            .map(|h| h.to_bytes())
+            .collect::<Vec<_>>();
+
+        // recompute witnesses commitments
+        // Cw = (cm * c) + (rr * g1) + (rm[0] * hs[0]) + ... + (rm[n] * hs[n])
+        let commitment_attributes = (commitment
+            - public_attributes
+                .iter()
+                .zip(params.gen_hs().iter().skip(self.response_attributes.len()))
+                .map(|(&pub_attr, hs)| hs * pub_attr)
+                .sum::<G1Projective>())
+            * self.challenge
+            + g1 * self.response_opening
+            + self
+                .response_attributes
+                .iter()
+                .zip(params.gen_hs().iter())
+                .map(|(res_attr, hs)| hs * res_attr)
+                .sum::<G1Projective>();
+
+        let commitments_attributes = izip!(
+            commitments.iter(),
+            self.response_openings.iter(),
+            self.response_attributes.iter()
+        )
+        .map(|(cm_j, r_o_j, r_m_j)| cm_j * self.challenge + g1 * r_o_j + h * r_m_j)
+        .collect::<Vec<_>>();
+
+        let commitments_bytes = commitments
+            .iter()
+            .map(|cm| cm.to_bytes())
+            .collect::<Vec<_>>();
+
+        let commitments_attributes_bytes = commitments_attributes
+            .iter()
+            .map(|cm| cm.to_bytes())
+            .collect::<Vec<_>>();
+
+        // re-compute the challenge
+        let challenge = compute_challenge::<ChallengeDigest, _, _>(
+            std::iter::once(params.gen1().to_bytes().as_ref())
+                .chain(hs_bytes.iter().map(|hs| hs.as_ref()))
+                .chain(std::iter::once(h.to_bytes().as_ref()))
+                .chain(std::iter::once(commitment.to_bytes().as_ref()))
+                .chain(commitments_bytes.iter().map(|cm| cm.as_ref()))
+                .chain(std::iter::once(commitment_attributes.to_bytes().as_ref()))
+                .chain(commitments_attributes_bytes.iter().map(|cm| cm.as_ref())),
+        );
+
+        challenge == self.challenge
+    }
+
+    // challenge || response opening || openings len || response openings || attributes len ||
+    // response attributes
+    pub(crate) fn to_bytes(&self) -> Vec<u8> {
+        let openings_len = self.response_openings.len() as u64;
+        let attributes_len = self.response_attributes.len() as u64;
+
+        let mut bytes = Vec::with_capacity(16 + (2 + openings_len + attributes_len) as usize * 32);
+
+        bytes.extend_from_slice(&self.challenge.to_bytes());
+        bytes.extend_from_slice(&self.response_opening.to_bytes());
+
+        bytes.extend_from_slice(&openings_len.to_le_bytes());
+        for ro in &self.response_openings {
+            bytes.extend_from_slice(&ro.to_bytes());
+        }
+
+        bytes.extend_from_slice(&attributes_len.to_le_bytes());
+        for rm in &self.response_attributes {
+            bytes.extend_from_slice(&rm.to_bytes());
+        }
+
+        bytes
+    }
+
+    pub(crate) fn from_bytes(bytes: &[u8]) -> Result<Self> {
+        // at the very minimum there must be a single attribute being proven
+        if bytes.len() < 32 * 4 + 16 || (bytes.len() - 16) % 32 != 0 {
+            return Err(CoconutError::Deserialization(
+                "tried to deserialize proof of commitments with bytes of invalid length"
+                    .to_string(),
+            ));
+        }
+
+        let mut idx = 0;
+        // safety: bound checked + constant offset
+        #[allow(clippy::unwrap_used)]
+        let challenge_bytes = bytes[idx..idx + 32].try_into().unwrap();
+        idx += 32;
+        // safety: bound checked + constant offset
+        #[allow(clippy::unwrap_used)]
+        let response_opening_bytes = bytes[idx..idx + 32].try_into().unwrap();
