fix: remove dead code

refactor(nc-mobile): adjust ui
feat(nc-mobile): select service provider ui
2023-03-20 12:37:58 +01:00 · 2023-03-20 12:25:08 +01:00 · 2023-03-20 11:09:19 +01:00 · 2023-03-17 14:31:38 +00:00 · 2023-03-16 15:27:45 +00:00 · 2023-03-16 12:59:46 +00:00
259 changed files with 6043 additions and 5957 deletions
@@ -80,7 +80,7 @@ jobs:
          components: rustfmt, clippy

      - name: Install wasm-opt
-        run: cargo install --version 0.110.0 wasm-opt
+        run: cargo install wasm-opt

      - name: Build release contracts
        run: make wasm
@@ -99,14 +99,9 @@ jobs:
          cp target/release/nym-network-statistics $OUTPUT_DIR
          cp target/release/nym-cli $OUTPUT_DIR
          cp target/release/credential $OUTPUT_DIR
-          cp target/release/explorer-api $OUTPUT_DIR
          
          cp contracts/target/wasm32-unknown-unknown/release/mixnet_contract.wasm $OUTPUT_DIR
          cp contracts/target/wasm32-unknown-unknown/release/vesting_contract.wasm $OUTPUT_DIR
-          cp contracts/target/wasm32-unknown-unknown/release/nym_coconut_bandwidth.wasm $OUTPUT_DIR
-          cp contracts/target/wasm32-unknown-unknown/release/nym_coconut_dkg.wasm $OUTPUT_DIR
-          cp contracts/target/wasm32-unknown-unknown/release/cw3_flex_multisig.wasm $OUTPUT_DIR
-          cp contracts/target/wasm32-unknown-unknown/release/cw4_group.wasm $OUTPUT_DIR

      - name: Deploy branch to CI www
        continue-on-error: true
@@ -20,7 +20,7 @@ jobs:
          components: rustfmt, clippy

      - name: Install wasm-opt
-        run: cargo install --version 0.110.0 wasm-opt
+        run: cargo install wasm-opt

      - name: Build release contracts
        run: make wasm
@@ -39,5 +39,7 @@ validator-api-config.toml
 dist
 storybook-static
 envs/qwerty.env
+Cargo.lock
+nym-connect/Cargo.lock
 .parcel-cache
 **/.DS_Store
@@ -4,26 +4,6 @@ Post 1.0.0 release, the changelog format is based on [Keep a Changelog](https://

 ## [Unreleased]

-## [v1.1.13] (2023-03-15)
-
- NE - instead of throwing a "Mixnode/Gateway not found" error for blacklisted nodes due to bad performance, show their history but tag them as "Having poor performance" ([#2979])
- NE - Upgrade Sandbox and make below changes:  ([#2332])
- Explorer - Updates ([#3168])
- Fix contracts and nym-api audit findings ([#3026])
- Website v2 - deploy infrastructure for strapi and CI ([#2213])
- add blockstream green to sp list ([#3180])
- mock-nym-api: fix .storybook lint error ([#3178])
- Validating new interval config parameters to prevent division by zero ([#3153])
-
-[#2979]: https://github.com/nymtech/nym/issues/2979
-[#2332]: https://github.com/nymtech/nym/issues/2332
-[#3168]: https://github.com/nymtech/nym/issues/3168
-[#3026]: https://github.com/nymtech/nym/issues/3026
-[#2213]: https://github.com/nymtech/nym/issues/2213
-[#3180]: https://github.com/nymtech/nym/pull/3180
-[#3178]: https://github.com/nymtech/nym/pull/3178
-[#3153]: https://github.com/nymtech/nym/pull/3153
-
 ## [v1.1.12] (2023-03-07)

 - Fix generated docs for mixnet and vesting contract on docs.rs ([#3093])
@@ -302,22 +302,23 @@ dependencies = [

 [[package]]
 name = "bip39"
-version = "1.0.1"
+version = "2.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b9e89470017230c38e52b82b3ee3f530db1856ba1d434e3a67a3456a8a8dec5f"
+checksum = "93f2635620bf0b9d4576eb7bb9a38a55df78bd1205d26fa994b25911a69f212f"
 dependencies = [
 "bitcoin_hashes",
- "rand 0.6.5",
- "rand_core 0.4.2",
+ "rand 0.8.5",
+ "rand_core 0.6.4",
 "serde",
 "unicode-normalization",
+ "zeroize",
 ]

 [[package]]
 name = "bitcoin_hashes"
-version = "0.9.7"
+version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7ce18265ec2324ad075345d5814fbeed4f41f0a660055dc78840b74d19b874b1"
+checksum = "90064b8dee6815a6470d60bad07bbbaee885c0e12d04177138fa3291a01b7bc4"

 [[package]]
 name = "bitflags"
@@ -646,7 +647,7 @@ dependencies = [

 [[package]]
 name = "client-core"
-version = "1.1.13"
+version = "1.1.12"
 dependencies = [
 "async-trait",
 "dashmap 5.4.0",
@@ -855,9 +856,9 @@ dependencies = [

 [[package]]
 name = "cosmwasm-derive"
-version = "1.0.0"
+version = "1.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4b36e527620a2a3e00e46b6e731ab6c9b68d11069c986f7d7be8eba79ef081a4"
+checksum = "d5abeeb891e6d0098402e4d3d042f90451db52651d2fe14b170e69a1dd3e4115"
 dependencies = [
 "syn",
 ]
@@ -1612,7 +1613,7 @@ checksum = "0206175f82b8d6bf6652ff7d71a1e27fd2e4efde587fd368662814d6ec1d9ce0"

 [[package]]
 name = "explorer-api"
-version = "1.1.13"
+version = "1.1.12"
 dependencies = [
 "chrono",
 "clap 4.1.4",
@@ -2845,12 +2846,6 @@ dependencies = [
 "serde",
 ]

-[[package]]
-name = "maybe-uninit"
-version = "2.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "60302e4db3a61da70c0cb7991976248362f30319e88850c487b9b95bbf059e00"
-
 [[package]]
 name = "memchr"
 version = "2.5.0"
@@ -3062,7 +3057,7 @@ dependencies = [

 [[package]]
 name = "nym-api"
-version = "1.1.14"
+version = "1.1.13"
 dependencies = [
 "anyhow",
 "async-trait",
@@ -3140,17 +3135,9 @@ dependencies = [
 "ts-rs",
 ]

-[[package]]
-name = "nym-bandwidth-claim-contract"
-version = "0.1.0"
-dependencies = [
- "schemars",
- "serde",
-]
-
 [[package]]
 name = "nym-bin-common"
-version = "0.3.0"
+version = "0.2.0"
 dependencies = [
 "clap 4.1.4",
 "clap_complete",
@@ -3179,7 +3166,7 @@ dependencies = [

 [[package]]
 name = "nym-cli"
-version = "1.1.13"
+version = "1.1.12"
 dependencies = [
 "anyhow",
 "base64 0.13.1",
@@ -3220,6 +3207,7 @@ dependencies = [
 "log",
 "nym-coconut-bandwidth-contract-common",
 "nym-coconut-dkg-common",
+ "nym-contracts-common",
 "nym-mixnet-contract-common",
 "nym-multisig-contract-common",
 "nym-network-defaults",
@@ -3237,7 +3225,7 @@ dependencies = [

 [[package]]
 name = "nym-client"
-version = "1.1.13"
+version = "1.1.12"
 dependencies = [
 "clap 4.1.4",
 "client-core",
@@ -3319,7 +3307,7 @@ dependencies = [

 [[package]]
 name = "nym-contracts-common"
-version = "0.3.0"
+version = "0.2.0"
 dependencies = [
 "bs58",
 "cosmwasm-std",
@@ -3412,7 +3400,7 @@ dependencies = [

 [[package]]
 name = "nym-gateway"
-version = "1.1.13"
+version = "1.1.12"
 dependencies = [
 "anyhow",
 "async-trait",
@@ -3479,7 +3467,7 @@ dependencies = [

 [[package]]
 name = "nym-mixnet-contract-common"
-version = "0.3.0"
+version = "0.2.0"
 dependencies = [
 "bs58",
 "cosmwasm-std",
@@ -3489,7 +3477,7 @@ dependencies = [
 "rand_chacha 0.3.1",
 "schemars",
 "serde",
- "serde_json",
+ "serde-json-wasm",
 "serde_repr",
 "thiserror",
 "time 0.3.17",
@@ -3498,7 +3486,7 @@ dependencies = [

 [[package]]
 name = "nym-mixnode"
-version = "1.1.14"
+version = "1.1.13"
 dependencies = [
 "anyhow",
 "atty",
@@ -3515,6 +3503,7 @@ dependencies = [
 "mixnode-common",
 "nym-bin-common",
 "nym-config",
+ "nym-contracts-common",
 "nym-crypto",
 "nym-nonexhaustive-delayqueue",
 "nym-pemstore",
@@ -3566,7 +3555,7 @@ dependencies = [

 [[package]]
 name = "nym-network-requester"
-version = "1.1.13"
+version = "1.1.12"
 dependencies = [
 "async-trait",
 "clap 4.1.4",
@@ -3604,7 +3593,7 @@ dependencies = [

 [[package]]
 name = "nym-network-statistics"
-version = "1.1.13"
+version = "1.1.12"
 dependencies = [
 "dirs",
 "log",
@@ -3704,7 +3693,7 @@ dependencies = [

 [[package]]
 name = "nym-socks5-client"
-version = "1.1.13"
+version = "1.1.12"
 dependencies = [
 "clap 4.1.4",
 "client-core",
@@ -3967,7 +3956,6 @@ dependencies = [
 name = "nym-vesting-contract"
 version = "1.2.0-pre.1"
 dependencies = [
- "cosmwasm-derive",
 "cosmwasm-std",
 "cw-storage-plus",
 "cw2",
@@ -3983,7 +3971,7 @@ dependencies = [

 [[package]]
 name = "nym-vesting-contract-common"
-version = "0.3.0"
+version = "0.2.0"
 dependencies = [
 "cosmwasm-std",
 "nym-contracts-common",
@@ -4178,7 +4166,7 @@ dependencies = [
 "instant",
 "libc",
 "redox_syscall",
- "smallvec 1.10.0",
+ "smallvec",
 "winapi",
 ]

@@ -4191,7 +4179,7 @@ dependencies = [
 "cfg-if",
 "libc",
 "redox_syscall",
- "smallvec 1.10.0",
+ "smallvec",
 "windows-sys 0.45.0",
 ]

@@ -5064,7 +5052,7 @@ dependencies = [
 "pin-project-lite",
 "ref-cast",
 "serde",
- "smallvec 1.10.0",
+ "smallvec",
 "stable-pattern",
 "state",
 "time 0.3.17",
@@ -5559,15 +5547,6 @@ dependencies = [
 "autocfg 1.1.0",
 ]

-[[package]]
-name = "smallvec"
-version = "0.6.14"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b97fcaeba89edba30f044a10c6a3cc39df9c3f17d7cd829dd1446cab35f890e0"
-dependencies = [
- "maybe-uninit",
-]
-
 [[package]]
 name = "smallvec"
 version = "1.10.0"
@@ -5732,7 +5711,7 @@ dependencies = [
 "percent-encoding",
 "rustls 0.19.1",
 "sha2 0.10.6",
- "smallvec 1.10.0",
+ "smallvec",
 "sqlformat 0.1.8",
 "sqlx-rt 0.5.13",
 "stringprep",
@@ -5780,7 +5759,7 @@ dependencies = [
 "rustls 0.20.8",
 "rustls-pemfile",
 "sha2 0.10.6",
- "smallvec 1.10.0",
+ "smallvec",
 "sqlformat 0.2.1",
 "sqlx-rt 0.6.2",
 "stringprep",
@@ -6205,6 +6184,21 @@ dependencies = [
 "serde_json",
 ]

+[[package]]
+name = "tinyvec"
+version = "1.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "87cc5ceb3875bb20c2890005a4e226a4651264a5c75edb2421b52861a0a0cb50"
+dependencies = [
+ "tinyvec_macros",
+]
+
+[[package]]
+name = "tinyvec_macros"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20"
+
 [[package]]
 name = "tokio"
 version = "1.25.0"
@@ -6502,7 +6496,7 @@ dependencies = [
 "once_cell",
 "regex",
 "sharded-slab",
- "smallvec 1.10.0",
+ "smallvec",
 "thread_local",
 "tracing",
 "tracing-core",
@@ -6668,11 +6662,11 @@ checksum = "84a22b9f218b40614adcb3f4ff08b703773ad44fa9423e4e0d346d5db86e4ebc"

 [[package]]
 name = "unicode-normalization"
-version = "0.1.9"
+version = "0.1.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "09c8070a9942f5e7cfccd93f490fdebd230ee3c3c9f107cb25bad5351ef671cf"
+checksum = "5c5713f0fc4b5db668a2ac63cdb7bb4469d8c9fed047b1d0292cc7b0ce2ba921"
 dependencies = [
- "smallvec 0.6.14",
+ "tinyvec",
 ]

 [[package]]
@@ -22,7 +22,6 @@ members = [
    "clients/native",
    "clients/native/websocket-requests",
    "clients/socks5",
-    "common/bandwidth-claim-contract",
    "common/bin-common",
    "common/client-libs/gateway-client",
    "common/client-libs/mixnet-client",
@@ -106,17 +105,8 @@ license = "Apache-2.0"

 [workspace.dependencies]
 async-trait = "0.1.64"
+bip39 = { version = "2.0.0", features = ["zeroize"] }
 cfg-if = "1.0.0"
-cosmwasm-derive = "=1.0.0"
-cosmwasm-schema = "=1.0.0"
-cosmwasm-std = "=1.0.0"
-cosmwasm-storage = "=1.0.0"
-cw-utils = "=0.13.4"
-cw-storage-plus = "=0.13.4"
-cw2 = { version = "=0.13.4" }
-cw3 = { version = "=0.13.4" }
-cw3-fixed-multisig = { version = "=0.13.4" }
-cw4 = { version = "=0.13.4" }
 dotenvy = "0.15.6"
 lazy_static = "1.4.0"
 log = "0.4"
@@ -1,6 +1,6 @@
 [package]
 name = "client-core"
-version = "1.1.13"
+version = "1.1.12"
 authors = ["Dave Hrycyszyn <futurechimp@users.noreply.github.com>"]
 edition = "2021"
 rust-version = "1.66"
@@ -6,7 +6,7 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

 [dependencies]
-bip39 = "1.0.1"
+bip39 = { workspace = true }
 clap = { version = "4.0", features = ["cargo", "derive"] }
 log = "0.4"
 rand = "0.7.3"
@@ -1,6 +1,6 @@
 [package]
 name = "nym-client"
-version = "1.1.13"
+version = "1.1.12"
 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 = "1.1.13"
+version = "1.1.12"
 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"
@@ -1,10 +0,0 @@
-[package]
-name = "nym-bandwidth-claim-contract"
-version = "0.1.0"
-edition = "2021"
-
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
-[dependencies]
-schemars = "0.8"
-serde = { version = "1.0.103", default-features = false, features = ["derive"] }
@@ -1,45 +0,0 @@
-// Copyright 2021 - Nym Technologies SA <contact@nymtech.net>
-// SPDX-License-Identifier: Apache-2.0
-
-use schemars::JsonSchema;
-use serde::{Deserialize, Serialize};
-
-// Serializable structures for what we find in common/crypto
-#[derive(Serialize, Deserialize, Copy, Clone, Debug, PartialEq, Eq, JsonSchema)]
-pub struct PublicKey([u8; 32]);
-
-impl PublicKey {
-    pub fn new(bytes: [u8; 32]) -> Self {
-        PublicKey(bytes)
-    }
-    pub fn to_bytes(&self) -> [u8; 32] {
-        self.0
-    }
-}
-
-impl AsRef<[u8]> for PublicKey {
-    #[inline]
-    fn as_ref(&self) -> &[u8] {
-        &self.0
-    }
-}
-
-#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, Eq, JsonSchema)]
-pub struct Signature([u8; 32], [u8; 32]);
-
-impl Signature {
-    pub fn new(bytes: [u8; 64]) -> Self {
-        let mut sig1 = [0u8; 32];
-        let mut sig2 = [0u8; 32];
-        sig1.copy_from_slice(&bytes[..32]);
-        sig2.copy_from_slice(&bytes[32..]);
-
-        Signature(sig1, sig2)
-    }
-    pub fn to_bytes(&self) -> [u8; 64] {
-        let mut res = [0u8; 64];
-        res[..32].copy_from_slice(&self.0);
-        res[32..].copy_from_slice(&self.1);
-        res
-    }
-}
@@ -1,3 +0,0 @@
-pub mod keys;
-pub mod msg;
-pub mod payment;
@@ -1,30 +0,0 @@
-// Copyright 2021 - Nym Technologies SA <contact@nymtech.net>
-// SPDX-License-Identifier: Apache-2.0
-
-use schemars::JsonSchema;
-use serde::{Deserialize, Serialize};
-
-use crate::keys::PublicKey;
-use crate::payment::LinkPaymentData;
-
-#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, Eq, JsonSchema)]
-pub struct InstantiateMsg {}
-
-#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, Eq, JsonSchema)]
-#[serde(rename_all = "snake_case")]
-pub enum ExecuteMsg {
-    LinkPayment { data: LinkPaymentData },
-}
-
-#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, Eq, JsonSchema)]
-#[serde(rename_all = "snake_case")]
-pub enum QueryMsg {
-    GetPayments {
-        limit: Option<u32>,
-        start_after: Option<PublicKey>,
-    },
-}
-
-#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, Eq, JsonSchema)]
-#[serde(rename_all = "snake_case")]
-pub struct MigrateMsg {}
@@ -1,73 +0,0 @@
-// Copyright 2021 - Nym Technologies SA <contact@nymtech.net>
-// SPDX-License-Identifier: Apache-2.0
-
-use schemars::JsonSchema;
-use serde::{Deserialize, Serialize};
-
-use crate::keys::{PublicKey, Signature};
-
-#[derive(Clone, Debug, Deserialize, PartialEq, Eq, Serialize, JsonSchema)]
-pub struct Payment {
-    verification_key: PublicKey,
-    gateway_identity: PublicKey,
-    bandwidth: u64,
-}
-
-impl Payment {
-    pub fn new(verification_key: PublicKey, gateway_identity: PublicKey, bandwidth: u64) -> Self {
-        Payment {
-            verification_key,
-            gateway_identity,
-            bandwidth,
-        }
-    }
-
-    pub fn verification_key(&self) -> PublicKey {
-        self.verification_key
-    }
-}
-
-#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, Eq, JsonSchema)]
-pub struct LinkPaymentData {
-    pub verification_key: PublicKey,
-    pub gateway_identity: PublicKey,
-    pub bandwidth: u64,
-    pub signature: Signature,
-}
-
-impl LinkPaymentData {
-    pub fn new(
-        verification_key: [u8; 32],
-        gateway_identity: [u8; 32],
-        bandwidth: u64,
-        signature: [u8; 64],
-    ) -> Self {
-        LinkPaymentData {
-            verification_key: PublicKey::new(verification_key),
-            gateway_identity: PublicKey::new(gateway_identity),
-            bandwidth,
-            signature: Signature::new(signature),
-        }
-    }
-}
-
-#[derive(Clone, Debug, Deserialize, PartialEq, Eq, Serialize, JsonSchema)]
-pub struct PagedPaymentResponse {
-    pub payments: Vec<Payment>,
-    pub per_page: usize,
-    pub start_next_after: Option<PublicKey>,
-}
-
-impl PagedPaymentResponse {
-    pub fn new(
-        payments: Vec<Payment>,
-        per_page: usize,
-        start_next_after: Option<PublicKey>,
-    ) -> Self {
-        PagedPaymentResponse {
-            payments,
-            per_page,
-            start_next_after,
-        }
-    }
-}
@@ -1,3 +0,0 @@
-/target
-**/*.rs.bk
-Cargo.lock
@@ -1,6 +1,6 @@
 [package]
 name = "nym-bin-common"
-version = "0.3.0"
+version = "0.2.0"
 description = "Common code for nym binaries"
 edition = { workspace = true }
 authors = { workspace = true }
@@ -37,17 +37,17 @@ nym-execute = { path = "../../execute" }
 # at some point it might be possible to make it wasm-compatible
 # perhaps after https://github.com/cosmos/cosmos-rust/pull/97 is resolved (and tendermint-rs is updated)
 async-trait = { workspace = true, optional = true }
-bip39 = { version = "1", features = ["rand"], optional = true }
+bip39 = { workspace = true, features = ["rand"], optional = true }
 nym-config = { path = "../../config", optional = true }
 cosmrs = { git = "https://github.com/neacsu/cosmos-rust", branch = "neacsu/feegrant_support", features = ["rpc", "bip32", "cosmwasm"], optional = true}
-cw3 = { workspace = true, optional = true }
-cw4 = { workspace = true, optional = true }
+cw3 = { version = "0.13.4", optional = true }
+cw4 = { version = "0.13.4", optional = true }
 prost = { version = "0.10", default-features = false, optional = true }
 flate2 = { version = "1.0.20", optional = true }
 sha2 = { version = "0.9.5", optional = true }
 itertools = { version = "0.10", optional = true }
-cosmwasm-std = { workspace = true, optional = true }
-zeroize = { version = "1.5.7", optional = true }
+cosmwasm-std = { version = "1.0.0", optional = true }
+zeroize = { version = "1.5.7", optional = true, features = ["zeroize_derive"] }

 [dev-dependencies]
 ts-rs = "6.1.2"
@@ -749,12 +749,6 @@ where
        Ok(self.nym_api.get_mixnodes_detailed().await?)
    }

-    pub async fn get_cached_mixnodes_detailed_unfiltered(
-        &self,
-    ) -> Result<Vec<MixNodeBondAnnotated>, ValidatorClientError> {
-        Ok(self.nym_api.get_mixnodes_detailed_unfiltered().await?)
-    }
-
    pub async fn get_cached_rewarded_mixnodes(
        &self,
    ) -> Result<Vec<MixNodeDetails>, ValidatorClientError> {
@@ -144,21 +144,6 @@ impl Client {
        .await
    }

-    pub async fn get_mixnodes_detailed_unfiltered(
-        &self,
-    ) -> Result<Vec<MixNodeBondAnnotated>, NymAPIError> {
-        self.query_nym_api(
-            &[
-                routes::API_VERSION,
-                routes::STATUS,
-                routes::MIXNODES,
-                routes::DETAILED_UNFILTERED,
-            ],
-            NO_PARAMS,
-        )
-        .await
-    }
-
    pub async fn get_gateways(&self) -> Result<Vec<GatewayBond>, NymAPIError> {
        self.query_nym_api(&[routes::API_VERSION, routes::GATEWAYS], NO_PARAMS)
            .await
@@ -8,7 +8,6 @@ pub const MIXNODES: &str = "mixnodes";
 pub const GATEWAYS: &str = "gateways";

 pub const DETAILED: &str = "detailed";
-pub const DETAILED_UNFILTERED: &str = "detailed-unfiltered";
 pub const ACTIVE: &str = "active";
 pub const REWARDED: &str = "rewarded";
 pub const COCONUT_ROUTES: &str = "coconut";
@@ -43,6 +43,7 @@ pub use cosmrs::tendermint::Time as TendermintTime;
 pub use cosmrs::tx::{self, Gas};
 pub use cosmrs::Coin as CosmosCoin;
 pub use cosmrs::{bip32, AccountId, Decimal, Denom};
+use cosmwasm_std::Addr;
 pub use cosmwasm_std::Coin as CosmWasmCoin;
 pub use fee::{gas_price::GasPrice, GasAdjustable, GasAdjustment};
 pub use signing_client::Client as SigningNyxdClient;
@@ -369,6 +370,15 @@ where
        &self.client_address.as_ref().unwrap()[0]
    }

+    pub fn cw_address(&self) -> Addr
+    where
+        C: SigningCosmWasmClient,
+    {
+        // the call to unchecked is fine here as we're converting directly from `AccountId`
+        // which must have been a valid bech32 address
+        Addr::unchecked(self.address().as_ref())
+    }
+
    pub fn signer(&self) -> &DirectSecp256k1HdWallet
    where
        C: SigningCosmWasmClient,
@@ -6,6 +6,7 @@ use crate::nyxd::error::NyxdError;
 use crate::nyxd::NyxdClient;
 use async_trait::async_trait;
 use cosmrs::AccountId;
+use nym_contracts_common::signing::Nonce;
 use nym_mixnet_contract_common::delegation::{MixNodeDelegationResponse, OwnerProxySubKey};
 use nym_mixnet_contract_common::families::Family;
 use nym_mixnet_contract_common::mixnode::{
@@ -390,6 +391,13 @@ pub trait MixnetQueryClient {
            .await
    }

+    async fn get_signing_nonce(&self, address: &AccountId) -> Result<Nonce, NyxdError> {
+        self.query_mixnet_contract(MixnetQueryMsg::GetSigningNonce {
+            address: address.to_string(),
+        })
+        .await
+    }
+
    async fn get_node_family_by_label(&self, label: &str) -> Result<Option<Family>, NyxdError> {
        self.query_mixnet_contract(MixnetQueryMsg::GetFamilyByLabel {
            label: label.to_string(),
@@ -8,6 +8,8 @@ use crate::nyxd::error::NyxdError;
 use crate::nyxd::{Fee, NyxdClient, SigningCosmWasmClient};
 use async_trait::async_trait;
 use cosmrs::AccountId;
+use nym_contracts_common::signing::MessageSignature;
+use nym_mixnet_contract_common::gateway::GatewayConfigUpdate;
 use nym_mixnet_contract_common::mixnode::{MixNodeConfigUpdate, MixNodeCostParams};
 use nym_mixnet_contract_common::reward_params::{IntervalRewardingParamsUpdate, Performance};
 use nym_mixnet_contract_common::{
@@ -290,7 +292,7 @@ pub trait MixnetSigningClient {
        &self,
        mix_node: MixNode,
        cost_params: MixNodeCostParams,
-        owner_signature: String,
+        owner_signature: MessageSignature,
        pledge: Coin,
        fee: Option<Fee>,
    ) -> Result<ExecuteResult, NyxdError> {
@@ -311,7 +313,7 @@ pub trait MixnetSigningClient {
        owner: AccountId,
        mix_node: MixNode,
        cost_params: MixNodeCostParams,
-        owner_signature: String,
+        owner_signature: MessageSignature,
        pledge: Coin,
        fee: Option<Fee>,
    ) -> Result<ExecuteResult, NyxdError> {
@@ -442,7 +444,7 @@ pub trait MixnetSigningClient {
    async fn bond_gateway(
        &self,
        gateway: Gateway,
-        owner_signature: String,
+        owner_signature: MessageSignature,
        pledge: Coin,
        fee: Option<Fee>,
    ) -> Result<ExecuteResult, NyxdError> {
@@ -461,7 +463,7 @@ pub trait MixnetSigningClient {
        &self,
        owner: AccountId,
        gateway: Gateway,
-        owner_signature: String,
+        owner_signature: MessageSignature,
        pledge: Coin,
        fee: Option<Fee>,
    ) -> Result<ExecuteResult, NyxdError> {
@@ -497,6 +499,36 @@ pub trait MixnetSigningClient {
        .await
    }

+    async fn update_gateway_config(
+        &self,
+        new_config: GatewayConfigUpdate,
+        fee: Option<Fee>,
+    ) -> Result<ExecuteResult, NyxdError> {
+        self.execute_mixnet_contract(
+            fee,
+            MixnetExecuteMsg::UpdateGatewayConfig { new_config },
+            vec![],
+        )
+        .await
+    }
+
+    async fn update_gateway_config_on_behalf(
+        &self,
+        owner: AccountId,
+        new_config: GatewayConfigUpdate,
+        fee: Option<Fee>,
+    ) -> Result<ExecuteResult, NyxdError> {
+        self.execute_mixnet_contract(
+            fee,
+            MixnetExecuteMsg::UpdateGatewayConfigOnBehalf {
+                new_config,
+                owner: owner.to_string(),
+            },
+            vec![],
+        )
+        .await
+    }
+
    // delegation-related:

    async fn delegate_to_mixnode(
@@ -6,6 +6,8 @@ use crate::nyxd::cosmwasm_client::types::ExecuteResult;
 use crate::nyxd::error::NyxdError;
 use crate::nyxd::{Coin, Fee, NyxdClient};
 use async_trait::async_trait;
+use nym_contracts_common::signing::MessageSignature;
+use nym_mixnet_contract_common::gateway::GatewayConfigUpdate;
 use nym_mixnet_contract_common::mixnode::{MixNodeConfigUpdate, MixNodeCostParams};
 use nym_mixnet_contract_common::{Gateway, MixId, MixNode};
 use nym_vesting_contract_common::messages::{
@@ -34,6 +36,12 @@ pub trait VestingSigningClient {
        fee: Option<Fee>,
    ) -> Result<ExecuteResult, NyxdError>;

+    async fn vesting_update_gateway_config(
+        &self,
+        new_config: GatewayConfigUpdate,
+        fee: Option<Fee>,
+    ) -> Result<ExecuteResult, NyxdError>;
+
    async fn update_mixnet_address(
        &self,
        address: &str,
@@ -43,7 +51,7 @@ pub trait VestingSigningClient {
    async fn vesting_bond_gateway(
        &self,
        gateway: Gateway,
-        owner_signature: &str,
+        owner_signature: MessageSignature,
        pledge: Coin,
        fee: Option<Fee>,
    ) -> Result<ExecuteResult, NyxdError>;
@@ -61,7 +69,7 @@ pub trait VestingSigningClient {
        &self,
        mix_node: MixNode,
        cost_params: MixNodeCostParams,
-        owner_signature: &str,
+        owner_signature: MessageSignature,
        pledge: Coin,
        fee: Option<Fee>,
    ) -> Result<ExecuteResult, NyxdError>;
@@ -184,6 +192,19 @@ impl<C: SigningCosmWasmClient + Sync + Send + Clone> VestingSigningClient for Ny
            .await
    }

+    async fn vesting_update_gateway_config(
+        &self,
+        new_config: GatewayConfigUpdate,
+        fee: Option<Fee>,
+    ) -> Result<ExecuteResult, NyxdError> {
+        self.execute_vesting_contract(
+            fee,
+            VestingExecuteMsg::UpdateGatewayConfig { new_config },
+            vec![],
+        )
+        .await
+    }
+
    async fn update_mixnet_address(
        &self,
        address: &str,
@@ -208,14 +229,14 @@ impl<C: SigningCosmWasmClient + Sync + Send + Clone> VestingSigningClient for Ny
    async fn vesting_bond_gateway(
        &self,
        gateway: Gateway,
-        owner_signature: &str,
+        owner_signature: MessageSignature,
        pledge: Coin,
        fee: Option<Fee>,
    ) -> Result<ExecuteResult, NyxdError> {
        let fee = fee.unwrap_or(Fee::Auto(Some(self.simulated_gas_multiplier)));
        let req = VestingExecuteMsg::BondGateway {
            gateway,
-            owner_signature: owner_signature.to_string(),
+            owner_signature,
            amount: pledge.into(),
        };
        self.client
@@ -272,7 +293,7 @@ impl<C: SigningCosmWasmClient + Sync + Send + Clone> VestingSigningClient for Ny
        &self,
        mix_node: MixNode,
        cost_params: MixNodeCostParams,
-        owner_signature: &str,
+        owner_signature: MessageSignature,
        pledge: Coin,
        fee: Option<Fee>,
    ) -> Result<ExecuteResult, NyxdError> {
@@ -281,7 +302,7 @@ impl<C: SigningCosmWasmClient + Sync + Send + Clone> VestingSigningClient for Ny
            VestingExecuteMsg::BondMixnode {
                mix_node,
                cost_params,
-                owner_signature: owner_signature.to_string(),
+                owner_signature,
                amount: pledge.into(),
            },
            vec![],
@@ -8,7 +8,7 @@ use cosmrs::crypto::PublicKey;
 use cosmrs::tx::SignDoc;
 use cosmrs::{tx, AccountId};
 use nym_config::defaults;
-use zeroize::Zeroize;
+use zeroize::{Zeroize, ZeroizeOnDrop};

 /// Derivation information required to derive a keypair and an address from a mnemonic.
 #[derive(Debug, Clone)]
@@ -41,7 +41,7 @@ impl AccountData {

 type Secp256k1Keypair = (SigningKey, PublicKey);

-#[derive(Debug, Clone)]
+#[derive(Debug, Clone, Zeroize, ZeroizeOnDrop)]
 pub struct DirectSecp256k1HdWallet {
    /// Base secret
    secret: bip39::Mnemonic,
@@ -54,30 +54,10 @@ pub struct DirectSecp256k1HdWallet {
    // that would include the secret key which is a dyn EcdsaSigner and hence not Sync making the wallet
    // not Sync and if used on the signing client in an async trait, it wouldn't be Send
    /// Derivation instructions
+    #[zeroize(skip)]
    accounts: Vec<Secp256k1Derivation>,
 }

-impl Zeroize for DirectSecp256k1HdWallet {
-    fn zeroize(&mut self) {
-        // in ideal world, Mnemonic would have had zeroize defined on it (there's an almost year old PR that introduces it)
-        // and the memory would have been filled with zeroes.
-        //
-        // we really don't want to keep our real mnemonic in memory, so let's do the semi-nasty thing
-        // of overwriting it with a fresh mnemonic that was never used before
-        //
-        // note: this function can only fail on an invalid word count, which clearly is not the case here
-        self.secret = bip39::Mnemonic::generate(self.secret.word_count()).unwrap();
-        self.seed.zeroize();
-        // there's nothing secret about derivation paths
-    }
-}
-
-impl Drop for DirectSecp256k1HdWallet {
-    fn drop(&mut self) {
-        self.zeroize()
-    }
-}
-
 impl DirectSecp256k1HdWallet {
    pub fn builder(prefix: &str) -> DirectSecp256k1HdWalletBuilder {
        DirectSecp256k1HdWalletBuilder::new(prefix)
@@ -6,12 +6,12 @@ edition = "2021"

 [dependencies]
 base64 = "0.13.0"
-bip39 = "1.0.1"
+bip39 = { workspace = true }
 bs58 = "0.4"
 comfy-table = "6.0.0"
 cfg-if = "1.0.0"
 clap = { version = "4.0", features = ["derive"] }
-cw-utils = { workspace = true }
+cw-utils = { version = "0.13.4" }
 handlebars = "3.0.1"
 humantime-serde = "1.0"
 k256 = { version = "0.10", features = ["ecdsa", "sha256"] }
@@ -26,10 +26,11 @@ url = "2.2"
 tap = "1"

 cosmrs = { git = "https://github.com/neacsu/cosmos-rust", branch = "neacsu/feegrant_support" }
-cosmwasm-std = { workspace = true }
+cosmwasm-std = { version = "1.0.0" }

 validator-client = { path = "../client-libs/validator-client", features = ["nyxd-client"] }
 nym-network-defaults = { path = "../network-defaults" }
+nym-contracts-common = { path = "../cosmwasm-smart-contracts/contracts-common" }
 nym-mixnet-contract-common = { path = "../cosmwasm-smart-contracts/mixnet-contract" }
 nym-vesting-contract-common = { path = "../cosmwasm-smart-contracts/vesting-contract" }
 nym-coconut-bandwidth-contract-common = { path = "../cosmwasm-smart-contracts/coconut-bandwidth-contract" }
@@ -1,13 +1,20 @@
 // Copyright 2022 - Nym Technologies SA <contact@nymtech.net>
 // SPDX-License-Identifier: Apache-2.0

+use cosmrs::AccountId;
+use cosmwasm_std::{Addr, Coin as CosmWasmCoin, Decimal};
+use log::error;
 use std::error::Error;
 use std::fmt::Display;
-
-use cosmwasm_std::{Coin as CosmWasmCoin, Decimal};
-use log::error;
 use validator_client::nyxd::Coin;

+// TODO: perhaps it should be moved to some global common crate?
+pub fn account_id_to_cw_addr(account_id: &AccountId) -> Addr {
+    // the call to unchecked is fine here as we're converting directly from `AccountId`
+    // which must have been a valid bech32 address
+    Addr::unchecked(account_id.as_ref())
+}
+
 pub fn pretty_coin(coin: &Coin) -> String {
    let amount = Decimal::from_ratio(coin.amount, 1_000_000u128);
    let denom = if coin.denom.starts_with('u') {
@@ -6,9 +6,11 @@ use clap::{Args, Subcommand};
 pub mod rewards;

 pub mod delegate_to_mixnode;
+pub mod pledge_more;
 pub mod query_for_delegations;
 pub mod undelegate_from_mixnode;
 pub mod vesting_delegate_to_mixnode;
+pub mod vesting_pledge_more;
 pub mod vesting_undelegate_from_mixnode;

 #[derive(Debug, Args)]
@@ -32,4 +34,8 @@ pub enum MixnetDelegatorsCommands {
    DelegateVesting(vesting_delegate_to_mixnode::Args),
    /// Undelegate from a mixnode (when originally using locked tokens)
    UndelegateVesting(vesting_undelegate_from_mixnode::Args),
+    /// Pledge more
+    PledgeMore(pledge_more::Args),
+    /// Pledge more with locked tokens
+    PledgeMoreVesting(vesting_pledge_more::Args),
 }
@@ -0,0 +1,29 @@
+// Copyright 2021 - Nym Technologies SA <contact@nymtech.net>
+// SPDX-License-Identifier: Apache-2.0
+
+use crate::context::SigningClient;
+use clap::Parser;
+use log::info;
+use nym_mixnet_contract_common::Coin;
+use validator_client::nyxd::traits::MixnetSigningClient;
+
+#[derive(Debug, Parser)]
+pub struct Args {
+    #[clap(long)]
+    pub amount: u128,
+}
+
+pub async fn pledge_more(args: Args, client: SigningClient) {
+    let denom = client.current_chain_details().mix_denom.base.as_str();
+
+    info!("Starting to pledge more");
+
+    let coin = Coin::new(args.amount, denom);
+
+    let res = client
+        .pledge_more(coin.into(), None)
+        .await
+        .expect("failed to pledge more!");
+
+    info!("pledging more: {:?}", res);
+}
@@ -0,0 +1,30 @@
+// Copyright 2021 - Nym Technologies SA <contact@nymtech.net>
+// SPDX-License-Identifier: Apache-2.0
+
+use clap::Parser;
+use log::info;
+use nym_mixnet_contract_common::Coin;
+use validator_client::nyxd::VestingSigningClient;
+
+use crate::context::SigningClient;
+
+#[derive(Debug, Parser)]
+pub struct Args {
+    #[clap(long)]
+    pub amount: u128,
+}
+
+pub async fn vesting_pledge_more(args: Args, client: SigningClient) {
+    let denom = client.current_chain_details().mix_denom.base.as_str();
+
+    info!("Starting vesting pledge more");
+
+    let coin = Coin::new(args.amount, denom);
+
+    let res = client
+        .vesting_pledge_more(coin.into(), None)
+        .await
+        .expect("failed to pledge more!");
+
+    info!("vesting pledge more: {:?}", res);
+}
@@ -4,6 +4,7 @@
 use crate::context::SigningClient;
 use clap::Parser;
 use log::{info, warn};
+use nym_contracts_common::signing::MessageSignature;
 use nym_mixnet_contract_common::Coin;
 use nym_network_defaults::{DEFAULT_CLIENT_LISTENING_PORT, DEFAULT_MIX_LISTENING_PORT};
 use validator_client::nyxd::traits::MixnetSigningClient;
@@ -14,7 +15,7 @@ pub struct Args {
    pub host: String,

    #[clap(long)]
-    pub signature: String,
+    pub signature: MessageSignature,

    #[clap(long)]
    pub mix_port: Option<u16>,
@@ -23,7 +24,7 @@ pub struct Args {
    pub clients_port: Option<u16>,