+        idx += 32;
+
+        let challenge = try_deserialize_scalar(
+            &challenge_bytes,
+            CoconutError::Deserialization("Failed to deserialize challenge".to_string()),
+        )?;
+
+        let response_opening = try_deserialize_scalar(
+            &response_opening_bytes,
+            CoconutError::Deserialization(
+                "Failed to deserialize the response to the random".to_string(),
+            ),
+        )?;
+
+        // safety: bound checked + constant offset
+        #[allow(clippy::unwrap_used)]
+        let ro_len = u64::from_le_bytes(bytes[idx..idx + 8].try_into().unwrap());
+        idx += 8;
+        if bytes[idx..].len() < ro_len as usize * 32 + 8 {
+            return Err(
+                CoconutError::Deserialization(
+                    "tried to deserialize proof of ciphertexts and commitment with insufficient number of bytes provided".to_string()),
+            );
+        }
+
+        let ro_end = idx + ro_len as usize * 32;
+        let response_openings = try_deserialize_scalar_vec(
+            ro_len,
+            &bytes[idx..ro_end],
+            CoconutError::Deserialization("Failed to deserialize openings response".to_string()),
+        )?;
+
+        // safety: bound checked + constant offset
+        #[allow(clippy::unwrap_used)]
+        let rm_len = u64::from_le_bytes(bytes[ro_end..ro_end + 8].try_into().unwrap());
+        let response_attributes = try_deserialize_scalar_vec(
+            rm_len,
+            &bytes[ro_end + 8..],
+            CoconutError::Deserialization("Failed to deserialize attributes response".to_string()),
+        )?;
+
+        Ok(ProofCmCs {
+            challenge,
+            response_opening,
+            response_openings,
+            response_attributes,
+        })
+    }
+}
+
+#[derive(Debug, PartialEq, Eq)]
+pub struct ProofKappaZeta {
+    // c
+    challenge: Scalar,
+
+    // responses
+    response_serial_number: Scalar,
+    response_binding_number: Scalar,
+    response_blinder: Scalar,
+}
+
+impl ProofKappaZeta {
+    pub(crate) fn construct(
+        params: &Parameters,
+        verification_key: &VerificationKey,
+        serial_number: &Attribute,
+        binding_number: &Attribute,
+        blinding_factor: &Scalar,
+        blinded_message: &G2Projective,
+        blinded_serial_number: &G2Projective,
+    ) -> Self {
+        // create the witnesses
+        let witness_blinder = params.random_scalar();
+        let witness_serial_number = params.random_scalar();
+        let witness_binding_number = params.random_scalar();
+        let witness_attributes = [witness_serial_number, witness_binding_number];
+
+        let beta_bytes = verification_key
+            .beta_g2
+            .iter()
+            .map(|beta_i| beta_i.to_bytes())
+            .collect::<Vec<_>>();
+
+        // witnesses commitments
+        // Aw = g2 * wt + alpha + beta[0] * wm[0] + ... + beta[i] * wm[i]
+        let commitment_kappa = params.gen2() * witness_blinder
+            + verification_key.alpha
+            + witness_attributes
+                .iter()
+                .zip(verification_key.beta_g2.iter())
+                .map(|(wm_i, beta_i)| beta_i * wm_i)
+                .sum::<G2Projective>();
+
+        // zeta is the public value associated with the serial number
+        let commitment_zeta = params.gen2() * witness_serial_number;
+
+        let challenge = compute_challenge::<ChallengeDigest, _, _>(
+            std::iter::once(params.gen2().to_bytes().as_ref())
+                .chain(std::iter::once(blinded_message.to_bytes().as_ref()))
+                .chain(std::iter::once(blinded_serial_number.to_bytes().as_ref()))