    #[clap(long)]
-    pub location: Option<String>,
+    pub location: String,

    #[clap(long)]
    pub sphinx_key: String,
@@ -59,9 +60,7 @@ pub async fn bond_gateway(args: Args, client: SigningClient) {
        host: args.host,
        mix_port: args.mix_port.unwrap_or(DEFAULT_MIX_LISTENING_PORT),
        clients_port: args.clients_port.unwrap_or(DEFAULT_CLIENT_LISTENING_PORT),
-        location: args
-            .location
-            .unwrap_or_else(|| "secret gateway location".to_owned()),
+        location: args.location,
        sphinx_key: args.sphinx_key,
        identity_key: args.identity_key,
        version: args.version,
@@ -0,0 +1,81 @@
+// Copyright 2023 - Nym Technologies SA <contact@nymtech.net>
+// SPDX-License-Identifier: Apache-2.0
+
+use crate::context::SigningClient;
+use crate::utils::account_id_to_cw_addr;
+use clap::Parser;
+use cosmwasm_std::Coin;
+use nym_mixnet_contract_common::construct_gateway_bonding_sign_payload;
+use nym_network_defaults::{DEFAULT_CLIENT_LISTENING_PORT, DEFAULT_MIX_LISTENING_PORT};
+use validator_client::nyxd::traits::MixnetQueryClient;
+
+#[derive(Debug, Parser)]
+pub struct Args {
+    #[clap(long)]
+    pub host: String,
+
+    #[clap(long)]
+    pub mix_port: Option<u16>,
+
+    #[clap(long)]
+    pub clients_port: Option<u16>,
+
+    #[clap(long)]
+    pub location: String,
+
+    #[clap(long)]
+    pub sphinx_key: String,
+
+    #[clap(long)]
+    pub identity_key: String,
+
+    #[clap(long)]
+    pub version: String,
+
+    #[clap(
+        long,
+        help = "bonding amount in current DENOMINATION (so it would be 'unym', rather than 'nym')"
+    )]
+    pub amount: u128,
+
+    /// Indicates whether the gateway is going to get bonded via a vesting account
+    #[arg(long)]
+    pub with_vesting_account: bool,
+}
+
+pub async fn create_payload(args: Args, client: SigningClient) {
+    let denom = client.current_chain_details().mix_denom.base.as_str();
+
+    let gateway = nym_mixnet_contract_common::Gateway {
+        host: args.host,
+        mix_port: args.mix_port.unwrap_or(DEFAULT_MIX_LISTENING_PORT),
+        clients_port: args.clients_port.unwrap_or(DEFAULT_CLIENT_LISTENING_PORT),
+        location: args.location,
+        sphinx_key: args.sphinx_key,
+        identity_key: args.identity_key,
+        version: args.version,
+    };
+
+    let coin = Coin::new(args.amount, denom);
+
+    let nonce = match client.get_signing_nonce(client.address()).await {
+        Ok(nonce) => nonce,
+        Err(err) => {
+            eprint!(
+                "failed to query for the signing nonce of {}: {err}",
+                client.address()
+            );
+            return;
+        }
+    };
+
+    let address = account_id_to_cw_addr(client.address());
+    let proxy = if args.with_vesting_account {
+        Some(account_id_to_cw_addr(client.vesting_contract_address()))
+    } else {
+        None
+    };
+
+    let payload = construct_gateway_bonding_sign_payload(nonce, address, proxy, coin, gateway);
+    println!("{}", payload.to_base58_string().unwrap())
+}
@@ -4,6 +4,8 @@
 use clap::{Args, Subcommand};

 pub mod bond_gateway;
+pub mod gateway_bonding_sign_payload;
+pub mod settings;
 pub mod unbond_gateway;
 pub mod vesting_bond_gateway;
 pub mod vesting_unbond_gateway;
@@ -17,12 +19,16 @@ pub struct MixnetOperatorsGateway {

 #[derive(Debug, Subcommand)]
 pub enum MixnetOperatorsGatewayCommands {
+    /// Manage your gateway settings stored in the directory
+    Settings(settings::MixnetOperatorsGatewaySettings),
    /// Bond to a gateway
    Bond(bond_gateway::Args),
-    /// Unbound from a gateway
-    Unbound(unbond_gateway::Args),
+    /// Unbond from a gateway
+    Unbond(unbond_gateway::Args),
    /// Bond to a gateway with locked tokens
    VestingBond(vesting_bond_gateway::Args),
-    /// Unbound from a gateway (when originally using locked tokens)
-    VestingUnbound(vesting_unbond_gateway::Args),
+    /// Unbond from a gateway (when originally using locked tokens)
+    VestingUnbond(vesting_unbond_gateway::Args),
+    /// Create base58-encoded payload required for producing valid bonding signature.
+    CreateGatewayBondingSignPayload(gateway_bonding_sign_payload::Args),
 }
@@ -0,0 +1,22 @@
+// Copyright 2023 - Nym Technologies SA <contact@nymtech.net>
+// SPDX-License-Identifier: Apache-2.0
+
+use clap::{Args, Subcommand};
+
+pub mod update_config;
+pub mod vesting_update_config;
+
+#[derive(Debug, Args)]
+#[clap(args_conflicts_with_subcommands = true, subcommand_required = true)]
+pub struct MixnetOperatorsGatewaySettings {
+    #[clap(subcommand)]
+    pub command: MixnetOperatorsGatewaySettingsCommands,
+}
+
+#[derive(Debug, Subcommand)]
+pub enum MixnetOperatorsGatewaySettingsCommands {
+    /// Update gateway configuration
+    UpdateConfig(update_config::Args),
+    /// Update gateway configuration for a gateway bonded with locked tokens
+    VestingUpdateConfig(vesting_update_config::Args),
+}
@@ -0,0 +1,60 @@
+// Copyright 2023 - Nym Technologies SA <contact@nymtech.net>
+// SPDX-License-Identifier: Apache-2.0
+
+use crate::context::SigningClient;
+use clap::Parser;
+use log::info;
+use nym_mixnet_contract_common::GatewayConfigUpdate;
+use validator_client::nyxd::traits::{MixnetQueryClient, MixnetSigningClient};
+
+#[derive(Debug, Parser)]
+pub struct Args {
+    #[clap(long)]
+    pub host: Option<String>,
+
+    #[clap(long)]
+    pub mix_port: Option<u16>,
+
+    #[clap(long)]
+    pub clients_port: Option<u16>,
+
+    #[clap(long)]
+    pub location: Option<String>,
+
+    #[clap(long)]
+    pub version: Option<String>,
+}
+
+pub async fn update_config(args: Args, client: SigningClient) {
+    info!("Update gateway config!");
+
+    let current_details = match client
+        .get_owned_gateway(client.address())
+        .await
+        .expect("failed to query the chain for gateway details")
+        .gateway
+    {
+        Some(details) => details,
+        None => {
+            log::warn!("this operator does not own a gateway to update");
+            return;
+        }
+    };
+
+    let update = GatewayConfigUpdate {
+        host: args.host.unwrap_or(current_details.gateway.host),
+        mix_port: args.mix_port.unwrap_or(current_details.gateway.mix_port),
+        clients_port: args
+            .clients_port
+            .unwrap_or(current_details.gateway.clients_port),
+        location: args.location.unwrap_or(current_details.gateway.location),
+        version: args.version.unwrap_or(current_details.gateway.version),
+    };
+
+    let res = client
+        .update_gateway_config(update, None)
+        .await
+        .expect("updating gateway config");
+
+    info!("gateway config updated: {:?}", res)
+}
@@ -0,0 +1,61 @@
+// Copyright 2023 - Nym Technologies SA <contact@nymtech.net>
+// SPDX-License-Identifier: Apache-2.0
+
+use crate::context::SigningClient;
+use clap::Parser;
+use log::info;
+use nym_mixnet_contract_common::GatewayConfigUpdate;
+use validator_client::nyxd::traits::MixnetQueryClient;
+use validator_client::nyxd::VestingSigningClient;
+
+#[derive(Debug, Parser)]
+pub struct Args {
+    #[clap(long)]
+    pub host: Option<String>,
+
+    #[clap(long)]
+    pub mix_port: Option<u16>,
+
+    #[clap(long)]
+    pub clients_port: Option<u16>,
+
+    #[clap(long)]
+    pub location: Option<String>,
+
+    #[clap(long)]
+    pub version: Option<String>,
+}
+
+pub async fn vesting_update_config(client: SigningClient, args: Args) {
+    info!("Update vesting gateway config!");
+
+    let current_details = match client
+        .get_owned_gateway(client.address())
+        .await
+        .expect("failed to query the chain for gateway details")
+        .gateway
+    {
+        Some(details) => details,
+        None => {
+            log::warn!("this operator does not own a gateway to update");
+            return;
+        }
+    };
+
+    let update = GatewayConfigUpdate {
+        host: args.host.unwrap_or(current_details.gateway.host),
+        mix_port: args.mix_port.unwrap_or(current_details.gateway.mix_port),
+        clients_port: args
+            .clients_port
+            .unwrap_or(current_details.gateway.clients_port),
+        location: args.location.unwrap_or(current_details.gateway.location),
+        version: args.version.unwrap_or(current_details.gateway.version),
+    };
+
+    let res = client
+        .vesting_update_gateway_config(update, None)
+        .await
+        .expect("updating vesting gateway config");
+
+    info!("gateway config updated: {:?}", res)
+}
@@ -4,6 +4,7 @@
 use crate::context::SigningClient;
 use clap::Parser;
 use log::{info, warn};
+use nym_contracts_common::signing::MessageSignature;
 use nym_mixnet_contract_common::{Coin, Gateway};
 use nym_network_defaults::{DEFAULT_CLIENT_LISTENING_PORT, DEFAULT_MIX_LISTENING_PORT};
 use validator_client::nyxd::VestingSigningClient;
@@ -14,7 +15,7 @@ pub struct Args {
    pub host: String,

    #[clap(long)]
-    pub signature: String,
+    pub signature: MessageSignature,

    #[clap(long)]
    pub mix_port: Option<u16>,
@@ -23,7 +24,7 @@ pub struct Args {
    pub clients_port: Option<u16>,

    #[clap(long)]
-    pub location: Option<String>,
+    pub location: String,

    #[clap(long)]
    pub sphinx_key: String,
@@ -57,9 +58,7 @@ pub async fn vesting_bond_gateway(client: SigningClient, args: Args, denom: &str
        host: args.host,
        mix_port: args.mix_port.unwrap_or(DEFAULT_MIX_LISTENING_PORT),
        clients_port: args.clients_port.unwrap_or(DEFAULT_CLIENT_LISTENING_PORT),
-        location: args
-            .location
-            .unwrap_or_else(|| "secret gateway location".to_owned()),
+        location: args.location,
        sphinx_key: args.sphinx_key,
        identity_key: args.identity_key,
        version: args.version,
@@ -68,7 +67,7 @@ pub async fn vesting_bond_gateway(client: SigningClient, args: Args, denom: &str
    let coin = Coin::new(args.amount, denom);

    let res = client
-        .vesting_bond_gateway(gateway, &args.signature, coin.into(), None)
+        .vesting_bond_gateway(gateway, args.signature, coin.into(), None)
        .await
        .expect("failed to bond gateway!");

@@ -5,6 +5,7 @@ use clap::Parser;
 use cosmwasm_std::Uint128;
 use log::{info, warn};

+use nym_contracts_common::signing::MessageSignature;
 use nym_mixnet_contract_common::{Coin, MixNodeCostParams, Percent};
 use nym_network_defaults::{
    DEFAULT_HTTP_API_LISTENING_PORT, DEFAULT_MIX_LISTENING_PORT, DEFAULT_VERLOC_LISTENING_PORT,
@@ -20,7 +21,7 @@ pub struct Args {
    pub host: String,

    #[clap(long)]
-    pub signature: String,
+    pub signature: MessageSignature,

    #[clap(long)]
    pub mix_port: Option<u16>,
@@ -0,0 +1,108 @@
+// Copyright 2023 - Nym Technologies SA <contact@nymtech.net>
+// SPDX-License-Identifier: Apache-2.0
+
+use crate::context::SigningClient;
+use crate::utils::account_id_to_cw_addr;
+use clap::Parser;
+use cosmwasm_std::{Coin, Uint128};
+use nym_contracts_common::Percent;
+use nym_mixnet_contract_common::{construct_mixnode_bonding_sign_payload, MixNodeCostParams};
+use nym_network_defaults::{
+    DEFAULT_HTTP_API_LISTENING_PORT, DEFAULT_MIX_LISTENING_PORT, DEFAULT_VERLOC_LISTENING_PORT,
+};
+use validator_client::nyxd::traits::MixnetQueryClient;
+use validator_client::nyxd::CosmWasmCoin;
+
+#[derive(Debug, Parser)]
+pub struct Args {
+    #[clap(long)]
+    pub host: String,
+
+    #[clap(long)]
+    pub mix_port: Option<u16>,
+
+    #[clap(long)]
+    pub verloc_port: Option<u16>,
+
+    #[clap(long)]
+    pub http_api_port: Option<u16>,
+
+    #[clap(long)]
+    pub sphinx_key: String,
+
+    #[clap(long)]
+    pub identity_key: String,
+
+    #[clap(long)]
+    pub version: String,
+
+    #[clap(long)]
+    pub profit_margin_percent: Option<u8>,
+
+    #[clap(
+        long,
+        help = "operating cost in current DENOMINATION (so it would be 'unym', rather than 'nym')"
+    )]
+    pub interval_operating_cost: Option<u128>,
+
+    #[clap(
+        long,
+        help = "bonding amount in current DENOMINATION (so it would be 'unym', rather than 'nym')"
+    )]
+    pub amount: u128,
+
+    /// Indicates whether the mixnode is going to get bonded via a vesting account
+    #[arg(long)]
+    pub with_vesting_account: bool,
+}
+
+pub async fn create_payload(args: Args, client: SigningClient) {
+    let denom = client.current_chain_details().mix_denom.base.as_str();
+
+    let mixnode = nym_mixnet_contract_common::MixNode {
+        host: args.host,
+        mix_port: args.mix_port.unwrap_or(DEFAULT_MIX_LISTENING_PORT),
+        verloc_port: args.verloc_port.unwrap_or(DEFAULT_VERLOC_LISTENING_PORT),
+        http_api_port: args
+            .http_api_port
+            .unwrap_or(DEFAULT_HTTP_API_LISTENING_PORT),
+        sphinx_key: args.sphinx_key,
+        identity_key: args.identity_key,
+        version: args.version,
+    };
+
+    let coin = Coin::new(args.amount, denom);
+
+    let cost_params = MixNodeCostParams {
+        profit_margin_percent: Percent::from_percentage_value(
+            args.profit_margin_percent.unwrap_or(10) as u64,
+        )
+        .unwrap(),
+        interval_operating_cost: CosmWasmCoin {
+            denom: denom.into(),
+            amount: Uint128::new(args.interval_operating_cost.unwrap_or(40_000_000)),
+        },
+    };
+
+    let nonce = match client.get_signing_nonce(client.address()).await {
+        Ok(nonce) => nonce,
+        Err(err) => {
+            eprint!(
+                "failed to query for the signing nonce of {}: {err}",
+                client.address()
+            );
+            return;
+        }
+    };
+
+    let address = account_id_to_cw_addr(client.address());
+    let proxy = if args.with_vesting_account {
+        Some(account_id_to_cw_addr(client.vesting_contract_address()))
+    } else {
+        None
+    };
+
+    let payload =
+        construct_mixnode_bonding_sign_payload(nonce, address, proxy, coin, mixnode, cost_params);
+    println!("{}", payload.to_base58_string().unwrap())
+}
@@ -5,6 +5,7 @@ use clap::{Args, Subcommand};

 pub mod bond_mixnode;
 pub mod keys;
+pub mod mixnode_bonding_sign_payload;
 pub mod rewards;
 pub mod settings;
 pub mod unbond_mixnode;
@@ -28,10 +29,12 @@ pub enum MixnetOperatorsMixnodeCommands {
    Settings(settings::MixnetOperatorsMixnodeSettings),
    /// Bond to a mixnode
    Bond(bond_mixnode::Args),
-    /// Unbound from a mixnode
-    Unbound(unbond_mixnode::Args),
+    /// Unbond from a mixnode
+    Unbond(unbond_mixnode::Args),
    /// Bond to a mixnode with locked tokens
    BondVesting(vesting_bond_mixnode::Args),
-    /// Unbound from a mixnode (when originally using locked tokens)
-    UnboundVesting(vesting_unbond_mixnode::Args),
+    /// Unbond from a mixnode (when originally using locked tokens)
+    UnbondVesting(vesting_unbond_mixnode::Args),
+    /// Create base58-encoded payload required for producing valid bonding signature.
+    CreateMixnodeBondingSignPayload(mixnode_bonding_sign_payload::Args),
 }
@@ -1,10 +1,11 @@
-// Copyright 2021 - Nym Technologies SA <contact@nymtech.net>
+// Copyright 2021-2023 - Nym Technologies SA <contact@nymtech.net>
 // SPDX-License-Identifier: Apache-2.0

 use crate::context::SigningClient;
 use clap::Parser;
 use cosmwasm_std::Uint128;
 use log::{info, warn};
+use nym_contracts_common::signing::MessageSignature;
 use nym_mixnet_contract_common::{Coin, MixNodeCostParams};
 use nym_mixnet_contract_common::{MixNode, Percent};
 use nym_network_defaults::{
@@ -18,7 +19,7 @@ pub struct Args {
    pub host: String,

    #[clap(long)]
-    pub signature: String,
+    pub signature: MessageSignature,

    #[clap(long)]
    pub mix_port: Option<u16>,
@@ -95,7 +96,7 @@ pub async fn vesting_bond_mixnode(client: SigningClient, args: Args, denom: &str
    };

    let res = client
-        .vesting_bond_mixnode(mixnode, cost_params, &args.signature, coin.into(), None)
+        .vesting_bond_mixnode(mixnode, cost_params, args.signature, coin.into(), None)
        .await
        .expect("failed to bond vesting mixnode!");

@@ -6,7 +6,7 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

 [dependencies]
-cosmwasm-std = { workspace = true }
+cosmwasm-std = "1.0.0"
 schemars = "0.8"
 serde = { version = "1.0.103", default-features = false, features = ["derive"] }
 nym-multisig-contract-common = { path = "../multisig-contract" }
@@ -6,8 +6,8 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

 [dependencies]
-cosmwasm-std = { workspace = true }
-cw-utils = { workspace = true }
+cosmwasm-std = "1.0.0"
+cw-utils = "0.13.4"
 schemars = "0.8"
 serde = { version = "1.0.103", default-features = false, features = ["derive"] }

@@ -21,7 +21,7 @@ pub const TOTAL_DEALINGS: usize = 2 + 2 + 1;
 #[derive(Serialize, Deserialize, Default, Clone, Debug, PartialEq, Eq, Ord, PartialOrd)]
 pub struct InitialReplacementData {
    pub initial_dealers: Vec<Addr>,
-    pub initial_height: Option<u64>,
+    pub initial_height: u64,
 }

 #[derive(
@@ -1,6 +1,6 @@
 [package]
 name = "nym-contracts-common"
-version = "0.3.0"
+version = "0.2.0"
 description = "Common library for Nym cosmwasm contracts"
 edition = { workspace = true }
 authors = { workspace = true }
@@ -9,7 +9,7 @@ repository = { workspace = true }

 [dependencies]
 bs58 = "0.4.0"
-cosmwasm-std = { workspace = true }
+cosmwasm-std = "1.0.0"
 schemars = "0.8"
 serde = { version = "1.0", features = ["derive"] }
 thiserror = "1"
@@ -6,6 +6,7 @@

 pub mod dealings;
 pub mod events;
+pub mod signing;
 pub mod types;

 pub use types::*;
@@ -0,0 +1,259 @@
+// Copyright 2023 - Nym Technologies SA <contact@nymtech.net>
+// SPDX-License-Identifier: Apache-2.0
+
+use cosmwasm_std::{from_slice, to_vec, Addr, Coin, MessageInfo, StdResult};
+use schemars::JsonSchema;
+use serde::de::DeserializeOwned;
+use serde::{de, Deserialize, Deserializer, Serialize, Serializer};
+use std::fmt::{Display, Formatter};
+use std::str::FromStr;
+pub use verifier::Verifier;
+
+pub mod verifier;
+
+pub type Nonce = u32;
+
+// define this type explicitly for [hopefully] better usability
+// (so you wouldn't need to worry about whether you should use bytes, bs58, etc.)
+#[derive(Clone, Debug, PartialEq, JsonSchema)]
+pub struct MessageSignature(Vec<u8>);
+
+impl MessageSignature {
+    pub fn as_bs58_string(&self) -> String {
+        bs58::encode(&self.0).into_string()
+    }
+}
+
+impl<'a> From<&'a [u8]> for MessageSignature {
+    fn from(value: &'a [u8]) -> Self {
+        MessageSignature(value.to_vec())
+    }
+}
+
+impl From<Vec<u8>> for MessageSignature {
+    fn from(value: Vec<u8>) -> Self {
+        MessageSignature(value)
+    }
+}
+
+impl<'a> TryFrom<&'a str> for MessageSignature {
+    type Error = bs58::decode::Error;
+
+    fn try_from(value: &'a str) -> Result<Self, Self::Error> {
+        Ok(MessageSignature(bs58::decode(value).into_vec()?))
+    }
+}
+
+impl TryFrom<String> for MessageSignature {
+    type Error = bs58::decode::Error;
+
+    fn try_from(value: String) -> Result<Self, Self::Error> {
+        Self::try_from(value.as_str())
+    }
+}
+
+impl AsRef<[u8]> for MessageSignature {
+    #[inline]
+    fn as_ref(&self) -> &[u8] {
+        &self.0
+    }
+}
+
+impl<'de> Deserialize<'de> for MessageSignature {
+    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
+    where
+        D: Deserializer<'de>,
+    {
+        let inner = String::deserialize(deserializer)?;
+        let bytes = bs58::decode(inner).into_vec().map_err(de::Error::custom)?;
+        Ok(MessageSignature(bytes))
+    }
+}
+
+impl Serialize for MessageSignature {
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+    where
+        S: Serializer,
+    {
+        let bs58_encoded = self.as_bs58_string();
+        bs58_encoded.serialize(serializer)
+    }
+}
+
+impl Display for MessageSignature {
+    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
+        write!(f, "{}", self.as_bs58_string())
+    }
+}
+
+impl FromStr for MessageSignature {
+    type Err = bs58::decode::Error;
+
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
+        Self::try_from(s)
+    }
+}
+
+pub trait SigningPurpose {
+    fn message_type() -> MessageType;
+}
+
+#[derive(Serialize, Deserialize)]
+#[serde(transparent)]
+pub struct MessageType(String);
+
+impl MessageType {
+    pub fn new<S: Into<String>>(typ: S) -> Self {
+        MessageType(typ.into())
+    }
+}
+
+impl<T> From<T> for MessageType
+where
+    T: ToString,
+{
+    fn from(value: T) -> Self {
+        MessageType(value.to_string())
+    }
+}
+
+#[derive(Default, Debug, Serialize, Deserialize, Copy, Clone)]
+#[serde(rename_all = "lowercase")]
+pub enum SigningAlgorithm {
+    #[default]
+    Ed25519,
+    Secp256k1,
+}
+
+impl SigningAlgorithm {
+    pub fn is_ed25519(&self) -> bool {
+        matches!(self, SigningAlgorithm::Ed25519)
+    }
+}
+
+// TODO: maybe move this one to repo-wide common?
+// TODO: should it perhaps also include the public key itself?
+#[derive(Serialize, Deserialize)]
+pub struct SignableMessage<T> {
+    pub nonce: u32,
+    pub algorithm: SigningAlgorithm,
+    pub message_type: MessageType,
+
+    pub content: T,
+}
+
+impl<T> SignableMessage<T>
+where
+    T: SigningPurpose,
+{
+    pub fn new(nonce: u32, content: T) -> Self {
+        SignableMessage {
+            nonce,
+            algorithm: SigningAlgorithm::Ed25519,
+            message_type: T::message_type(),
+            content,
+        }
+    }
+
+    pub fn with_signing_algorithm(mut self, algorithm: SigningAlgorithm) -> Self {
+        self.algorithm = algorithm;
+        self
+    }
+
+    pub fn to_plaintext(&self) -> StdResult<Vec<u8>>
+    where
+        T: Serialize,
+    {
+        to_vec(self)
+    }
+
+    pub fn to_sha256_plaintext_digest(&self) -> StdResult<Vec<u8>>
+    where
+        T: Serialize,
+    {
+        unimplemented!()
+    }
+
+    pub fn to_json_string(&self) -> StdResult<String>
+    where
+        T: Serialize,
+    {
+        // if you look into implementation of `serde_json_wasm::to_string` this [i.e. the String conversion]
+        // CAN'T fail, but let's avoid this unnecessary unwrap either way
+        self.to_plaintext()
+            .map(|s| String::from_utf8(s).unwrap_or(String::from("SERIALIZATION FAILURE")))
+    }
+
+    pub fn to_base58_string(&self) -> StdResult<String>
+    where
+        T: Serialize,
+    {
+        self.to_plaintext().map(|s| bs58::encode(s).into_string())
+    }
+
+    pub fn try_from_bytes(bytes: &[u8]) -> StdResult<SignableMessage<T>>
+    where
+        T: DeserializeOwned,
+    {
+        from_slice(bytes)
+    }
+
+    pub fn try_from_string(raw: &str) -> StdResult<SignableMessage<T>>
+    where
+        T: DeserializeOwned,
+    {
+        Self::try_from_bytes(raw.as_bytes())
+    }
+
+    pub fn try_from_base58_string(raw: &str) -> bs58::decode::Result<StdResult<SignableMessage<T>>>
+    where
+        T: DeserializeOwned,
+    {
+        bs58::decode(raw)
+            .into_vec()
+            .map(|d| Self::try_from_bytes(&d))
+    }
+}
+
+#[derive(Serialize)]
+pub struct ContractMessageContent<T> {
+    pub sender: Addr,
+    pub proxy: Option<Addr>,
+    pub funds: Vec<Coin>,
+    pub data: T,
+}
+
+impl<T> SigningPurpose for ContractMessageContent<T>
+where
+    T: SigningPurpose,
+{
+    fn message_type() -> MessageType {
+        T::message_type()
+    }
+}
+
+impl<T> ContractMessageContent<T> {
+    pub fn new(sender: Addr, proxy: Option<Addr>, funds: Vec<Coin>, data: T) -> Self {
+        ContractMessageContent {
+            sender,
+            proxy,
+            funds,
+            data,
+        }
+    }
+
+    pub fn new_with_info(info: MessageInfo, signer: Addr, data: T) -> Self {
+        let proxy = if info.sender == signer {
+            None
+        } else {
+            Some(info.sender)
+        };
+
+        ContractMessageContent {
+            sender: signer,
+            proxy,
+            funds: info.funds,
+            data,
+        }
+    }
+}
@@ -0,0 +1,81 @@
+// Copyright 2023 - Nym Technologies SA <contact@nymtech.net>
+// SPDX-License-Identifier: Apache-2.0
+
+use crate::signing::{MessageSignature, SignableMessage, SigningAlgorithm, SigningPurpose};
+use cosmwasm_std::{Api, StdError, VerificationError};
+use serde::Serialize;
+use thiserror::Error;
+
+pub trait Verifier {
+    type Error: From<StdError>;
+
+    fn verify_message<T: Serialize + SigningPurpose>(
+        &self,
+        message: SignableMessage<T>,
+        signature: MessageSignature,
+        public_key: &[u8],
+    ) -> Result<bool, Self::Error> {
+        match message.algorithm {
+            SigningAlgorithm::Ed25519 => {
+                let plaintext = message.to_plaintext()?;
+                self.verify_ed25519(&plaintext, signature.as_ref(), public_key)
+            }
+            SigningAlgorithm::Secp256k1 => {
+                let plaintext = message.to_sha256_plaintext_digest()?;
+                self.verify_secp256k1(&plaintext, signature.as_ref(), public_key)
+            }
+        }
+    }
+
+    fn verify_ed25519(
+        &self,
+        _message: &[u8],
+        _signature: &[u8],
+        _public_key: &[u8],
+    ) -> Result<bool, Self::Error> {
+        unimplemented!()
+    }
+
+    fn verify_secp256k1(
+        &self,
+        _message_hash: &[u8],
+        _signature: &[u8],
+        _public_key: &[u8],
+    ) -> Result<bool, Self::Error> {
+        unimplemented!()
+    }
+}
+
+#[derive(Debug, Error, PartialEq)]
+pub enum ApiVerifierError {
+    #[error(transparent)]
+    Verification(#[from] VerificationError),
+
+    #[error(transparent)]
+    Std(#[from] StdError),
+}
+
+impl<T> Verifier for T
+where
+    T: Api + ?Sized,
+{
+    type Error = ApiVerifierError;
+
+    fn verify_ed25519(
+        &self,
+        message: &[u8],
+        signature: &[u8],
+        public_key: &[u8],
+    ) -> Result<bool, Self::Error> {
+        Ok(self.ed25519_verify(message, signature, public_key)?)
+    }
+
+    fn verify_secp256k1(
+        &self,
+        message_hash: &[u8],
+        signature: &[u8],
+        public_key: &[u8],
+    ) -> Result<bool, Self::Error> {
+        Ok(self.secp256k1_verify(message_hash, signature, public_key)?)
+    }
+}
@@ -6,6 +6,6 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

 [dependencies]
-cw4 = { workspace = true }
+cw4 = { version = "0.13.4" }
 schemars = "0.8"
 serde = { version = "1.0.103", default-features = false, features = ["derive"] }
@@ -1,6 +1,6 @@
 [package]
 name = "nym-mixnet-contract-common"
-version = "0.3.0"
+version = "0.2.0"
 description = "Common library for the Nym mixnet contract"
 rust-version = "1.62"
 edition = { workspace = true }
@@ -10,13 +10,15 @@ repository = { workspace = true }

 [dependencies]
 bs58 = "0.4.0"
-cosmwasm-std = { workspace = true }
+cosmwasm-std = "=1.0.0"
 serde = { version = "1.0", features = ["derive"] }
 serde_repr = "0.1"
 schemars = "0.8"
 thiserror = "1.0"
-contracts-common = { path = "../contracts-common", package = "nym-contracts-common", version = "0.3.0" }
-serde_json = "1.0.0"
+contracts-common = { path = "../contracts-common", package = "nym-contracts-common", version = "0.2.0" }
+# use 0.4.1 as that's the version used by cosmwasm-std 1.0.0
+# (and ideally we don't want to pull the same dependency twice)
+serde-json-wasm = "=0.4.1"
 humantime-serde = "1.1.1"

 # TO CHECK WHETHER STILL NEEDED:
@@ -2,6 +2,7 @@
 // SPDX-License-Identifier: Apache-2.0

 use crate::{EpochState, IdentityKey, MixId};
+use contracts_common::signing::verifier::ApiVerifierError;
 use cosmwasm_std::{Addr, Coin, Decimal};
 use thiserror::Error;

@@ -218,4 +219,10 @@ pub enum MixnetContractError {
        value: String,
        error_message: String,
    },
+
+    #[error("failed to verify message signature: {source}")]
+    SignatureVerificationFailure {
+        #[from]
+        source: ApiVerifierError,
+    },
 }
@@ -1,6 +1,7 @@
 // Copyright 2022 - Nym Technologies SA <contact@nymtech.net>
 // SPDX-License-Identifier: Apache-2.0

+use crate::gateway::GatewayConfigUpdate;
 use crate::mixnode::{MixNodeConfigUpdate, MixNodeCostParams};
 use crate::reward_params::{IntervalRewardParams, IntervalRewardingParamsUpdate};
 use crate::rewarding::RewardDistribution;
@@ -42,6 +43,7 @@ pub enum MixnetEventType {
    ReconcilePendingEvents,
    PendingIntervalConfigUpdate,
    IntervalConfigUpdate,
+    GatewayConfigUpdate,
 }

 impl From<MixnetEventType> for String {
@@ -86,6 +88,7 @@ impl ToString for MixnetEventType {
            MixnetEventType::PendingIntervalConfigUpdate => "pending_interval_config_update",
            MixnetEventType::IntervalConfigUpdate => "interval_config_update",
            MixnetEventType::DelegationOnUnbonding => "delegation_on_unbonding_node",
+            MixnetEventType::GatewayConfigUpdate => "gateway_config_update",
        };

        format!("{EVENT_VERSION_PREFIX}{event_name}")
@@ -122,6 +125,7 @@ pub const OLD_REWARDING_VALIDATOR_ADDRESS_KEY: &str = "old_rewarding_validator_a
 pub const NEW_REWARDING_VALIDATOR_ADDRESS_KEY: &str = "new_rewarding_validator_address";

 pub const UPDATED_MIXNODE_CONFIG_KEY: &str = "updated_mixnode_config";
+pub const UPDATED_GATEWAY_CONFIG_KEY: &str = "updated_gateway_config";
 pub const UPDATED_MIXNODE_COST_PARAMS_KEY: &str = "updated_mixnode_cost_params";

 // rewarding
@@ -382,6 +386,17 @@ pub fn new_mixnode_config_update_event(
        .add_attribute(UPDATED_MIXNODE_CONFIG_KEY, update.to_inline_json())
 }

+pub fn new_gateway_config_update_event(
+    owner: &Addr,
+    proxy: &Option<Addr>,
+    update: &GatewayConfigUpdate,
+) -> Event {
+    Event::new(MixnetEventType::GatewayConfigUpdate)
+        .add_attribute(OWNER_KEY, owner)
+        .add_optional_attribute(PROXY_KEY, proxy.as_ref())
+        .add_attribute(UPDATED_GATEWAY_CONFIG_KEY, update.to_inline_json())
+}
+
 pub fn new_mixnode_pending_cost_params_update_event(
    mix_id: MixId,
    owner: &Addr,
@@ -112,6 +112,26 @@ impl Display for GatewayBond {
    }
 }

+#[cfg_attr(feature = "generate-ts", derive(ts_rs::TS))]
+#[cfg_attr(
+    feature = "generate-ts",
+    ts(export_to = "ts-packages/types/src/types/rust/GatewayConfigUpdate.ts")
+)]
+#[derive(Clone, Debug, Deserialize, PartialEq, Eq, Serialize, JsonSchema)]
+pub struct GatewayConfigUpdate {
+    pub host: String,
+    pub mix_port: u16,
+    pub clients_port: u16,
+    pub location: String,
+    pub version: String,
+}
+
+impl GatewayConfigUpdate {
+    pub fn to_inline_json(&self) -> String {
+        serde_json_wasm::to_string(self).unwrap_or_else(|_| "serialisation failure".into())
+    }
+}
+
 #[derive(Clone, Debug, Deserialize, PartialEq, Serialize, JsonSchema)]
 pub struct PagedGatewayResponse {
    pub nodes: Vec<GatewayBond>,
@@ -17,6 +17,7 @@ mod msg;
 pub mod pending_events;
 pub mod reward_params;
 pub mod rewarding;
+pub mod signing_types;
 mod types;

 pub use contracts_common::types::*;
@@ -26,7 +27,8 @@ pub use delegation::{
    PagedMixNodeDelegationsResponse,
 };
 pub use gateway::{
-    Gateway, GatewayBond, GatewayBondResponse, GatewayOwnershipResponse, PagedGatewayResponse,
+    Gateway, GatewayBond, GatewayBondResponse, GatewayConfigUpdate, GatewayOwnershipResponse,
+    PagedGatewayResponse,
 };
 pub use interval::{
    CurrentIntervalResponse, EpochState, EpochStatus, Interval, NumberOfPendingEventsResponse,
@@ -43,4 +45,5 @@ pub use pending_events::{
    PendingIntervalEventData, PendingIntervalEventKind,
 };
 pub use reward_params::{IntervalRewardParams, IntervalRewardingParamsUpdate, RewardingParams};
+pub use signing_types::*;
 pub use types::*;
@@ -542,7 +542,7 @@ pub struct MixNodeCostParams {

 impl MixNodeCostParams {
    pub fn to_inline_json(&self) -> String {
-        serde_json::to_string(self).unwrap_or_else(|_| "serialisation failure".into())
+        serde_json_wasm::to_string(self).unwrap_or_else(|_| "serialisation failure".into())
    }
 }

@@ -636,7 +636,7 @@ pub struct MixNodeConfigUpdate {

 impl MixNodeConfigUpdate {
    pub fn to_inline_json(&self) -> String {
-        serde_json::to_string(self).unwrap_or_else(|_| "serialisation failure".into())
+        serde_json_wasm::to_string(self).unwrap_or_else(|_| "serialisation failure".into())
    }
 }

@@ -3,6 +3,7 @@

 use crate::delegation::OwnerProxySubKey;
 use crate::error::MixnetContractError;
+use crate::gateway::GatewayConfigUpdate;
 use crate::helpers::IntoBaseDecimal;
 use crate::mixnode::{MixNodeConfigUpdate, MixNodeCostParams};
 use crate::reward_params::{
@@ -10,6 +11,7 @@ use crate::reward_params::{
 };
 use crate::{delegation, ContractStateParams, Layer, LayerAssignment, MixId, Percent};
 use crate::{Gateway, IdentityKey, MixNode};
+use contracts_common::signing::MessageSignature;
 use cosmwasm_std::Decimal;
 use schemars::JsonSchema;
 use serde::{Deserialize, Serialize};
@@ -153,12 +155,12 @@ pub enum ExecuteMsg {
    BondMixnode {
        mix_node: MixNode,
        cost_params: MixNodeCostParams,
-        owner_signature: String,
+        owner_signature: MessageSignature,
    },
    BondMixnodeOnBehalf {
        mix_node: MixNode,
        cost_params: MixNodeCostParams,
-        owner_signature: String,
+        owner_signature: MessageSignature,
        owner: String,
    },
    PledgeMore {},
@@ -187,17 +189,24 @@ pub enum ExecuteMsg {
    // gateway-related:
    BondGateway {
        gateway: Gateway,
-        owner_signature: String,
+        owner_signature: MessageSignature,
    },
    BondGatewayOnBehalf {
        gateway: Gateway,
        owner: String,
-        owner_signature: String,
+        owner_signature: MessageSignature,
    },
    UnbondGateway {},
    UnbondGatewayOnBehalf {
        owner: String,
    },
+    UpdateGatewayConfig {
+        new_config: GatewayConfigUpdate,
+    },
+    UpdateGatewayConfigOnBehalf {
+        new_config: GatewayConfigUpdate,
+        owner: String,
+    },

    // delegation-related:
    DelegateToMixnode {
@@ -312,6 +321,10 @@ impl ExecuteMsg {
            }
            ExecuteMsg::UnbondGateway { .. } => "unbonding gateway".into(),
            ExecuteMsg::UnbondGatewayOnBehalf { .. } => "unbonding gateway on behalf".into(),
+            ExecuteMsg::UpdateGatewayConfig { .. } => "updating gateway configuration".into(),
+            ExecuteMsg::UpdateGatewayConfigOnBehalf { .. } => {
+                "updating gateway configuration on behalf".into()
+            }
            ExecuteMsg::DelegateToMixnode { mix_id } => format!("delegating to mixnode {mix_id}"),
            ExecuteMsg::DelegateToMixnodeOnBehalf { mix_id, .. } => {
                format!("delegating to mixnode {mix_id} on behalf")
@@ -500,6 +513,11 @@ pub enum QueryMsg {
        start_after: Option<u32>,
    },
    GetNumberOfPendingEvents {},
+
+    // signing-related
+    GetSigningNonce {
+        address: String,
+    },
 }

 #[derive(Serialize, Deserialize, Clone, Debug, PartialEq, Eq, JsonSchema)]
@@ -70,7 +70,7 @@ pub struct IntervalRewardParams {

 impl IntervalRewardParams {
    pub fn to_inline_json(&self) -> String {
-        serde_json::to_string(self).unwrap_or_else(|_| "serialisation failure".into())
+        serde_json_wasm::to_string(self).unwrap_or_else(|_| "serialisation failure".into())
    }
 }