+                .chain(std::iter::once(verification_key.alpha.to_bytes().as_ref()))
+                .chain(beta_bytes.iter().map(|b| b.as_ref()))
+                .chain(std::iter::once(commitment_kappa.to_bytes().as_ref()))
+                .chain(std::iter::once(commitment_zeta.to_bytes().as_ref())),
+        );
+
+        // responses
+        let response_blinder = produce_response(&witness_blinder, &challenge, blinding_factor);
+        let response_serial_number =
+            produce_response(&witness_serial_number, &challenge, serial_number);
+        let response_binding_number =
+            produce_response(&witness_binding_number, &challenge, binding_number);
+
+        ProofKappaZeta {
+            challenge,
+            response_serial_number,
+            response_binding_number,
+            response_blinder,
+        }
+    }
+
+    pub(crate) fn private_attributes_len(&self) -> usize {
+        2
+    }
+
+    pub(crate) fn verify(
+        &self,
+        params: &Parameters,
+        verification_key: &VerificationKey,
+        kappa: &G2Projective,
+        zeta: &G2Projective,
+    ) -> bool {
+        let beta_bytes = verification_key
+            .beta_g2
+            .iter()
+            .map(|beta_i| beta_i.to_bytes())
+            .collect::<Vec<_>>();
+
+        let response_attributes = [self.response_serial_number, self.response_binding_number];
+        // re-compute witnesses commitments
+        // Aw = (c * kappa) + (rt * g2) + ((1 - c) * alpha) + (rm[0] * beta[0]) + ... + (rm[i] * beta[i])
+        let commitment_kappa = kappa * self.challenge
+            + params.gen2() * self.response_blinder
+            + verification_key.alpha * (Scalar::one() - self.challenge)
+            + response_attributes
+                .iter()
+                .zip(verification_key.beta_g2.iter())
+                .map(|(priv_attr, beta_i)| beta_i * priv_attr)
+                .sum::<G2Projective>();
+
+        // zeta is the public value associated with the serial number
+        let commitment_zeta = zeta * self.challenge + params.gen2() * self.response_serial_number;
+
+        // compute the challenge
+        let challenge = compute_challenge::<ChallengeDigest, _, _>(
+            std::iter::once(params.gen2().to_bytes().as_ref())
+                .chain(std::iter::once(kappa.to_bytes().as_ref()))
+                .chain(std::iter::once(zeta.to_bytes().as_ref()))
+                .chain(std::iter::once(verification_key.alpha.to_bytes().as_ref()))
+                .chain(beta_bytes.iter().map(|b| b.as_ref()))
+                .chain(std::iter::once(commitment_kappa.to_bytes().as_ref()))
+                .chain(std::iter::once(commitment_zeta.to_bytes().as_ref())),
+        );
+
+        challenge == self.challenge
+    }
+
+    // challenge || response serial number || response binding number || repose blinder
+    pub(crate) fn to_bytes(&self) -> Vec<u8> {
+        let attributes_len = 2; // because we have serial number and the binding number
+        let mut bytes = Vec::with_capacity((1 + attributes_len + 1) as usize * 32);
+
+        bytes.extend_from_slice(&self.challenge.to_bytes());
+        bytes.extend_from_slice(&self.response_serial_number.to_bytes());
+        bytes.extend_from_slice(&self.response_binding_number.to_bytes());
+
+        bytes.extend_from_slice(&self.response_blinder.to_bytes());
+
+        bytes
+    }
+
+    pub(crate) fn from_bytes(bytes: &[u8]) -> Result<Self> {
+        // at the very minimum there must be a single attribute being proven
+        if bytes.len() != 128 {
+            return Err(CoconutError::DeserializationInvalidLength {
+                actual: bytes.len(),
+                modulus_target: bytes.len(),
+                modulus: 32,