@@ -282,6 +282,6 @@ impl IntervalRewardingParamsUpdate {
    }

    pub fn to_inline_json(&self) -> String {
-        serde_json::to_string(self).unwrap_or_else(|_| "serialisation failure".into())
+        serde_json_wasm::to_string(self).unwrap_or_else(|_| "serialisation failure".into())
    }
 }
@@ -0,0 +1,151 @@
+// Copyright 2023 - Nym Technologies SA <contact@nymtech.net>
+// SPDX-License-Identifier: Apache-2.0
+
+use crate::{Gateway, MixNode, MixNodeCostParams};
+use contracts_common::signing::{
+    ContractMessageContent, MessageType, Nonce, SignableMessage, SigningPurpose,
+};
+use cosmwasm_std::{Addr, Coin};
+use serde::Serialize;
+
+pub type SignableMixNodeBondingMsg = SignableMessage<ContractMessageContent<MixnodeBondingPayload>>;
+pub type SignableGatewayBondingMsg = SignableMessage<ContractMessageContent<GatewayBondingPayload>>;
+
+#[derive(Serialize)]
+pub struct MixnodeBondingPayload {
+    mix_node: MixNode,
+    cost_params: MixNodeCostParams,
+}
+
+impl MixnodeBondingPayload {
+    pub fn new(mix_node: MixNode, cost_params: MixNodeCostParams) -> Self {
+        Self {
+            mix_node,
+            cost_params,
+        }
+    }
+}
+
+impl SigningPurpose for MixnodeBondingPayload {
+    fn message_type() -> MessageType {
+        MessageType::new("mixnode-bonding")
+    }
+}
+
+pub fn construct_mixnode_bonding_sign_payload(
+    nonce: Nonce,
+    sender: Addr,
+    proxy: Option<Addr>,
+    pledge: Coin,
+    mix_node: MixNode,
+    cost_params: MixNodeCostParams,
+) -> SignableMixNodeBondingMsg {
+    let payload = MixnodeBondingPayload::new(mix_node, cost_params);
+    let content = ContractMessageContent::new(sender, proxy, vec![pledge], payload);
+
+    SignableMessage::new(nonce, content)
+}
+
+#[derive(Serialize)]
+pub struct GatewayBondingPayload {
+    gateway: Gateway,
+}
+
+impl GatewayBondingPayload {
+    pub fn new(gateway: Gateway) -> Self {
+        Self { gateway }
+    }
+}
+
+impl SigningPurpose for GatewayBondingPayload {
+    fn message_type() -> MessageType {
+        MessageType::new("gateway-bonding")
+    }
+}
+
+pub fn construct_gateway_bonding_sign_payload(
+    nonce: Nonce,
+    sender: Addr,
+    proxy: Option<Addr>,
+    pledge: Coin,
+    gateway: Gateway,
+) -> SignableGatewayBondingMsg {
+    let payload = GatewayBondingPayload::new(gateway);
+    let content = ContractMessageContent::new(sender, proxy, vec![pledge], payload);
+
+    SignableMessage::new(nonce, content)
+}
+
+#[derive(Serialize)]
+pub struct FamilyCreationSignature {
+    label: String,
+    // TODO: add any extra fields?
+}
+
+impl FamilyCreationSignature {
+    pub fn new(label: String) -> Self {
+        Self { label }
+    }
+}
+
+impl SigningPurpose for FamilyCreationSignature {
+    fn message_type() -> MessageType {
+        MessageType::new("family-creation")
+    }
+}
+
+#[derive(Serialize)]
+pub struct FamilyJoinSignature {
+    family_head: String,
+    // TODO: add any extra fields?
+}
+
+impl FamilyJoinSignature {
+    pub fn new(family_head: String) -> Self {
+        Self { family_head }
+    }
+}
+
+impl SigningPurpose for FamilyJoinSignature {
+    fn message_type() -> MessageType {
+        MessageType::new("family-join")
+    }
+}
+
+#[derive(Serialize)]
+pub struct FamilyLeaveSignature {
+    family_head: String,
+    // TODO: add any extra fields?
+}
+
+impl FamilyLeaveSignature {
+    pub fn new(family_head: String) -> Self {
+        Self { family_head }
+    }
+}
+
+impl SigningPurpose for FamilyLeaveSignature {
+    fn message_type() -> MessageType {
+        MessageType::new("family-leave")
+    }
+}
+
+#[derive(Serialize)]
+pub struct FamilyKickSignature {
+    member: String,
+    // TODO: add any extra fields?
+}
+
+impl FamilyKickSignature {
+    pub fn new(member: String) -> Self {
+        Self { member }
+    }
+}
+
+impl SigningPurpose for FamilyKickSignature {
+    fn message_type() -> MessageType {
+        MessageType::new("family-member-removal")
+    }
+}
+
+// TODO: depending on our threat model, we should perhaps extend it to include all _on_behalf methods
@@ -6,11 +6,11 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

 [dependencies]
-cw-utils = { workspace = true }
-cw3 = { workspace = true }
-cw3-fixed-multisig = { workspace = true, features = ["library"] }
-cw4 = { workspace= true }
-cosmwasm-std = { workspace = true }
+cw-utils = { version = "0.13.4" }
+cw3 = { version = "0.13.4" }
+cw3-fixed-multisig = { version = "0.13.4", features = ["library"] }
+cw4 = { version = "0.13.4" }
+cosmwasm-std = "1.0.0"
 schemars = "0.8"
 serde = { version = "1.0.103", default-features = false, features = ["derive"] }
 thiserror = { version = "1.0.23" }
@@ -1,6 +1,6 @@
 [package]
 name = "nym-vesting-contract-common"
-version = "0.3.0"
+version = "0.2.0"
 description = "Common library for the Nym vesting contract"
 edition = { workspace = true }
 authors = { workspace = true }
@@ -8,9 +8,9 @@ license = { workspace = true }
 repository = { workspace = true }

 [dependencies]
-cosmwasm-std = { workspace = true }
-mixnet-contract-common = { path = "../mixnet-contract", package = "nym-mixnet-contract-common", version = "0.3.0" }
-contracts-common = { path = "../contracts-common", package = "nym-contracts-common", version = "0.3.0" }
+cosmwasm-std = "1.0.0"
+mixnet-contract-common = { path = "../mixnet-contract", package = "nym-mixnet-contract-common", version = "0.2.0" }
+contracts-common = { path = "../contracts-common", package = "nym-contracts-common", version = "0.2.0" }
 serde = { version = "1.0", features = ["derive"] }
 schemars = "0.8"
 ts-rs = {version = "6.1.2", optional = true}
@@ -17,6 +17,7 @@ pub const VESTING_MIXNODE_BONDING_EVENT_TYPE: &str = "vesting_mixnode_bonding";
 pub const VESTING_PLEDGE_MORE_EVENT_TYPE: &str = "vesting_pledge_more";
 pub const VESTING_MIXNODE_UNBONDING_EVENT_TYPE: &str = "vesting_mixnode_unbonding";
 pub const VESTING_UPDATE_MIXNODE_CONFIG_EVENT_TYPE: &str = "vesting_update_mixnode_config";
+pub const VESTING_UPDATE_GATEWAY_CONFIG_EVENT_TYPE: &str = "vesting_update_gateway_config";
 pub const VESTING_UPDATE_MIXNODE_COST_PARAMS_EVENT_TYPE: &str =
    "vesting_update_mixnode_cost_params";

@@ -121,6 +122,10 @@ pub fn new_vesting_update_mixnode_config_event() -> Event {
    Event::new(VESTING_UPDATE_MIXNODE_CONFIG_EVENT_TYPE)
 }

+pub fn new_vesting_update_gateway_config_event() -> Event {
+    Event::new(VESTING_UPDATE_GATEWAY_CONFIG_EVENT_TYPE)
+}
+
 pub fn new_vesting_update_mixnode_cost_params_event() -> Event {
    Event::new(VESTING_UPDATE_MIXNODE_COST_PARAMS_EVENT_TYPE)
 }
@@ -1,5 +1,7 @@
+use contracts_common::signing::MessageSignature;
 use cosmwasm_std::{Coin, Timestamp};
 use mixnet_contract_common::{
+    gateway::GatewayConfigUpdate,
    mixnode::{MixNodeConfigUpdate, MixNodeCostParams},
    Gateway, IdentityKey, MixId, MixNode,
 };
@@ -118,7 +120,7 @@ pub enum ExecuteMsg {
    BondMixnode {
        mix_node: MixNode,
        cost_params: MixNodeCostParams,
-        owner_signature: String,
+        owner_signature: MessageSignature,
        amount: Coin,
    },
    PledgeMore {
@@ -131,7 +133,7 @@ pub enum ExecuteMsg {
    },
    BondGateway {
        gateway: Gateway,
-        owner_signature: String,
+        owner_signature: MessageSignature,
        amount: Coin,
    },
    UnbondGateway {},
@@ -139,6 +141,9 @@ pub enum ExecuteMsg {
        owner: String,
        amount: Coin,
    },
+    UpdateGatewayConfig {
+        new_config: GatewayConfigUpdate,
+    },
    TransferOwnership {
        to_address: String,
    },
@@ -178,6 +183,7 @@ impl ExecuteMsg {
            ExecuteMsg::BondGateway { .. } => "VestingExecuteMsg::BondGateway",
            ExecuteMsg::UnbondGateway { .. } => "VestingExecuteMsg::UnbondGateway",
            ExecuteMsg::TrackUnbondGateway { .. } => "VestingExecuteMsg::TrackUnbondGateway",
+            ExecuteMsg::UpdateGatewayConfig { .. } => "VestingExecuteMsg::UpdateGatewayConfig",
            ExecuteMsg::TransferOwnership { .. } => "VestingExecuteMsg::TransferOwnership",
            ExecuteMsg::UpdateStakingAddress { .. } => "VestingExecuteMsg::UpdateStakingAddress",
            ExecuteMsg::UpdateLockedPledgeCap { .. } => "VestingExecuteMsg::UpdateLockedPledgeCap",
@@ -19,7 +19,7 @@ thiserror = "1.0"
 url = "2.2"
 ts-rs = "6.1.2"

-cosmwasm-std = { workspace = true }
+cosmwasm-std = "1.0.0"
 cosmrs = { git = "https://github.com/neacsu/cosmos-rust", branch = "neacsu/feegrant_support" }

 validator-client = { path = "../../common/client-libs/validator-client", features = [
@@ -81,7 +81,6 @@ impl GatewayBond {
 pub struct GatewayNodeDetailsResponse {
    pub identity_key: String,
    pub sphinx_key: String,
-    pub owner_signature: String,
    pub announce_address: String,
    pub bind_address: String,
    pub version: String,
@@ -94,7 +93,6 @@ impl fmt::Display for GatewayNodeDetailsResponse {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        writeln!(f, "Identity Key: {}", self.identity_key)?;
        writeln!(f, "Sphinx Key: {}", self.sphinx_key)?;
-        writeln!(f, "Owner Signature: {}", self.owner_signature)?;
        writeln!(
            f,
            "Host: {} (bind address: {})",
@@ -167,7 +167,6 @@ impl MixNodeCostParams {
 pub struct MixnodeNodeDetailsResponse {
    pub identity_key: String,
    pub sphinx_key: String,
-    pub owner_signature: String,
    pub announce_address: String,
    pub bind_address: String,
    pub version: String,
@@ -182,7 +181,6 @@ impl fmt::Display for MixnodeNodeDetailsResponse {
        let wallet_address = self.wallet_address.clone().unwrap_or_default();
        writeln!(f, "Identity Key: {}", self.identity_key)?;
        writeln!(f, "Sphinx Key: {}", self.sphinx_key)?;
-        writeln!(f, "Owner Signature: {}", self.owner_signature)?;
        writeln!(
            f,
            "Host: {} (bind address: {})",
@@ -27,18 +27,3 @@ codegen-units = 1
 panic = 'abort'
 incremental = false
 overflow-checks = true
-
-[workspace.dependencies]
-cosmwasm-crypto = "=1.0.0"
-cosmwasm-derive = "=1.0.0"
-cosmwasm-schema = "=1.0.0"
-cosmwasm-std = "=1.0.0"
-cosmwasm-storage = "=1.0.0"
-cw-controllers = "=0.13.4"
-cw-multi-test = "=0.13.4"
-cw-storage-plus = "=0.13.4"
-cw-utils = "=0.13.4"
-cw2 = "=0.13.4"
-cw3 = "=0.13.4"
-cw3-fixed-multisig = "=0.13.4"
-cw4 = "=0.13.4"
@@ -9,14 +9,13 @@ edition = "2021"
 crate-type = ["cdylib", "rlib"]

 [dependencies]
-nym-bandwidth-claim-contract = { path = "../../common/bandwidth-claim-contract" }
 nym-coconut-bandwidth-contract-common = { path = "../../common/cosmwasm-smart-contracts/coconut-bandwidth-contract" }
 nym-multisig-contract-common = { path = "../../common/cosmwasm-smart-contracts/multisig-contract" }

-cosmwasm-std = { workspace = true }
-cosmwasm-storage = { workspace = true }
-cw-storage-plus = { workspace = true }
-cw-controllers = { workspace = true }
+cosmwasm-std = "1.0.0"
+cosmwasm-storage = "1.0.0"
+cw-storage-plus = "0.13.4"
+cw-controllers = "0.13.4"

 schemars = "0.8"
 serde = { version = "1.0.103", default-features = false, features = ["derive"] }
@@ -11,18 +11,18 @@ crate-type = ["cdylib", "rlib"]
 [dependencies]
 nym-coconut-dkg-common = { path = "../../common/cosmwasm-smart-contracts/coconut-dkg" }

-cosmwasm-std = { workspace = true }
-cosmwasm-storage = { workspace = true }
-cw-storage-plus = { workspace = true }
-cw-controllers = { workspace = true }
-cw4 = { workspace = true }
+cosmwasm-std = "1.0.0"
+cosmwasm-storage = "1.0.0"
+cw-storage-plus = "0.13.4"
+cw-controllers = "0.13.4"
+cw4 = { version = "0.13.4" }

 schemars = "0.8"
 serde = { version = "1.0.103", default-features = false, features = ["derive"] }
 thiserror = "1.0.23"

 [dev-dependencies]
-cw-multi-test = { workspace = true }
+cw-multi-test = { version = "0.13.4" }
 cw4-group = { path = "../multisig/cw4-group" }
 nym-group-contract-common = { path = "../../common/cosmwasm-smart-contracts/group-contract" }
 lazy_static = "1.4"
@@ -22,7 +22,7 @@ fn verify_dealer(deps: DepsMut<'_>, dealer: &Addr, resharing: bool) -> Result<()
    let state = STATE.load(deps.storage)?;

    let height = if resharing {
-        INITIAL_REPLACEMENT_DATA.load(deps.storage)?.initial_height
+        Some(INITIAL_REPLACEMENT_DATA.load(deps.storage)?.initial_height)
    } else {
        None
    };
@@ -105,7 +105,7 @@ pub(crate) mod tests {
                    deps.as_mut().storage,
                    &InitialReplacementData {
                        initial_dealers: vec![details1.address, details2.address, details3.address],
-                        initial_height: Some(1),
+                        initial_height: 1,
                    },
                )
                .unwrap();
@@ -126,7 +126,7 @@ pub(crate) mod tests {

            INITIAL_REPLACEMENT_DATA
                .update::<_, ContractError>(deps.as_mut().storage, |mut data| {
-                    data.initial_height = Some(2);
+                    data.initial_height = 2;
                    Ok(data)
                })
                .unwrap();
@@ -110,7 +110,7 @@ pub(crate) mod tests {
                deps.as_mut().storage,
                &InitialReplacementData {
                    initial_dealers: vec![],
-                    initial_height: None,
+                    initial_height: 1,
                },
            )
            .unwrap();
@@ -7,6 +7,7 @@ use crate::epoch_state::storage::{CURRENT_EPOCH, INITIAL_REPLACEMENT_DATA, THRES
 use crate::epoch_state::utils::check_epoch_state;
 use crate::error::ContractError;
 use crate::state::STATE;
+use crate::verification_key_shares::storage::verified_dealers;
 use cosmwasm_std::{Addr, Deps, DepsMut, Env, Order, Response, Storage};
 use nym_coconut_dkg_common::types::{Epoch, EpochState, InitialReplacementData};

@@ -19,7 +20,13 @@ fn reset_epoch_state(storage: &mut dyn Storage) -> Result<(), ContractError> {
    for dealer_addr in dealers {
        let details = current_dealers().load(storage, &dealer_addr)?;
        for dealings in DEALINGS_BYTES {
-            dealings.remove(storage, &details.address);
+            let dealing_keys: Vec<_> = dealings
+                .keys(storage, None, None, Order::Ascending)
+                .flatten()
+                .collect();
+            for key in dealing_keys {
+                dealings.remove(storage, &key);
+            }
        }
        current_dealers().remove(storage, &dealer_addr)?;
        past_dealers().save(storage, &dealer_addr, &details)?;
@@ -46,15 +53,9 @@ fn dealers_still_active(
 }

 fn dealers_eq_members(deps: &DepsMut<'_>) -> Result<bool, ContractError> {
-    let dealers_still_active = dealers_still_active(
-        &deps.as_ref(),
-        current_dealers()
-            .keys(deps.storage, None, None, Order::Ascending)
-            .flatten(),
-    )?;
-    let all_dealers = current_dealers()
-        .keys(deps.storage, None, None, Order::Ascending)
-        .count();
+    let verified_dealers = verified_dealers(deps.storage)?;
+    let all_dealers = verified_dealers.len();
+    let dealers_still_active = dealers_still_active(&deps.as_ref(), verified_dealers.into_iter())?;
    let group_members = STATE
        .load(deps.storage)?
        .group_addr
@@ -66,7 +67,11 @@ fn dealers_eq_members(deps: &DepsMut<'_>) -> Result<bool, ContractError> {

 fn replacement_threshold_surpassed(deps: &DepsMut<'_>) -> Result<bool, ContractError> {
    let threshold = THRESHOLD.load(deps.storage)? as usize;
-    let initial_dealers = INITIAL_REPLACEMENT_DATA.load(deps.storage)?.initial_dealers;
+    let initial_dealers = verified_dealers(deps.storage)?;
+    if initial_dealers.is_empty() {
+        // possibly failed DKG, just reset and start again
+        return Ok(true);
+    }
    let initial_dealer_count = initial_dealers.len();
    let replacement_threshold = threshold - (initial_dealers.len() + 2 - 1) / 2 + 1;
    let removed_dealer_count =
@@ -90,24 +95,23 @@ pub(crate) fn advance_epoch_state(deps: DepsMut<'_>, env: Env) -> Result<Respons
    let next_epoch = if let Some(state) = current_epoch.state.next() {
        // We are during DKG process
        let mut new_state = state;
-        if let EpochState::DealingExchange { resharing } = state {
+        if let EpochState::DealingExchange { .. } = state {
            let current_dealers = current_dealers()
                .keys(deps.storage, None, None, Order::Ascending)
                .collect::<Result<Vec<Addr>, _>>()?;
-            if current_dealers.is_empty() {
-                // If no dealer registered yet, we just stay in the same state until there's at least one
+            let group_members =
+                STATE
+                    .load(deps.storage)?
+                    .group_addr
+                    .list_members(&deps.querier, None, None)?;
+            if current_dealers.len() < group_members.len() {
+                // If not all group members registered yet, we just stay in the same state until
+                // they either register or they get kicked out of the group
                new_state = current_epoch.state;
            } else {
                // note: ceiling in integer division can be achieved via q = (x + y - 1) / y;
                let threshold = (2 * current_dealers.len() as u64 + 3 - 1) / 3;
                THRESHOLD.save(deps.storage, &threshold)?;
-                if !resharing {
-                    let replacement_data = InitialReplacementData {
-                        initial_dealers: current_dealers,
-                        initial_height: None,
-                    };
-                    INITIAL_REPLACEMENT_DATA.save(deps.storage, &replacement_data)?;
-                }
            }
        };
        Epoch::new(
@@ -129,13 +133,23 @@ pub(crate) fn advance_epoch_state(deps: DepsMut<'_>, env: Env) -> Result<Respons
        // Dealer set changed, we need to redo DKG...
        let state = if replacement_threshold_surpassed(&deps)? {
            // ... in reset mode
+            INITIAL_REPLACEMENT_DATA.remove(deps.storage);
            EpochState::default()
        } else {
            // ... in reshare mode
-            INITIAL_REPLACEMENT_DATA.update::<_, ContractError>(deps.storage, |mut data| {
-                data.initial_height = Some(env.block.height);
-                Ok(data)
-            })?;
+            if INITIAL_REPLACEMENT_DATA.may_load(deps.storage)?.is_some() {
+                INITIAL_REPLACEMENT_DATA.update::<_, ContractError>(deps.storage, |mut data| {
+                    data.initial_height = env.block.height;
+                    Ok(data)
+                })?;
+            } else {
+                let replacement_data = InitialReplacementData {
+                    initial_dealers: verified_dealers(deps.storage)?,
+                    initial_height: env.block.height,
+                };
+                INITIAL_REPLACEMENT_DATA.save(deps.storage, &replacement_data)?;
+            }
+
            EpochState::PublicKeySubmission { resharing: true }
        };
        reset_epoch_state(deps.storage)?;
@@ -158,10 +172,8 @@ pub(crate) fn try_surpassed_threshold(
    check_epoch_state(deps.storage, EpochState::InProgress)?;

    let threshold = THRESHOLD.load(deps.storage)?;
-    let dealers = current_dealers()
-        .keys(deps.storage, None, None, Order::Ascending)
-        .flatten();
-    if dealers_still_active(&deps.as_ref(), dealers)? < threshold as usize {
+    let dealers = verified_dealers(deps.storage)?;
+    if dealers_still_active(&deps.as_ref(), dealers.into_iter())? < threshold as usize {
        reset_epoch_state(deps.storage)?;
        CURRENT_EPOCH.update::<_, ContractError>(deps.storage, |epoch| {
            Ok(Epoch::new(
@@ -180,8 +192,9 @@ pub(crate) fn try_surpassed_threshold(
 pub(crate) mod tests {
    use super::*;
    use crate::error::ContractError::EarlyEpochStateAdvancement;
-    use crate::support::tests::fixtures::dealer_details_fixture;
+    use crate::support::tests::fixtures::{dealer_details_fixture, vk_share_fixture};
    use crate::support::tests::helpers::{init_contract, GROUP_MEMBERS};
+    use crate::verification_key_shares::storage::vk_shares;
    use cosmwasm_std::testing::mock_env;
    use cosmwasm_std::Addr;
    use cw4::Member;
@@ -204,11 +217,15 @@ pub(crate) mod tests {

            for n in [10, 25, 50, 100] {
                let dealers: Vec<_> = (0..n).map(dealer_details_fixture).collect();
+                let shares: Vec<_> = (0..n).map(|idx| vk_share_fixture(&format!("owner{}", idx), 0)).collect();
                let initial_dealers = dealers.iter().map(|d| d.address.clone()).collect();
                let data = InitialReplacementData {
                    initial_dealers,
-                    initial_height: None,
+                    initial_height: 1,
                };
+                for share in shares {
+                    vk_shares().save(deps.as_mut().storage, (&share.owner, 0), &share).unwrap();
+                }
                for f in [two_thirds, three_fourths, ninty_pc] {
                    let threshold = f(n);
                    THRESHOLD.save(deps.as_mut().storage, &threshold).unwrap();
@@ -247,39 +264,39 @@ pub(crate) mod tests {

            assert!(dealers_eq_members(&deps.as_mut()).unwrap());

-            let details = dealer_details_fixture(1);
-            let different_details = dealer_details_fixture(2);
-            current_dealers()
-                .save(deps.as_mut().storage, &details.address, &details)
+            let share = vk_share_fixture("owner2", 0);
+            let different_share = vk_share_fixture("owner4", 0);
+            vk_shares()
+                .save(deps.as_mut().storage, (&share.owner, 0), &share)
                .unwrap();
            assert!(!dealers_eq_members(&deps.as_mut()).unwrap());

-            current_dealers()
-                .remove(deps.as_mut().storage, &details.address)
+            vk_shares()
+                .remove(deps.as_mut().storage, (&share.owner, 0))
                .unwrap();
            GROUP_MEMBERS.lock().unwrap().push((
                Member {
-                    addr: "owner1".to_string(),
+                    addr: "owner2".to_string(),
                    weight: 10,
                },
                1,
            ));
            assert!(!dealers_eq_members(&deps.as_mut()).unwrap());

-            current_dealers()
+            vk_shares()
                .save(
                    deps.as_mut().storage,
-                    &different_details.address,
-                    &different_details,
+                    (&different_share.owner, 0),
+                    &different_share,
                )
                .unwrap();
            assert!(!dealers_eq_members(&deps.as_mut()).unwrap());

-            current_dealers()
-                .remove(deps.as_mut().storage, &different_details.address)
+            vk_shares()
+                .remove(deps.as_mut().storage, (&different_share.owner, 0))
                .unwrap();
-            current_dealers()
-                .save(deps.as_mut().storage, &details.address, &details)
+            vk_shares()
+                .save(deps.as_mut().storage, (&share.owner, 0), &share)
                .unwrap();
            assert!(dealers_eq_members(&deps.as_mut()).unwrap());
        }
@@ -407,6 +424,12 @@ pub(crate) mod tests {
            );

            // setup dealer details
+            let all_shares: [_; 4] = std::array::from_fn(|i| vk_share_fixture(&format!("owner{}", i + 1), 0));
+            for share in all_shares.iter() {
+                vk_shares()
+                    .save(deps.as_mut().storage, (&share.owner, 0), share)
+                    .unwrap();
+            }
            let all_details: [_; 4] = std::array::from_fn(|i| dealer_details_fixture(i as u64 + 1));
            for details in all_details.iter() {
                current_dealers()
@@ -431,12 +454,6 @@ pub(crate) mod tests {
                    .time
                    .plus_seconds(epoch.time_configuration.dealing_exchange_time_secs)
            );
-            let replacement_data = INITIAL_REPLACEMENT_DATA.load(&deps.storage).unwrap();
-            let expected_replacement_data = InitialReplacementData {
-                initial_dealers: all_details.iter().map(|d| d.address.clone()).collect(),
-                initial_height: None,
-            };
-            assert_eq!(replacement_data, expected_replacement_data);

            env.block.time = env
                .block
@@ -588,8 +605,14 @@ pub(crate) mod tests {
            );
            assert_eq!(curr_epoch, expected_epoch);
            assert!(THRESHOLD.may_load(&deps.storage).unwrap().is_none());
+            let replacement_data = INITIAL_REPLACEMENT_DATA.load(&deps.storage).unwrap();
+            let expected_replacement_data = InitialReplacementData {
+                initial_dealers: all_details.iter().map(|d| d.address.clone()).collect(),
+                initial_height: 12345,
+            };
+            assert_eq!(replacement_data, expected_replacement_data);

-            let all_details: [_; 2] = std::array::from_fn(|i| dealer_details_fixture(i as u64 + 2));
+            let all_details: [_; 4] = std::array::from_fn(|i| dealer_details_fixture(i as u64 + 2));
            for details in all_details.iter() {
                past_dealers().remove(deps.as_mut().storage, &details.address).unwrap();
                current_dealers()
@@ -607,6 +630,17 @@ pub(crate) mod tests {
                advance_epoch_state(deps.as_mut(), env.clone()).unwrap();
            }

+            let all_shares: [_; 4] = std::array::from_fn(|i| {
+                let mut share = vk_share_fixture(&format!("owner{}", i + 1), 1);
+                share.verified = i % 2 == 0;
+                share
+                });
+            for share in all_shares.iter() {
+                vk_shares()
+                    .save(deps.as_mut().storage, (&share.owner, 0), share)
+                    .unwrap();
+            }
+
            // Group changed even more, surpassing threshold, so re-run dkg in reset mode
            *GROUP_MEMBERS.lock().unwrap().last_mut().unwrap() = (
                Member {
@@ -623,7 +657,7 @@ pub(crate) mod tests {
            advance_epoch_state(deps.as_mut(), env.clone()).unwrap();
            let curr_epoch = CURRENT_EPOCH.load(deps.as_mut().storage).unwrap();
            let expected_epoch = Epoch::new(
-                EpochState::PublicKeySubmission { resharing: false },
+                EpochState::PublicKeySubmission { resharing: true },
                prev_epoch.epoch_id + 1,
                prev_epoch.time_configuration,
                env.block.time,
@@ -672,12 +706,25 @@ pub(crate) mod tests {
                }
            );

+
+            let all_shares: [_; 3] = std::array::from_fn(|i| vk_share_fixture(&format!("owner{}", i + 1), 0));
+            for share in all_shares.iter() {
+                vk_shares()
+                    .save(deps.as_mut().storage, (&share.owner, 0), share)
+                    .unwrap();
+            }
            let all_details: [_; 3] = std::array::from_fn(|i| dealer_details_fixture(i as u64 + 1));
            for details in all_details.iter() {
                current_dealers()
                    .save(deps.as_mut().storage, &details.address, details)
                    .unwrap();
            }
+            let all_shares: [_; 3] = std::array::from_fn(|i| vk_share_fixture(&format!("owner{}", i + 1), 0));
+            for share in all_shares.iter() {
+                vk_shares()
+                    .save(deps.as_mut().storage, (&share.owner, share.epoch_id), share)
+                    .unwrap();
+            }

            for times in [
                time_configuration.public_key_submission_time_secs,
@@ -4,7 +4,9 @@
 // SPDX-License-Identifier: Apache-2.0

 use crate::constants::{VK_SHARES_EPOCH_ID_IDX_NAMESPACE, VK_SHARES_PK_NAMESPACE};
-use cosmwasm_std::Addr;
+use crate::epoch_state::storage::CURRENT_EPOCH;
+use crate::error::ContractError;
+use cosmwasm_std::{Addr, Order, Storage};
 use cw_storage_plus::{Index, IndexList, IndexedMap, MultiIndex};
 use nym_coconut_dkg_common::types::EpochId;
 use nym_coconut_dkg_common::verification_key::ContractVKShare;
@@ -35,3 +37,21 @@ pub(crate) fn vk_shares<'a>() -> IndexedMap<'a, VKShareKey<'a>, ContractVKShare,
    };
    IndexedMap::new(VK_SHARES_PK_NAMESPACE, indexes)
 }
+
+pub(crate) fn verified_dealers(storage: &dyn Storage) -> Result<Vec<Addr>, ContractError> {
+    let epoch_id = CURRENT_EPOCH.load(storage)?.epoch_id;
+    Ok(vk_shares()
+        .idx
+        .epoch_id
+        .prefix(epoch_id)
+        .range(storage, None, None, Order::Ascending)
+        .flatten()
+        .filter_map(|(_, share)| {
+            if share.verified {
+                Some(share.owner)
+            } else {
+                None
+            }
+        })
+        .collect())
+}
@@ -7,19 +7,18 @@ publish = false
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

 [dependencies]
-nym-bandwidth-claim-contract = { path = "../../common/bandwidth-claim-contract" }
 nym-coconut-bandwidth-contract-common = { path = "../../common/cosmwasm-smart-contracts/coconut-bandwidth-contract" }
 nym-coconut-dkg-common = { path = "../../common/cosmwasm-smart-contracts/coconut-dkg" }
 nym-multisig-contract-common = { path = "../../common/cosmwasm-smart-contracts/multisig-contract" }
 nym-group-contract-common = { path = "../../common/cosmwasm-smart-contracts/group-contract" }

-cosmwasm-std = { workspace = true }
-cosmwasm-storage = { workspace = true }
-cw3 = { workspace = true }
-cw4 = { workspace = true }
-cw-storage-plus = { workspace = true }
-cw-controllers = { workspace = true }
-cw-utils = { workspace = true }
+cosmwasm-std = "1.0.0"
+cosmwasm-storage = "1.0.0"
+cw3 = "0.13.4"
+cw4 = "0.13.4"
+cw-storage-plus = "0.13.4"
+cw-controllers = "0.13.4"
+cw-utils = "0.13.4"

 schemars = "0.8"
 serde = { version = "1.0.103", default-features = false, features = ["derive"] }
@@ -27,7 +26,7 @@ thiserror = "1.0.23"

 nym-coconut-bandwidth = { path = "../coconut-bandwidth" }
 nym-coconut-dkg = { path = "../coconut-dkg" }
-cw-multi-test = { workspace = true }
+cw-multi-test = { version = "0.13.4" }
 cw3-flex-multisig = { path = "../multisig/cw3-flex-multisig" }
 cw4-group = { path = "../multisig/cw4-group" }

@@ -1,6 +1,6 @@
 [package]
 name = "nym-mixnet-contract"
-version = "1.2.0"
+version = "1.2.0-pre.0"
 description = "Nym mixnet contract"
 edition = { workspace = true }
 authors = { workspace = true }
@@ -22,15 +22,14 @@ name = "mixnet_contract"
 crate-type = ["cdylib", "rlib"]

 [dependencies]
-mixnet-contract-common = { path = "../../common/cosmwasm-smart-contracts/mixnet-contract", package = "nym-mixnet-contract-common", version = "0.3.0" }
-vesting-contract-common = { path = "../../common/cosmwasm-smart-contracts/vesting-contract", package = "nym-vesting-contract-common", version = "0.3.0" }
-#nym-config = { path = "../../common/config"}
+mixnet-contract-common = { path = "../../common/cosmwasm-smart-contracts/mixnet-contract", package = "nym-mixnet-contract-common", version = "0.2.0" }
+vesting-contract-common = { path = "../../common/cosmwasm-smart-contracts/vesting-contract", package = "nym-vesting-contract-common", version = "0.2.0" }
+nym-contracts-common = { path = "../../common/cosmwasm-smart-contracts/contracts-common", version = "0.2.0" }

-cosmwasm-std = { workspace = true }
-cosmwasm-storage = { workspace = true }
-cosmwasm-derive = { workspace = true }
-cw2 = { workspace = true }
-cw-storage-plus = { workspace = true }
+cosmwasm-std = "1.0.0"
+cosmwasm-storage = "1.0.0"
+cw2 = { version = "0.13.4" }
+cw-storage-plus = "0.13.4"

 bs58 = "0.4.0"
 schemars = "0.8"
@@ -40,9 +39,8 @@ time = { version = "0.3", features = ["macros"] }
 semver = { version = "1.0.16", default-features = false }

 [dev-dependencies]
-cosmwasm-schema = { workspace = true }
+cosmwasm-schema = "1.0.0"
 rand_chacha = "0.2"
-#rand = "0.7"
 nym-crypto = { path = "../../common/crypto", features = ["asymmetric", "rand"] }

 [build-dependencies]
@@ -39,41 +39,43 @@ pub const FAMILIES_DEFAULT_RETRIEVAL_LIMIT: u32 = 10;
 pub const FAMILIES_MAX_RETRIEVAL_LIMIT: u32 = 20;

 // storage keys
-pub(crate) const DELEGATION_PK_NAMESPACE: &str = "dl";
-pub(crate) const DELEGATION_OWNER_IDX_NAMESPACE: &str = "dlo";
-pub(crate) const DELEGATION_MIXNODE_IDX_NAMESPACE: &str = "dlm";
+pub const DELEGATION_PK_NAMESPACE: &str = "dl";
+pub const DELEGATION_OWNER_IDX_NAMESPACE: &str = "dlo";
+pub const DELEGATION_MIXNODE_IDX_NAMESPACE: &str = "dlm";

-pub(crate) const GATEWAYS_PK_NAMESPACE: &str = "gt";
-pub(crate) const GATEWAYS_OWNER_IDX_NAMESPACE: &str = "gto";
+pub const GATEWAYS_PK_NAMESPACE: &str = "gt";
+pub const GATEWAYS_OWNER_IDX_NAMESPACE: &str = "gto";

-pub(crate) const REWARDED_SET_KEY: &str = "rs";
-pub(crate) const CURRENT_EPOCH_STATUS_KEY: &str = "ces";
-pub(crate) const CURRENT_INTERVAL_KEY: &str = "ci";
-pub(crate) const EPOCH_EVENT_ID_COUNTER_KEY: &str = "eic";
-pub(crate) const INTERVAL_EVENT_ID_COUNTER_KEY: &str = "iic";
-pub(crate) const PENDING_EPOCH_EVENTS_NAMESPACE: &str = "pee";
-pub(crate) const PENDING_INTERVAL_EVENTS_NAMESPACE: &str = "pie";
+pub const REWARDED_SET_KEY: &str = "rs";
+pub const CURRENT_EPOCH_STATUS_KEY: &str = "ces";
+pub const CURRENT_INTERVAL_KEY: &str = "ci";
+pub const EPOCH_EVENT_ID_COUNTER_KEY: &str = "eic";
+pub const INTERVAL_EVENT_ID_COUNTER_KEY: &str = "iic";
+pub const PENDING_EPOCH_EVENTS_NAMESPACE: &str = "pee";
+pub const PENDING_INTERVAL_EVENTS_NAMESPACE: &str = "pie";

-pub(crate) const LAST_EPOCH_EVENT_ID_KEY: &str = "lee";
-pub(crate) const LAST_INTERVAL_EVENT_ID_KEY: &str = "lie";
+pub const LAST_EPOCH_EVENT_ID_KEY: &str = "lee";
+pub const LAST_INTERVAL_EVENT_ID_KEY: &str = "lie";

-pub(crate) const CONTRACT_STATE_KEY: &str = "state";
+pub const CONTRACT_STATE_KEY: &str = "state";

-pub(crate) const LAYER_DISTRIBUTION_KEY: &str = "layers";
-pub(crate) const NODE_ID_COUNTER_KEY: &str = "nic";
-pub(crate) const MIXNODES_PK_NAMESPACE: &str = "mnn";
-pub(crate) const MIXNODES_OWNER_IDX_NAMESPACE: &str = "mno";
-pub(crate) const MIXNODES_IDENTITY_IDX_NAMESPACE: &str = "mni";
-pub(crate) const MIXNODES_SPHINX_IDX_NAMESPACE: &str = "mns";
+pub const LAYER_DISTRIBUTION_KEY: &str = "layers";
+pub const NODE_ID_COUNTER_KEY: &str = "nic";
+pub const MIXNODES_PK_NAMESPACE: &str = "mnn";
+pub const MIXNODES_OWNER_IDX_NAMESPACE: &str = "mno";
+pub const MIXNODES_IDENTITY_IDX_NAMESPACE: &str = "mni";
+pub const MIXNODES_SPHINX_IDX_NAMESPACE: &str = "mns";

-pub(crate) const UNBONDED_MIXNODES_PK_NAMESPACE: &str = "ubm";
-pub(crate) const UNBONDED_MIXNODES_OWNER_IDX_NAMESPACE: &str = "umo";
-pub(crate) const UNBONDED_MIXNODES_IDENTITY_IDX_NAMESPACE: &str = "umi";
+pub const UNBONDED_MIXNODES_PK_NAMESPACE: &str = "ubm";
+pub const UNBONDED_MIXNODES_OWNER_IDX_NAMESPACE: &str = "umo";
+pub const UNBONDED_MIXNODES_IDENTITY_IDX_NAMESPACE: &str = "umi";

-pub(crate) const REWARDING_PARAMS_KEY: &str = "rparams";
-pub(crate) const PENDING_REWARD_POOL_KEY: &str = "prp";
-pub(crate) const MIXNODES_REWARDING_PK_NAMESPACE: &str = "mnr";
+pub const REWARDING_PARAMS_KEY: &str = "rparams";
+pub const PENDING_REWARD_POOL_KEY: &str = "prp";
+pub const MIXNODES_REWARDING_PK_NAMESPACE: &str = "mnr";

-pub(crate) const FAMILIES_INDEX_NAMESPACE: &str = "faml2";
-pub(crate) const FAMILIES_MAP_NAMESPACE: &str = "fam2";
-pub(crate) const MEMBERS_MAP_NAMESPACE: &str = "memb2";
+pub const FAMILIES_INDEX_NAMESPACE: &str = "faml2";
+pub const FAMILIES_MAP_NAMESPACE: &str = "fam2";
+pub const MEMBERS_MAP_NAMESPACE: &str = "memb2";
+
+pub const SIGNING_NONCES_NAMESPACE: &str = "sn";
@@ -318,6 +318,14 @@ pub fn execute(
        ExecuteMsg::UnbondGatewayOnBehalf { owner } => {
            crate::gateways::transactions::try_remove_gateway_on_behalf(deps, info, owner)
        }
+        ExecuteMsg::UpdateGatewayConfig { new_config } => {
+            crate::gateways::transactions::try_update_gateway_config(deps, info, new_config)
+        }
+        ExecuteMsg::UpdateGatewayConfigOnBehalf { new_config, owner } => {
+            crate::gateways::transactions::try_update_gateway_config_on_behalf(
+                deps, info, new_config, owner,
+            )
+        }

        // delegation-related:
        ExecuteMsg::DelegateToMixnode { mix_id } => {
@@ -581,6 +589,9 @@ pub fn query(
        QueryMsg::GetNumberOfPendingEvents {} => to_binary(
            &crate::interval::queries::query_number_of_pending_events(deps)?,
        ),
+        QueryMsg::GetSigningNonce { address } => to_binary(
+            &crate::signing::queries::query_current_signing_nonce(deps, address)?,
+        ),
    };

    Ok(query_res?)
@@ -305,71 +305,77 @@ mod test {
    use crate::families::queries::{get_family_by_head, get_family_by_label};
    use crate::families::storage::is_family_member;
    use crate::mixnet_contract_settings::storage::minimum_mixnode_pledge;
-    use crate::support::tests::{fixtures, test_helpers};
-    use cosmwasm_std::testing::{mock_env, mock_info};
+    use crate::support::tests::fixtures;
+    use crate::support::tests::test_helpers::TestSetup;
+    use cosmwasm_std::testing::mock_info;

    #[test]
    fn test_family_crud() {
-        let mut deps = test_helpers::init_contract();
-        let env = mock_env();
-        let mut rng = test_helpers::test_rng();
+        let mut test = TestSetup::new();
+        let env = test.env();

        let head = "alice";
        let malicious_head = "timmy";
+        let member = "bob";