+                object: "kappa and zeta".to_string(),
+                target: 32 * 4,
+            });
+        }
+
+        // safety: bound checked + constant offset
+        #[allow(clippy::unwrap_used)]
+        let challenge_bytes = bytes[..32].try_into().unwrap();
+        let challenge = try_deserialize_scalar(
+            &challenge_bytes,
+            CoconutError::Deserialization("Failed to deserialize challenge".to_string()),
+        )?;
+
+        // safety: bound checked + constant offset
+        #[allow(clippy::unwrap_used)]
+        let serial_number_bytes = &bytes[32..64].try_into().unwrap();
+        let response_serial_number = try_deserialize_scalar(
+            serial_number_bytes,
+            CoconutError::Deserialization("failed to deserialize the serial number".to_string()),
+        )?;
+
+        // safety: bound checked + constant offset
+        #[allow(clippy::unwrap_used)]
+        let binding_number_bytes = &bytes[64..96].try_into().unwrap();
+        let response_binding_number = try_deserialize_scalar(
+            binding_number_bytes,
+            CoconutError::Deserialization("failed to deserialize the binding number".to_string()),
+        )?;
+
+        // safety: bound checked + constant offset
+        #[allow(clippy::unwrap_used)]
+        let blinder_bytes = bytes[96..].try_into().unwrap();
+        let response_blinder = try_deserialize_scalar(
+            &blinder_bytes,
+            CoconutError::Deserialization("failed to deserialize the blinder".to_string()),
+        )?;
+
+        Ok(ProofKappaZeta {
+            challenge,
+            response_serial_number,
+            response_binding_number,
+            response_blinder,
+        })
+    }
+}
+
+// proof builder:
+// - commitment
+// - challenge
+// - responses
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use crate::scheme::keygen::keygen;
+    use crate::scheme::setup::setup;
+    use crate::scheme::verification::{compute_kappa, compute_zeta};
+    use crate::tests::helpers::random_scalars_refs;
+    use group::Group;
+    use rand::thread_rng;
+
+    #[test]
+    fn proof_cm_cs_bytes_roundtrip() {
+        let mut rng = thread_rng();
+
+        let params = setup(1).unwrap();
+        let cm = G1Projective::random(&mut rng);
+        let r = params.random_scalar();
+        let cms: [G1Projective; 1] = [G1Projective::random(&mut rng)];
+        let rs = params.n_random_scalars(1);
+        random_scalars_refs!(private_attributes, params, 1);
+
+        // 0 public 1 private
+        let pi_s = ProofCmCs::construct(&params, &cm, &r, &cms, &rs, &private_attributes, &[]);
+
+        let bytes = pi_s.to_bytes();
+        assert_eq!(ProofCmCs::from_bytes(&bytes).unwrap(), pi_s);
+
+        let params = setup(2).unwrap();
+        let cm = G1Projective::random(&mut rng);
+        let r = params.random_scalar();
+        let cms: [G1Projective; 2] = [
+            G1Projective::random(&mut rng),
+            G1Projective::random(&mut rng),
+        ];
+        let rs = params.n_random_scalars(2);
+        random_scalars_refs!(private_attributes, params, 2);
+
+        // 0 public 2 privates
+        let pi_s = ProofCmCs::construct(&params, &cm, &r, &cms, &rs, &private_attributes, &[]);
+
+        let bytes = pi_s.to_bytes();
+        assert_eq!(ProofCmCs::from_bytes(&bytes).unwrap(), pi_s);
+    }
+
+    #[test]
+    fn proof_kappa_zeta_bytes_roundtrip() {
+        let params = setup(4).unwrap();
+
+        let keypair = keygen(&params);
+
+        // we don't care about 'correctness' of the proof. only whether we can correctly recover it from bytes
+        let serial_number = &params.random_scalar();
+        let binding_number = &params.random_scalar();
+        let private_attributes = vec![serial_number, binding_number];