-        let minimum_pledge = minimum_mixnode_pledge(deps.as_ref().storage).unwrap();
-
-        let (head_mixnode, head_sig, head_keypair) =
-            test_helpers::mixnode_with_signature(&mut rng, head);
-
-        let (malicious_mixnode, malicious_sig, _malicious_keypair) =
-            test_helpers::mixnode_with_signature(&mut rng, malicious_head);
-
+        let minimum_pledge = minimum_mixnode_pledge(test.deps().storage).unwrap();
        let cost_params = fixtures::mix_node_cost_params_fixture();

-        let member = "bob";
-        let (member_mixnode, member_sig, _) =
-            test_helpers::mixnode_with_signature(&mut rng, member);
+        let (head_mixnode, head_bond_sig, head_keypair) = test.mixnode_with_signature(head, None);
+        let (malicious_mixnode, malicious_bond_sig, malicious_keypair) =
+            test.mixnode_with_signature(malicious_head, None);
+        let (member_mixnode, member_bond_sig, member_keypair) =
+            test.mixnode_with_signature(member, None);

-        // we are informed that we didn't send enough funds
        crate::mixnodes::transactions::try_add_mixnode(
-            deps.as_mut(),
+            test.deps_mut(),
            env.clone(),
            mock_info(head, &[minimum_pledge.clone()]),
            head_mixnode.clone(),
            cost_params.clone(),
-            head_sig.clone(),
+            head_bond_sig,
        )
        .unwrap();

        crate::mixnodes::transactions::try_add_mixnode(
-            deps.as_mut(),
+            test.deps_mut(),
            env.clone(),
            mock_info(malicious_head, &[minimum_pledge.clone()]),
            malicious_mixnode,
            cost_params.clone(),
-            malicious_sig.clone(),
+            malicious_bond_sig,
        )
        .unwrap();

        crate::mixnodes::transactions::try_add_mixnode(
-            deps.as_mut(),
+            test.deps_mut(),
            env,
            mock_info(member, &[minimum_pledge]),
            member_mixnode.clone(),
            cost_params,
-            member_sig.clone(),
+            member_bond_sig,
        )
        .unwrap();

-        try_create_family(deps.as_mut(), mock_info(head, &[]), head_sig, "test").unwrap();
+        let old_style_head_sig = head_keypair.private_key().sign_text(head);
+        let old_style_malicious_head_sig =
+            malicious_keypair.private_key().sign_text(malicious_head);
+        let old_style_member_sig = member_keypair.private_key().sign_text(member);
+
+        try_create_family(
+            test.deps_mut(),
+            mock_info(head, &[]),
+            old_style_head_sig,
+            "test",
+        )
+        .unwrap();
        let family_head = FamilyHead::new(&head_mixnode.identity_key);
-        assert!(get_family(&family_head, &deps.storage).is_ok());
+        assert!(get_family(&family_head, test.deps().storage).is_ok());

        let nope = try_create_family(
-            deps.as_mut(),
+            test.deps_mut(),
            mock_info(malicious_head, &[]),
-            malicious_sig,
+            old_style_malicious_head_sig,
            "test",
        );

@@ -381,11 +387,11 @@ mod test {
            },
        }

-        let family = get_family_by_label("test", &deps.storage).unwrap();
+        let family = get_family_by_label("test", test.deps().storage).unwrap();
        assert!(family.is_some());
        assert_eq!(family.unwrap().head_identity(), family_head.identity());

-        let family = get_family_by_head(family_head.identity(), &deps.storage).unwrap();
+        let family = get_family_by_head(family_head.identity(), test.deps().storage).unwrap();
        assert_eq!(family.head_identity(), family_head.identity());

        let join_signature = head_keypair
@@ -394,41 +400,47 @@ mod test {
            .to_base58_string();

        try_join_family(
-            deps.as_mut(),
+            test.deps_mut(),
            mock_info(member, &[]),
-            Some(member_sig.clone()),
+            Some(old_style_member_sig.clone()),
            join_signature.clone(),
            head_mixnode.identity_key.clone(),
        )
        .unwrap();

-        let family = get_family(&family_head, &deps.storage).unwrap();
+        let family = get_family(&family_head, test.deps().storage).unwrap();

-        assert!(is_family_member(&deps.storage, &family, &member_mixnode.identity_key).unwrap());
+        assert!(
+            is_family_member(test.deps().storage, &family, &member_mixnode.identity_key).unwrap()
+        );

        try_leave_family(
-            deps.as_mut(),
+            test.deps_mut(),
            mock_info(member, &[]),
-            member_sig.clone(),
+            old_style_member_sig.clone(),
            head_mixnode.identity_key.clone(),
        )
        .unwrap();

-        let family = get_family(&family_head, &deps.storage).unwrap();
-        assert!(!is_family_member(&deps.storage, &family, &member_mixnode.identity_key).unwrap());
+        let family = get_family(&family_head, test.deps().storage).unwrap();
+        assert!(
+            !is_family_member(test.deps().storage, &family, &member_mixnode.identity_key).unwrap()
+        );

        try_join_family(
-            deps.as_mut(),
+            test.deps_mut(),
            mock_info(member, &[]),
-            Some(member_sig.clone()),
-            join_signature.clone(),
-            head_mixnode.identity_key.clone(),
+            Some(old_style_member_sig),
+            join_signature,
+            head_mixnode.identity_key,
        )
        .unwrap();

-        let family = get_family(&family_head, &deps.storage).unwrap();
+        let family = get_family(&family_head, test.deps().storage).unwrap();

-        assert!(is_family_member(&deps.storage, &family, &member_mixnode.identity_key).unwrap());
+        assert!(
+            is_family_member(test.deps().storage, &family, &member_mixnode.identity_key).unwrap()
+        );

        // try_head_kick_member(
        //     deps.as_mut(),
@@ -438,8 +450,8 @@ mod test {
        // )
        // .unwrap();

-        // let family = get_family(&family_head, &deps.storage).unwrap();
-        // assert!(!is_family_member(&deps.storage, &family, &member_mixnode.identity_key).unwrap());
+        // let family = get_family(&family_head, test.deps().storage).unwrap();
+        // assert!(!is_family_member(test.deps().storage, &family, &member_mixnode.identity_key).unwrap());
    }

    #[cfg(test)]
@@ -456,7 +468,7 @@ mod test {

            let head = "alice";

-            let (_, keypair) = test.add_dummy_mixnode_with_keypair(head, None);
+            let (_, keypair) = test.add_dummy_mixnode_with_proxy_and_keypair(head, None);
            let sig = keypair.private_key().sign_text(head);

            let res = try_create_family_on_behalf(
@@ -495,7 +507,7 @@ mod test {
            let new_member = "vin-diesel";

            let (_, head_keys) = test.create_dummy_mixnode_with_new_family(head, label);
-            let (_, member_keys) = test.add_dummy_mixnode_with_keypair(new_member, None);
+            let (_, member_keys) = test.add_dummy_mixnode_with_proxy_and_keypair(new_member, None);

            // TODO: those signatures are WRONG and have to be c hanged
            let join_signature = head_keys
@@ -542,7 +554,7 @@ mod test {
            let new_member = "vin-diesel";

            let (_, head_keys) = test.create_dummy_mixnode_with_new_family(head, label);
-            let (_, member_keys) = test.add_dummy_mixnode_with_keypair(new_member, None);
+            let (_, member_keys) = test.add_dummy_mixnode_with_proxy_and_keypair(new_member, None);

            // TODO: those signatures are WRONG and have to be changed
            let join_signature = head_keys
@@ -599,7 +611,7 @@ mod test {
            let new_member = "vin-diesel";

            let (_, head_keys) = test.create_dummy_mixnode_with_new_family(head, label);
-            let (_, member_keys) = test.add_dummy_mixnode_with_keypair(new_member, None);
+            let (_, member_keys) = test.add_dummy_mixnode_with_proxy_and_keypair(new_member, None);

            // TODO: those signatures are WRONG and have to be c hanged
            let join_signature = head_keys
@@ -613,7 +625,7 @@ mod test {
                test.deps_mut(),
                mock_info(vesting_contract.as_ref(), &[]),
                new_member.to_string(),
-                Some(member_sig.clone()),
+                Some(member_sig),
                join_signature,
                head_identity,
            )
@@ -0,0 +1,20 @@
+// Copyright 2023 - Nym Technologies SA <contact@nymtech.net>
+// SPDX-License-Identifier: Apache-2.0
+
+use super::storage;
+use cosmwasm_std::{Addr, Storage};
+use mixnet_contract_common::{error::MixnetContractError, GatewayBond};
+
+pub(crate) fn must_get_gateway_bond_by_owner(
+    store: &dyn Storage,
+    owner: &Addr,
+) -> Result<GatewayBond, MixnetContractError> {
+    Ok(storage::gateways()
+        .idx
+        .owner
+        .item(store, owner.clone())?
+        .ok_or(MixnetContractError::NoAssociatedGatewayBond {
+            owner: owner.clone(),
+        })?
+        .1)
+}
@@ -1,6 +1,8 @@
 // Copyright 2021 - Nym Technologies SA <contact@nymtech.net>
 // SPDX-License-Identifier: Apache-2.0

+pub mod helpers;
 pub mod queries;
+pub mod signature_helpers;
 pub mod storage;
 pub mod transactions;
@@ -62,6 +62,7 @@ pub(crate) mod tests {
    use crate::contract::execute;
    use crate::support::tests;
    use crate::support::tests::test_helpers;
+    use crate::support::tests::test_helpers::TestSetup;
    use cosmwasm_std::testing::{mock_env, mock_info};

    #[test]
@@ -73,27 +74,22 @@ pub(crate) mod tests {

    #[test]
    fn gateways_paged_retrieval_obeys_limits() {
-        let mut deps = test_helpers::init_contract();
-        let env = mock_env();
-        let mut rng = test_helpers::test_rng();
+        let mut test = TestSetup::new();
+        test.add_dummy_gateways(1000);

        let limit = 2;
-        test_helpers::add_dummy_gateways(&mut rng, deps.as_mut(), env, 1000);

-        let page1 = query_gateways_paged(deps.as_ref(), None, Option::from(limit)).unwrap();
+        let page1 = query_gateways_paged(test.deps(), None, Option::from(limit)).unwrap();
        assert_eq!(limit, page1.nodes.len() as u32);
    }

    #[test]
    fn gateways_paged_retrieval_has_default_limit() {
-        let mut deps = test_helpers::init_contract();
-        let env = mock_env();
-        let mut rng = test_helpers::test_rng();
-
-        test_helpers::add_dummy_gateways(&mut rng, deps.as_mut(), env, 1000);
+        let mut test = TestSetup::new();
+        test.add_dummy_gateways(1000);

        // query without explicitly setting a limit
-        let page1 = query_gateways_paged(deps.as_ref(), None, None).unwrap();
+        let page1 = query_gateways_paged(test.deps(), None, None).unwrap();

        assert_eq!(
            GATEWAY_BOND_DEFAULT_RETRIEVAL_LIMIT,
@@ -103,15 +99,12 @@ pub(crate) mod tests {

    #[test]
    fn gateways_paged_retrieval_has_max_limit() {
-        let mut deps = test_helpers::init_contract();
-        let env = mock_env();
-        let mut rng = test_helpers::test_rng();
-
-        test_helpers::add_dummy_gateways(&mut rng, deps.as_mut(), env, 1000);
+        let mut test = TestSetup::new();
+        test.add_dummy_gateways(1000);

        // query with a crazily high limit in an attempt to use too many resources
        let crazy_limit = 1000 * GATEWAY_BOND_DEFAULT_RETRIEVAL_LIMIT;
-        let page1 = query_gateways_paged(deps.as_ref(), None, Option::from(crazy_limit)).unwrap();
+        let page1 = query_gateways_paged(test.deps(), None, Option::from(crazy_limit)).unwrap();

        // we default to a decent sized upper bound instead
        let expected_limit = GATEWAY_BOND_MAX_RETRIEVAL_LIMIT;
@@ -121,25 +114,27 @@ pub(crate) mod tests {
    #[test]
    fn gateway_pagination_works() {
        let mut deps = test_helpers::init_contract();
-        let _env = mock_env();
        let mut rng = test_helpers::test_rng();
+        let stake = tests::fixtures::good_gateway_pledge();

        // prepare 4 messages and identities that are sorted by the generated identities
        // (because we query them in an ascended manner)
        let mut exec_data = (0..4)
            .map(|i| {
                let sender = format!("nym-addr{}", i);
-                let (msg, identity) = tests::messages::valid_bond_gateway_msg(&mut rng, &sender);
+                let (msg, identity) = tests::messages::valid_bond_gateway_msg(
+                    &mut rng,
+                    deps.as_ref(),
+                    stake.clone(),
+                    &sender,
+                );
                (msg, (sender, identity))
            })
            .collect::<Vec<_>>();
        exec_data.sort_by(|(_, (_, id1)), (_, (_, id2))| id1.cmp(id2));
        let (messages, sender_identities): (Vec<_>, Vec<_>) = exec_data.into_iter().unzip();

-        let info = mock_info(
-            &sender_identities[0].0.clone(),
-            &tests::fixtures::good_gateway_pledge(),
-        );
+        let info = mock_info(&sender_identities[0].0.clone(), &stake);
        execute(deps.as_mut(), mock_env(), info, messages[0].clone()).unwrap();

        let per_page = 2;
@@ -200,43 +195,29 @@ pub(crate) mod tests {

    #[test]
    fn query_for_gateway_owner_works() {
-        let mut deps = test_helpers::init_contract();
-        let env = mock_env();
-        let mut rng = test_helpers::test_rng();
+        let mut test = TestSetup::new();

        // "fred" does not own a mixnode if there are no mixnodes
-        let res = query_owned_gateway(deps.as_ref(), "fred".to_string()).unwrap();
+        let res = query_owned_gateway(test.deps(), "fred".to_string()).unwrap();
        assert!(res.gateway.is_none());

-        // mixnode was added to "bob", "fred" still does not own one
-        test_helpers::add_gateway(
-            &mut rng,
-            deps.as_mut(),
-            env.clone(),
-            "bob",
-            tests::fixtures::good_gateway_pledge(),
-        );
+        // gateway was added to "bob", "fred" still does not own one
+        test.add_dummy_gateway("bob", None);

-        let res = query_owned_gateway(deps.as_ref(), "fred".to_string()).unwrap();
+        let res = query_owned_gateway(test.deps(), "fred".to_string()).unwrap();
        assert!(res.gateway.is_none());

        // "fred" now owns a gateway!
-        test_helpers::add_gateway(
-            &mut rng,
-            deps.as_mut(),
-            env,
-            "fred",
-            tests::fixtures::good_gateway_pledge(),
-        );
+        test.add_dummy_gateway("fred", None);

-        let res = query_owned_gateway(deps.as_ref(), "fred".to_string()).unwrap();
+        let res = query_owned_gateway(test.deps(), "fred".to_string()).unwrap();
        assert!(res.gateway.is_some());

        // but after unbonding it, he doesn't own one anymore
-        crate::gateways::transactions::try_remove_gateway(deps.as_mut(), mock_info("fred", &[]))
+        crate::gateways::transactions::try_remove_gateway(test.deps_mut(), mock_info("fred", &[]))
            .unwrap();

-        let res = query_owned_gateway(deps.as_ref(), "fred".to_string()).unwrap();
+        let res = query_owned_gateway(test.deps(), "fred".to_string()).unwrap();
        assert!(res.gateway.is_none());
    }
 }
@@ -0,0 +1,34 @@
+// Copyright 2023 - Nym Technologies SA <contact@nymtech.net>
+// SPDX-License-Identifier: Apache-2.0
+
+use crate::signing::storage as signing_storage;
+use cosmwasm_std::{Addr, Coin, Deps};
+use mixnet_contract_common::error::MixnetContractError;
+use mixnet_contract_common::{construct_gateway_bonding_sign_payload, Gateway};
+use nym_contracts_common::signing::MessageSignature;
+use nym_contracts_common::signing::Verifier;
+
+pub(crate) fn verify_gateway_bonding_signature(
+    deps: Deps<'_>,
+    sender: Addr,
+    proxy: Option<Addr>,
+    pledge: Coin,
+    gateway: Gateway,
+    signature: MessageSignature,
+) -> Result<(), MixnetContractError> {
+    // recover the public key
+    let mut public_key = [0u8; 32];
+    bs58::decode(&gateway.identity_key)
+        .into(&mut public_key)
+        .map_err(|err| MixnetContractError::MalformedEd25519IdentityKey(err.to_string()))?;
+
+    // reconstruct the payload
+    let nonce = signing_storage::get_signing_nonce(deps.storage, sender.clone())?;
+    let msg = construct_gateway_bonding_sign_payload(nonce, sender, proxy, pledge, gateway);
+
+    if deps.api.verify_message(msg, signature, &public_key)? {
+        Ok(())
+    } else {
+        Err(MixnetContractError::InvalidEd25519Signature)
+    }
+}
@@ -1,16 +1,22 @@
 // Copyright 2021-2022 - Nym Technologies SA <contact@nymtech.net>
 // SPDX-License-Identifier: Apache-2.0

+use super::helpers::must_get_gateway_bond_by_owner;
 use super::storage;
+use crate::gateways::signature_helpers::verify_gateway_bonding_signature;
 use crate::mixnet_contract_settings::storage as mixnet_params_storage;
+use crate::signing::storage as signing_storage;
 use crate::support::helpers::{
-    ensure_no_existing_bond, ensure_sent_by_vesting_contract, validate_node_identity_signature,
-    validate_pledge,
+    ensure_no_existing_bond, ensure_proxy_match, ensure_sent_by_vesting_contract, validate_pledge,
 };
 use cosmwasm_std::{wasm_execute, Addr, BankMsg, Coin, DepsMut, Env, MessageInfo, Response};
 use mixnet_contract_common::error::MixnetContractError;
-use mixnet_contract_common::events::{new_gateway_bonding_event, new_gateway_unbonding_event};
+use mixnet_contract_common::events::{
+    new_gateway_bonding_event, new_gateway_config_update_event, new_gateway_unbonding_event,
+};
+use mixnet_contract_common::gateway::GatewayConfigUpdate;
 use mixnet_contract_common::{Gateway, GatewayBond};
+use nym_contracts_common::signing::MessageSignature;
 use vesting_contract_common::messages::ExecuteMsg as VestingContractExecuteMsg;

 pub fn try_add_gateway(
@@ -18,7 +24,7 @@ pub fn try_add_gateway(
    env: Env,
    info: MessageInfo,
    gateway: Gateway,
-    owner_signature: String,
+    owner_signature: MessageSignature,
 ) -> Result<Response, MixnetContractError> {
    _try_add_gateway(
        deps,
@@ -37,7 +43,7 @@ pub fn try_add_gateway_on_behalf(
    info: MessageInfo,
    gateway: Gateway,
    owner: String,
-    owner_signature: String,
+    owner_signature: MessageSignature,
 ) -> Result<Response, MixnetContractError> {
    ensure_sent_by_vesting_contract(&info, deps.storage)?;

@@ -54,13 +60,15 @@ pub fn try_add_gateway_on_behalf(
    )
 }

+// TODO: perhaps also require the user to explicitly provide what it thinks is the current nonce
+// so that we could return a better error message if it doesn't match?
 pub(crate) fn _try_add_gateway(
    deps: DepsMut<'_>,
    env: Env,
    gateway: Gateway,
    pledge: Vec<Coin>,
    owner: Addr,
-    owner_signature: String,
+    owner_signature: MessageSignature,
    proxy: Option<Addr>,
 ) -> Result<Response, MixnetContractError> {
    // check if the pledge contains any funds of the appropriate denomination
@@ -82,13 +90,18 @@ pub(crate) fn _try_add_gateway(
    }

    // check if this sender actually owns the gateway by checking the signature
-    validate_node_identity_signature(
+    verify_gateway_bonding_signature(
        deps.as_ref(),
-        &owner,
-        &owner_signature,
-        &gateway.identity_key,
+        owner.clone(),
+        proxy.clone(),
+        pledge.clone(),
+        gateway.clone(),
+        owner_signature,
    )?;

+    // update the signing nonce associated with this sender so that the future signature would be made on the new value
+    signing_storage::increment_signing_nonce(deps.storage, owner.clone())?;
+
    let gateway_identity = gateway.identity_key.clone();
    let bond = GatewayBond::new(
        pledge.clone(),
@@ -180,41 +193,95 @@ pub(crate) fn _try_remove_gateway(
    )))
 }