+
+        let r = params.random_scalar();
+        let kappa = compute_kappa(&params, keypair.verification_key(), &private_attributes, r);
+        let zeta = compute_zeta(&params, serial_number);
+
+        // 0 public 2 private
+        let pi_v = ProofKappaZeta::construct(
+            &params,
+            keypair.verification_key(),
+            serial_number,
+            binding_number,
+            &r,
+            &kappa,
+            &zeta,
+        );
+
+        let proof_bytes = pi_v.to_bytes();
+
+        let proof_from_bytes = ProofKappaZeta::from_bytes(&proof_bytes).unwrap();
+        assert_eq!(proof_from_bytes, pi_v);
+
+        // 2 public 2 private
+        let params = setup(4).unwrap();
+        let keypair = keygen(&params);
+
+        let pi_v = ProofKappaZeta::construct(
+            &params,
+            keypair.verification_key(),
+            serial_number,
+            binding_number,
+            &r,
+            &kappa,
+            &zeta,
+        );
+
+        let proof_bytes = pi_v.to_bytes();
+
+        let proof_from_bytes = ProofKappaZeta::from_bytes(&proof_bytes).unwrap();
+        assert_eq!(proof_from_bytes, pi_v);
+    }
+}
@@ -0,0 +1,432 @@
+// Copyright 2021 - Nym Technologies SA <contact@nymtech.net>
+// SPDX-License-Identifier: Apache-2.0
+
+use core::iter::Sum;
+use core::ops::Mul;
+
+use bls12_381::{G2Prepared, G2Projective, Scalar};
+use group::Curve;
+use itertools::Itertools;
+
+use crate::error::{CoconutError, Result};
+use crate::scheme::verification::check_bilinear_pairing;
+use crate::scheme::{PartialSignature, Signature, SignatureShare, SignerIndex, VerificationKey};
+use crate::utils::perform_lagrangian_interpolation_at_origin;
+use crate::{Attribute, Parameters, VerificationKeyShare};
+
+pub(crate) trait Aggregatable: Sized {
+    fn aggregate(aggregatable: &[Self], indices: Option<&[SignerIndex]>) -> Result<Self>;
+
+    fn check_unique_indices(indices: &[SignerIndex]) -> bool {
+        // if aggregation is a threshold one, all indices should be unique
+        indices.iter().unique_by(|&index| index).count() == indices.len()
+    }
+}
+
+// includes `VerificationKey`
+impl<T> Aggregatable for T
+where
+    T: Sum,
+    for<'a> T: Sum<&'a T>,
+    for<'a> &'a T: Mul<Scalar, Output = T>,
+{
+    fn aggregate(aggregatable: &[T], indices: Option<&[u64]>) -> Result<T> {
+        if aggregatable.is_empty() {
+            return Err(CoconutError::Aggregation("Empty set of values".to_string()));
+        }
+
+        if let Some(indices) = indices {
+            if !Self::check_unique_indices(indices) {
+                return Err(CoconutError::Aggregation("Non-unique indices".to_string()));
+            }
+            perform_lagrangian_interpolation_at_origin(indices, aggregatable)
+        } else {
+            // non-threshold
+            Ok(aggregatable.iter().sum())
+        }
+    }
+}
+
+impl Aggregatable for PartialSignature {
+    fn aggregate(sigs: &[PartialSignature], indices: Option<&[u64]>) -> Result<Signature> {
+        let h = sigs
+            .first()
+            .ok_or_else(|| CoconutError::Aggregation("Empty set of signatures".to_string()))?
+            .sig1();
+
+        // TODO: is it possible to avoid this allocation?
+        let sigmas = sigs.iter().map(|sig| *sig.sig2()).collect::<Vec<_>>();
+        let aggr_sigma = Aggregatable::aggregate(&sigmas, indices)?;
+
+        Ok(Signature(*h, aggr_sigma))
+    }
+}
+
+/// Ensures all provided verification keys were generated to verify the same number of attributes.
+fn check_same_key_size(keys: &[VerificationKey]) -> bool {
+    keys.iter().map(|vk| vk.beta_g1.len()).all_equal()
+        && keys.iter().map(|vk| vk.beta_g2.len()).all_equal()
+}
+
+pub fn aggregate_verification_keys(
+    keys: &[VerificationKey],
+    indices: Option<&[SignerIndex]>,
+) -> Result<VerificationKey> {
+    if !check_same_key_size(keys) {
+        return Err(CoconutError::Aggregation(
+            "Verification keys are of different sizes".to_string(),
+        ));
+    }
+    Aggregatable::aggregate(keys, indices)
+}
+
+pub fn aggregate_key_shares(shares: &[VerificationKeyShare]) -> Result<VerificationKey> {
+    let (keys, indices): (Vec<_>, Vec<_>) = shares
+        .iter()
+        .map(|share| (share.key.clone(), share.index))
+        .unzip();
+
+    aggregate_verification_keys(&keys, Some(&indices))
+}
+
+pub fn aggregate_signatures(
+    signatures: &[PartialSignature],
+    indices: Option<&[SignerIndex]>,
+) -> Result<Signature> {
+    Aggregatable::aggregate(signatures, indices)
+}
+
+pub fn aggregate_signatures_and_verify(
+    params: &Parameters,
+    verification_key: &VerificationKey,
+    attributes: &[&Attribute],
+    signatures: &[PartialSignature],
+    indices: Option<&[SignerIndex]>,
+) -> Result<Signature> {
+    // aggregate the signature
+    let signature = aggregate_signatures(signatures, indices)?;
+
+    // Verify the signature
+    let alpha = verification_key.alpha;
+
+    let tmp = attributes
+        .iter()
+        .zip(verification_key.beta_g2.iter())
+        .map(|(&attr, beta_i)| beta_i * attr)
+        .sum::<G2Projective>();
+
+    if bool::from(signature.0.is_identity()) {
+        return Err(CoconutError::Aggregation(
+            "Verification of the aggregated signature failed - h is an identity point".to_string(),
+        ));
+    }
+    if !check_bilinear_pairing(
+        &signature.0.to_affine(),
+        &G2Prepared::from((alpha + tmp).to_affine()),
+        &signature.1.to_affine(),
+        params.prepared_miller_g2(),
+    ) {
+        return Err(CoconutError::Aggregation(
+            "Verification of the aggregated signature failed".to_string(),
+        ));
+    }
+    Ok(signature)
+}
+
+pub fn aggregate_signature_shares(shares: &[SignatureShare]) -> Result<Signature> {
+    let (signatures, indices): (Vec<_>, Vec<_>) = shares
+        .iter()
+        .map(|share| (*share.signature(), share.index()))
+        .unzip();
+
+    aggregate_signatures(&signatures, Some(&indices))
+}
+
+pub fn aggregate_signature_shares_and_verify(
+    params: &Parameters,
+    verification_key: &VerificationKey,
+    attributes: &[&Attribute],
+    shares: &[SignatureShare],
+) -> Result<Signature> {
+    let (signatures, indices): (Vec<_>, Vec<_>) = shares
+        .iter()
+        .map(|share| (*share.signature(), share.index()))
+        .unzip();
+
+    aggregate_signatures_and_verify(
+        params,
+        verification_key,
+        attributes,
+        &signatures,
+        Some(&indices),
+    )
+}
+
+#[cfg(test)]
+mod tests {
+    use crate::scheme::issuance::sign;
+    use crate::scheme::keygen::ttp_keygen;
+    use crate::scheme::verification::verify;
+    use crate::tests::helpers::random_scalars_refs;
+    use bls12_381::G1Projective;
+    use group::Group;
+
+    use super::*;
+
+    #[test]
+    fn key_aggregation_works_for_any_subset_of_keys() {
+        let params = Parameters::new(2).unwrap();
+        let keypairs = ttp_keygen(&params, 3, 5).unwrap();
+
+        let vks = keypairs
+            .into_iter()
+            .map(|keypair| keypair.verification_key().clone())
+            .collect::<Vec<_>>();
+
+        let aggr_vk1 = aggregate_verification_keys(&vks[..3], Some(&[1, 2, 3])).unwrap();
+        let aggr_vk2 = aggregate_verification_keys(&vks[2..], Some(&[3, 4, 5])).unwrap();
+
+        assert_eq!(aggr_vk1, aggr_vk2);
+
+        // TODO: should those two actually work or not?
+        // aggregating threshold+1
+        let aggr_more = aggregate_verification_keys(&vks[1..], Some(&[2, 3, 4, 5])).unwrap();
+        assert_eq!(aggr_vk1, aggr_more);
+
+        // aggregating all
+        let aggr_all = aggregate_verification_keys(&vks, Some(&[1, 2, 3, 4, 5])).unwrap();
+        assert_eq!(aggr_all, aggr_vk1);
+
+        // not taking enough points (threshold was 3)
+        let aggr_not_enough = aggregate_verification_keys(&vks[..2], Some(&[1, 2])).unwrap();
+        assert_ne!(aggr_not_enough, aggr_vk1);
+
+        // taking wrong index
+        let aggr_bad = aggregate_verification_keys(&vks[2..], Some(&[42, 123, 100])).unwrap();
+        assert_ne!(aggr_vk1, aggr_bad);
+    }
+
+    #[test]
+    fn key_aggregation_doesnt_work_for_empty_set_of_keys() {
+        let keys: Vec<VerificationKey> = vec![];
+        assert!(aggregate_verification_keys(&keys, None).is_err());
+    }
+
+    #[test]
+    fn key_aggregation_doesnt_work_if_indices_have_invalid_length() {
+        let keys = vec![VerificationKey::identity(3)];
+
+        assert!(aggregate_verification_keys(&keys, Some(&[])).is_err());
+        assert!(aggregate_verification_keys(&keys, Some(&[1, 2])).is_err());
+    }
+
+    #[test]
+    fn key_aggregation_doesnt_work_for_non_unique_indices() {
+        let keys = vec![VerificationKey::identity(3), VerificationKey::identity(3)];
+
+        assert!(aggregate_verification_keys(&keys, Some(&[1, 1])).is_err());
+    }
+
+    #[test]
+    fn key_aggregation_doesnt_work_for_keys_of_different_size() {
+        let keys = vec![VerificationKey::identity(3), VerificationKey::identity(1)];
+
+        assert!(aggregate_verification_keys(&keys, None).is_err())
+    }
+
+    #[test]
+    fn signature_aggregation_works_for_any_subset_of_signatures() {
+        let params = Parameters::new(2).unwrap();
+        random_scalars_refs!(attributes, params, 2);
+
+        let keypairs = ttp_keygen(&params, 3, 5).unwrap();
+
+        let (sks, vks): (Vec<_>, Vec<_>) = keypairs
+            .into_iter()
+            .map(|keypair| {
+                (
+                    keypair.secret_key().clone(),
+                    keypair.verification_key().clone(),
+                )
+            })
+            .unzip();
+
+        let sigs = sks
+            .iter()
+            .map(|sk| sign(sk, &attributes).unwrap())
+            .collect::<Vec<_>>();
+
+        // aggregating (any) threshold works
+        let aggr_vk_1 = aggregate_verification_keys(&vks[..3], Some(&[1, 2, 3])).unwrap();
+        let aggr_sig1 = aggregate_signatures_and_verify(
+            &params,
+            &aggr_vk_1,
+            &attributes,
+            &sigs[..3],
+            Some(&[1, 2, 3]),
+        )
+        .unwrap();
+
+        let aggr_vk_2 = aggregate_verification_keys(&vks[2..], Some(&[3, 4, 5])).unwrap();
+        let aggr_sig2 = aggregate_signatures_and_verify(
+            &params,
+            &aggr_vk_1,
+            &attributes,
+            &sigs[2..],
+            Some(&[3, 4, 5]),
+        )
+        .unwrap();
+        assert_eq!(aggr_sig1, aggr_sig2);
+
+        // verify credential for good measure
+        assert!(verify(&params, &aggr_vk_1, &attributes, &aggr_sig1));
+        assert!(verify(&params, &aggr_vk_2, &attributes, &aggr_sig2));
+
+        // aggregating threshold+1 works
+        let aggr_vk_more = aggregate_verification_keys(&vks[1..], Some(&[2, 3, 4, 5])).unwrap();
+        let aggr_more = aggregate_signatures_and_verify(
+            &params,
+            &aggr_vk_more,
+            &attributes,
+            &sigs[1..],
+            Some(&[2, 3, 4, 5]),
+        )
+        .unwrap();
+        assert_eq!(aggr_sig1, aggr_more);
+
+        // aggregating all
+        let aggr_vk_all = aggregate_verification_keys(&vks, Some(&[1, 2, 3, 4, 5])).unwrap();
+        let aggr_all = aggregate_signatures_and_verify(
+            &params,
+            &aggr_vk_all,
+            &attributes,
+            &sigs,
+            Some(&[1, 2, 3, 4, 5]),
+        )
+        .unwrap();
+        assert_eq!(aggr_all, aggr_sig1);
+
+        // not taking enough points (threshold was 3) should fail
+        let aggr_vk_not_enough = aggregate_verification_keys(&vks[..2], Some(&[1, 2])).unwrap();
+        let aggr_not_enough = aggregate_signatures_and_verify(
+            &params,
+            &aggr_vk_not_enough,
+            &attributes,
+            &sigs[..2],
+            Some(&[1, 2]),
+        )
+        .unwrap();
+        assert_ne!(aggr_not_enough, aggr_sig1);
+
+        // taking wrong index should fail
+        let aggr_vk_bad = aggregate_verification_keys(&vks[2..], Some(&[1, 2, 3])).unwrap();
+        assert!(aggregate_signatures_and_verify(
+            &params,
+            &aggr_vk_bad,
+            &attributes,
+            &sigs[2..],
+            Some(&[42, 123, 100]),
+        )
+        .is_err());
+    }
+
+    fn random_signature() -> Signature {
+        let mut rng = rand::thread_rng();
+        Signature(
+            G1Projective::random(&mut rng),
+            G1Projective::random(&mut rng),
+        )
+    }
+
+    #[test]
+    fn signature_aggregation_doesnt_work_for_empty_set_of_signatures() {
+        let signatures: Vec<Signature> = vec![];
+        let params = Parameters::new(2).unwrap();
+        random_scalars_refs!(attributes, params, 2);
+        let keypairs = ttp_keygen(&params, 3, 5).unwrap();
+
+        let (_, vks): (Vec<_>, Vec<_>) = keypairs
+            .into_iter()
+            .map(|keypair| {
+                (
+                    keypair.secret_key().clone(),
+                    keypair.verification_key().clone(),
+                )
+            })
+            .unzip();
+
+        let aggr_vk_all = aggregate_verification_keys(&vks, None).unwrap();
+        assert!(aggregate_signatures_and_verify(
+            &params,
+            &aggr_vk_all,
+            &attributes,
+            &signatures,
+            None
+        )
+        .is_err());
+    }
+
+    #[test]
+    fn signature_aggregation_doesnt_work_if_indices_have_invalid_length() {
+        let signatures = vec![random_signature()];
+        let params = Parameters::new(2).unwrap();
+        random_scalars_refs!(attributes, params, 2);
+        let keypairs = ttp_keygen(&params, 3, 5).unwrap();
+        let (_, vks): (Vec<_>, Vec<_>) = keypairs
+            .into_iter()
+            .map(|keypair| {
+                (
+                    keypair.secret_key().clone(),
+                    keypair.verification_key().clone(),
+                )
+            })
+            .unzip();
+        let aggr_vk_all = aggregate_verification_keys(&vks, None).unwrap();
+
+        assert!(aggregate_signatures_and_verify(
+            &params,
+            &aggr_vk_all,
+            &attributes,
+            &signatures,
+            Some(&[])
+        )
+        .is_err());
+        assert!(aggregate_signatures_and_verify(
+            &params,
+            &aggr_vk_all,
+            &attributes,
+            &signatures,
+            Some(&[1, 2]),
+        )
+        .is_err());
+    }
+
+    #[test]
+    fn signature_aggregation_doesnt_work_for_non_unique_indices() {
+        let signatures = vec![random_signature(), random_signature()];
+        let params = Parameters::new(2).unwrap();
+        random_scalars_refs!(attributes, params, 2);
+        let keypairs = ttp_keygen(&params, 3, 5).unwrap();
+        let (_, vks): (Vec<_>, Vec<_>) = keypairs
+            .into_iter()
+            .map(|keypair| {
+                (
+                    keypair.secret_key().clone(),
+                    keypair.verification_key().clone(),
+                )
+            })
+            .unzip();
+        let aggr_vk_all = aggregate_verification_keys(&vks, None).unwrap();
+
+        assert!(aggregate_signatures_and_verify(
+            &params,
+            &aggr_vk_all,
+            &attributes,
+            &signatures,
+            Some(&[1, 1]),
+        )
+        .is_err());
+    }
+
+    // TODO: test for aggregating non-threshold keys
+}
--- a/Show More
+++ b/Show More
				`@@ -0,0 +1 @@`
				`This project was partially funded through the NGI0 PET Fund, a fund established by NL.net with financial support from the European Commission's NGI programme, under the aegis of DG Communications Networks, Content and Technology under grant agreement No 825310.`