+pub(crate) fn try_update_gateway_config(
+    deps: DepsMut<'_>,
+    info: MessageInfo,
+    new_config: GatewayConfigUpdate,
+) -> Result<Response, MixnetContractError> {
+    let owner = info.sender;
+    _try_update_gateway_config(deps, new_config, owner, None)
+}
+
+pub(crate) fn try_update_gateway_config_on_behalf(
+    deps: DepsMut,
+    info: MessageInfo,
+    new_config: GatewayConfigUpdate,
+    owner: String,
+) -> Result<Response, MixnetContractError> {
+    ensure_sent_by_vesting_contract(&info, deps.storage)?;
+
+    let owner = deps.api.addr_validate(&owner)?;
+    let proxy = info.sender;
+    _try_update_gateway_config(deps, new_config, owner, Some(proxy))
+}
+
+pub(crate) fn _try_update_gateway_config(
+    deps: DepsMut,
+    new_config: GatewayConfigUpdate,
+    owner: Addr,
+    proxy: Option<Addr>,
+) -> Result<Response, MixnetContractError> {
+    let existing_bond = must_get_gateway_bond_by_owner(deps.storage, &owner)?;
+    ensure_proxy_match(&proxy, &existing_bond.proxy)?;
+
+    let cfg_update_event = new_gateway_config_update_event(&owner, &proxy, &new_config);
+
+    let mut updated_bond = existing_bond.clone();
+    updated_bond.gateway.host = new_config.host;
+    updated_bond.gateway.mix_port = new_config.mix_port;
+    updated_bond.gateway.clients_port = new_config.clients_port;
+    updated_bond.gateway.location = new_config.location;
+    updated_bond.gateway.version = new_config.version;
+
+    storage::gateways().replace(
+        deps.storage,
+        existing_bond.identity(),
+        Some(&updated_bond),
+        Some(&existing_bond),
+    )?;
+
+    Ok(Response::new().add_event(cfg_update_event))
+}
+
 #[cfg(test)]
 pub mod tests {
+    use super::*;
    use crate::contract::execute;
+    use crate::gateways::queries;
    use crate::gateways::transactions::{
        try_add_gateway, try_add_gateway_on_behalf, try_remove_gateway_on_behalf,
+        try_update_gateway_config, try_update_gateway_config_on_behalf,
    };
    use crate::interval::pending_events;
    use crate::mixnet_contract_settings::storage::minimum_gateway_pledge;
    use crate::support::tests;
-    use crate::support::tests::fixtures::{good_gateway_pledge, TEST_COIN_DENOM};
+    use crate::support::tests::fixtures;
+    use crate::support::tests::fixtures::{good_gateway_pledge, good_mixnode_pledge};
    use crate::support::tests::test_helpers::TestSetup;
-    use crate::support::tests::{fixtures, test_helpers};
-    use cosmwasm_std::testing::{mock_env, mock_info};
-    use cosmwasm_std::{coin, Addr, BankMsg, Response, Uint128};
+    use cosmwasm_std::testing::mock_info;
+    use cosmwasm_std::{Addr, BankMsg, Response, Uint128};
    use mixnet_contract_common::error::MixnetContractError;
    use mixnet_contract_common::events::new_gateway_unbonding_event;
+    use mixnet_contract_common::gateway::GatewayConfigUpdate;
    use mixnet_contract_common::ExecuteMsg;

    #[test]
    fn gateway_add() {
-        let mut deps = test_helpers::init_contract();
-        let env = mock_env();
-        let mut rng = test_helpers::test_rng();
+        let mut test = TestSetup::new();

        // if we fail validation (by say not sending enough funds
        let sender = "alice";
-        let minimum_pledge = minimum_gateway_pledge(deps.as_ref().storage).unwrap();
+        let minimum_pledge = minimum_gateway_pledge(test.deps().storage).unwrap();
        let mut insufficient_pledge = minimum_pledge.clone();
        insufficient_pledge.amount -= Uint128::new(1000);

        let info = mock_info(sender, &[insufficient_pledge.clone()]);
-        let (gateway, sig) = test_helpers::gateway_with_signature(&mut rng, sender);
+        let (gateway, sig) =
+            test.gateway_with_signature(sender, Some(vec![insufficient_pledge.clone()]));

+        let env = test.env();
        let result = try_add_gateway(
-            deps.as_mut(),
+            test.deps_mut(),
            env.clone(),
            info,
            gateway.clone(),
@@ -233,47 +300,23 @@ pub mod tests {
        // if the signature provided is invalid, the bonding also fails
        let info = mock_info(sender, &[minimum_pledge]);

-        let result = try_add_gateway(
-            deps.as_mut(),
-            env.clone(),
-            info.clone(),
-            gateway.clone(),
-            "bad-signature".into(),
-        );
-        assert!(matches!(
-            result,
-            Err(MixnetContractError::MalformedEd25519Signature(..))
-        ));
-
        // if there was already a gateway bonded by particular user
-        test_helpers::add_gateway(
-            &mut rng,
-            deps.as_mut(),
-            env.clone(),
-            sender,
-            fixtures::good_gateway_pledge(),
-        );
+        test.add_dummy_gateway(sender, None);

        // it fails
-        let result = try_add_gateway(deps.as_mut(), env.clone(), info, gateway, sig);
+        let result = try_add_gateway(test.deps_mut(), env.clone(), info, gateway, sig);
        assert_eq!(Err(MixnetContractError::AlreadyOwnsGateway), result);

        // the same holds if the user already owns a mixnode
        let sender2 = "mixnode-owner";

-        let mix_id = test_helpers::add_mixnode(
-            &mut rng,
-            deps.as_mut(),
-            env.clone(),
-            sender2,
-            vec![coin(100_000_000, TEST_COIN_DENOM)],
-        );
+        let mix_id = test.add_dummy_mixnode(sender2, None);

        let info = mock_info(sender2, &fixtures::good_gateway_pledge());
-        let (gateway, sig) = test_helpers::gateway_with_signature(&mut rng, sender2);
+        let (gateway, sig) = test.gateway_with_signature(sender2, None);

        let result = try_add_gateway(
-            deps.as_mut(),
+            test.deps_mut(),
            env.clone(),
            info.clone(),
            gateway.clone(),
@@ -282,12 +325,84 @@ pub mod tests {
        assert_eq!(Err(MixnetContractError::AlreadyOwnsMixnode), result);

        // but after he unbonds it, it's all fine again
-        pending_events::unbond_mixnode(deps.as_mut(), &env, 123, mix_id).unwrap();
+        pending_events::unbond_mixnode(test.deps_mut(), &env, 123, mix_id).unwrap();

-        let result = try_add_gateway(deps.as_mut(), env, info, gateway, sig);
+        let result = try_add_gateway(test.deps_mut(), env, info, gateway, sig);
        assert!(result.is_ok());
    }

+    #[test]
+    fn adding_gateway_with_invalid_signatures() {
+        let mut test = TestSetup::new();
+        let env = test.env();
+
+        let sender = "alice";
+        let pledge = good_mixnode_pledge();
+        let info = mock_info(sender, pledge.as_ref());
+
+        let (gateway, signature) = test.gateway_with_signature(sender, Some(pledge.clone()));
+
+        // using different parameters than what the signature was made on
+        let mut modified_gateway = gateway.clone();
+        modified_gateway.mix_port += 1;
+        let res = try_add_gateway(
+            test.deps_mut(),
+            env.clone(),
+            info,
+            modified_gateway,
+            signature.clone(),
+        );
+        assert_eq!(res, Err(MixnetContractError::InvalidEd25519Signature));
+
+        // even stake amount is protected
+        let mut different_pledge = pledge.clone();
+        different_pledge[0].amount += Uint128::new(12345);
+
+        let info = mock_info(sender, different_pledge.as_ref());
+        let res = try_add_gateway(
+            test.deps_mut(),
+            env.clone(),
+            info.clone(),
+            gateway.clone(),
+            signature.clone(),
+        );
+        assert_eq!(res, Err(MixnetContractError::InvalidEd25519Signature));
+
+        let other_sender = mock_info("another-sender", pledge.as_ref());
+        let res = try_add_gateway(
+            test.deps_mut(),
+            env.clone(),
+            other_sender,
+            gateway.clone(),
+            signature.clone(),
+        );
+        assert_eq!(res, Err(MixnetContractError::InvalidEd25519Signature));
+
+        // trying to reuse the same signature for another bonding fails (because nonce doesn't match!)
+        let info = mock_info(sender, pledge.as_ref());
+        let current_nonce =
+            signing_storage::get_signing_nonce(test.deps().storage, Addr::unchecked(sender))
+                .unwrap();
+        assert_eq!(0, current_nonce);
+        let res = try_add_gateway(
+            test.deps_mut(),
+            env.clone(),
+            info.clone(),
+            gateway.clone(),
+            signature.clone(),
+        );
+        assert!(res.is_ok());
+        let updated_nonce =
+            signing_storage::get_signing_nonce(test.deps().storage, Addr::unchecked(sender))
+                .unwrap();
+        assert_eq!(1, updated_nonce);
+
+        _try_remove_gateway(test.deps_mut(), Addr::unchecked(sender), None).unwrap();
+
+        let res = try_add_gateway(test.deps_mut(), env, info, gateway, signature);
+        assert_eq!(res, Err(MixnetContractError::InvalidEd25519Signature));
+    }
+
    #[test]
    fn gateway_add_with_illegal_proxy() {
        let mut test = TestSetup::new();
@@ -297,7 +412,7 @@ pub mod tests {
        let vesting_contract = test.vesting_contract();

        let owner = "alice";
-        let (gateway, sig) = test_helpers::gateway_with_signature(&mut test.rng, owner);
+        let (gateway, sig) = test.gateway_with_signature(owner, None);

        let res = try_add_gateway_on_behalf(
            test.deps_mut(),
@@ -320,14 +435,13 @@ pub mod tests {

    #[test]
    fn gateway_remove() {
-        let mut deps = test_helpers::init_contract();
-        let mut rng = test_helpers::test_rng();
-        let env = mock_env();
+        let mut test = TestSetup::new();
+        let env = test.env();

        // try unbond when no nodes exist yet
        let info = mock_info("anyone", &[]);
        let msg = ExecuteMsg::UnbondGateway {};
-        let result = execute(deps.as_mut(), mock_env(), info, msg);
+        let result = execute(test.deps_mut(), env.clone(), info, msg);

        // we're told that there is no node for our address
        assert_eq!(
@@ -338,18 +452,12 @@ pub mod tests {
        );

        // let's add a node owned by bob
-        test_helpers::add_gateway(
-            &mut rng,
-            deps.as_mut(),
-            env.clone(),
-            "bob",
-            fixtures::good_gateway_pledge(),
-        );
+        test.add_dummy_gateway("bob", None);

        // attempt to unbond fred's node, which doesn't exist
        let info = mock_info("fred", &[]);
        let msg = ExecuteMsg::UnbondGateway {};
-        let result = execute(deps.as_mut(), mock_env(), info, msg);
+        let result = execute(test.deps_mut(), env.clone(), info, msg);
        assert_eq!(
            result,
            Err(MixnetContractError::NoAssociatedGatewayBond {
@@ -358,28 +466,27 @@ pub mod tests {
        );

        // bob's node is still there
-        let nodes = tests::queries::get_gateways(&mut deps);
+        let nodes = queries::query_gateways_paged(test.deps(), None, None)
+            .unwrap()
+            .nodes;
        assert_eq!(1, nodes.len());

        let first_node = &nodes[0];
        assert_eq!(&Addr::unchecked("bob"), first_node.owner());

        // add a node owned by fred
-        let fred_identity = test_helpers::add_gateway(
-            &mut rng,
-            deps.as_mut(),
-            env,
-            "fred",
-            tests::fixtures::good_gateway_pledge(),
-        );
+        let fred_identity = test.add_dummy_gateway("fred", None);

        // let's make sure we now have 2 nodes:
-        assert_eq!(2, tests::queries::get_gateways(&mut deps).len());
+        let nodes = queries::query_gateways_paged(test.deps(), None, None)
+            .unwrap()
+            .nodes;
+        assert_eq!(2, nodes.len());

        // unbond fred's node
        let info = mock_info("fred", &[]);
        let msg = ExecuteMsg::UnbondGateway {};
-        let remove_fred = execute(deps.as_mut(), mock_env(), info.clone(), msg).unwrap();
+        let remove_fred = execute(test.deps_mut(), env, info.clone(), msg).unwrap();

        // we should see a funds transfer from the contract back to fred
        let expected_message = BankMsg::Send {
@@ -401,9 +508,11 @@ pub mod tests {
        assert_eq!(expected_response, remove_fred);

        // only 1 node now exists, owned by bob:
-        let gateway_bonds = tests::queries::get_gateways(&mut deps);
-        assert_eq!(1, gateway_bonds.len());
-        assert_eq!(&Addr::unchecked("bob"), gateway_bonds[0].owner());
+        let nodes = queries::query_gateways_paged(test.deps(), None, None)
+            .unwrap()
+            .nodes;
+        assert_eq!(1, nodes.len());
+        assert_eq!(&Addr::unchecked("bob"), nodes[0].owner());
    }

    #[test]
@@ -432,4 +541,94 @@ pub mod tests {
            }
        )
    }
+
+    #[test]
+    fn update_gateway_config() {
+        let mut test = TestSetup::new();
+
+        let owner = "alice";
+        let info = mock_info(owner, &[]);
+        let update = GatewayConfigUpdate {
+            host: "1.1.1.1:1234".to_string(),
+            mix_port: 1234,
+            clients_port: 1235,
+            location: "home".to_string(),
+            version: "v1.2.3".to_string(),
+        };
+
+        // try updating a non existing gateway bond
+        let res = try_update_gateway_config(test.deps_mut(), info.clone(), update.clone());
+        assert_eq!(
+            res,
+            Err(MixnetContractError::NoAssociatedGatewayBond {
+                owner: Addr::unchecked(owner)
+            })
+        );
+
+        test.add_dummy_gateway(owner, None);
+        let vesting_contract = test.vesting_contract();
+
+        // attempted to remove on behalf with invalid proxy (current is `None`)
+        let res = try_update_gateway_config_on_behalf(
+            test.deps_mut(),
+            mock_info(vesting_contract.as_ref(), &[]),
+            update.clone(),
+            owner.to_string(),
+        );
+        assert_eq!(
+            res,
+            Err(MixnetContractError::ProxyMismatch {
+                existing: "None".to_string(),
+                incoming: vesting_contract.into_string()
+            })
+        );
+
+        // "normal" update succeeds
+        let res = try_update_gateway_config(test.deps_mut(), info, update.clone());
+        assert!(res.is_ok());
+
+        // and the config has actually been updated
+        let bond =
+            must_get_gateway_bond_by_owner(test.deps().storage, &Addr::unchecked(owner)).unwrap();
+        assert_eq!(bond.gateway.host, update.host);
+        assert_eq!(bond.gateway.mix_port, update.mix_port);
+        assert_eq!(bond.gateway.clients_port, update.clients_port);
+        assert_eq!(bond.gateway.location, update.location);
+        assert_eq!(bond.gateway.version, update.version);
+    }
+
+    #[test]
+    fn updating_gateway_config_with_illegal_proxy() {
+        let mut test = TestSetup::new();
+
+        let illegal_proxy = Addr::unchecked("not-vesting-contract");
+        let vesting_contract = test.vesting_contract();
+
+        let owner = "alice";
+
+        test.add_dummy_gateway_with_illegal_proxy(owner, None, illegal_proxy.clone());
+        let update = GatewayConfigUpdate {
+            host: "1.1.1.1:1234".to_string(),
+            mix_port: 1234,
+            clients_port: 1235,
+            location: "at home".to_string(),
+            version: "v1.2.3".to_string(),
+        };
+
+        let res = try_update_gateway_config_on_behalf(
+            test.deps_mut(),
+            mock_info(illegal_proxy.as_ref(), &[]),
+            update,
+            owner.to_string(),
+        )
+        .unwrap_err();
+
+        assert_eq!(
+            res,
+            MixnetContractError::SenderIsNotVestingContract {
+                received: illegal_proxy,
+                vesting_contract
+            }
+        )
+    }
 }
@@ -327,14 +327,6 @@ pub(crate) fn try_update_interval_config(
 ) -> Result<Response, MixnetContractError> {
    ensure_is_owner(info.sender, deps.storage)?;

-    if epochs_in_interval == 0 {
-        return Err(MixnetContractError::EpochsInIntervalZero);
-    }
-
-    if epoch_duration_secs == 0 {
-        return Err(MixnetContractError::EpochDurationZero);
-    }
-
    let interval = storage::current_interval(deps.storage)?;
    if force_immediately || interval.is_current_interval_over(&env) {
        change_interval_config(
@@ -14,6 +14,7 @@ mod mixnet_contract_settings;
 mod mixnodes;
 mod queued_migrations;
 mod rewards;
+mod signing;
 mod support;

 #[cfg(feature = "contract-testing")]
@@ -3,5 +3,6 @@

 pub mod helpers;
 pub mod queries;
+pub mod signature_helpers;
 pub mod storage;
 pub mod transactions;
@@ -273,30 +273,24 @@ pub(crate) mod tests {
    #[cfg(test)]
    mod mixnode_bonds {
        use super::*;
-        use crate::support::tests::fixtures::good_mixnode_pledge;

        #[test]
        fn obeys_limits() {
-            let mut deps = test_helpers::init_contract();
-            let env = mock_env();
-            let mut rng = test_helpers::test_rng();
+            let mut test = TestSetup::new();
+            test.add_dummy_mixnodes(1000);
            let limit = 2;

-            test_helpers::add_dummy_mixnodes(&mut rng, deps.as_mut(), env, 1000);
-            let page1 = query_mixnode_bonds_paged(deps.as_ref(), None, Some(limit)).unwrap();
+            let page1 = query_mixnode_bonds_paged(test.deps(), None, Some(limit)).unwrap();
            assert_eq!(limit, page1.nodes.len() as u32);
        }

        #[test]
        fn has_default_limit() {
-            let mut deps = test_helpers::init_contract();
-            let env = mock_env();
-            let mut rng = test_helpers::test_rng();
-
-            test_helpers::add_dummy_mixnodes(&mut rng, deps.as_mut(), env, 1000);
+            let mut test = TestSetup::new();
+            test.add_dummy_mixnodes(1000);

            // query without explicitly setting a limit
-            let page1 = query_mixnode_bonds_paged(deps.as_ref(), None, None).unwrap();
+            let page1 = query_mixnode_bonds_paged(test.deps(), None, None).unwrap();

            assert_eq!(
                MIXNODE_BOND_DEFAULT_RETRIEVAL_LIMIT,
@@ -306,14 +300,12 @@ pub(crate) mod tests {

        #[test]
        fn has_max_limit() {
-            let mut deps = test_helpers::init_contract();
-            let env = mock_env();
-            let mut rng = test_helpers::test_rng();
-            test_helpers::add_dummy_mixnodes(&mut rng, deps.as_mut(), env, 1000);
+            let mut test = TestSetup::new();
+            test.add_dummy_mixnodes(1000);

            // query with a crazily high limit in an attempt to use too many resources
            let crazy_limit = 1000;
-            let page1 = query_mixnode_bonds_paged(deps.as_ref(), None, Some(crazy_limit)).unwrap();
+            let page1 = query_mixnode_bonds_paged(test.deps(), None, Some(crazy_limit)).unwrap();

            // we default to a decent sized upper bound instead
            assert_eq!(MIXNODE_BOND_MAX_RETRIEVAL_LIMIT, page1.nodes.len() as u32);
@@ -322,63 +314,43 @@ pub(crate) mod tests {
        #[test]
        fn pagination_works() {
            // as we add mixnodes, we're always inserting them in ascending manner due to monotonically increasing id
-            let mut deps = test_helpers::init_contract();
-            let env = mock_env();
-            let mut rng = test_helpers::test_rng();
+            let mut test = TestSetup::new();

-            test_helpers::add_mixnode(
-                &mut rng,
-                deps.as_mut(),
-                env.clone(),
-                "addr1",
-                good_mixnode_pledge(),
-            );
+            test.add_dummy_mixnode("addr1", None);

            let per_page = 2;
-            let page1 = query_mixnode_bonds_paged(deps.as_ref(), None, Some(per_page)).unwrap();
+            let page1 = query_mixnode_bonds_paged(test.deps(), None, Some(per_page)).unwrap();

            // page should have 1 result on it
            assert_eq!(1, page1.nodes.len());

            // save another
-            test_helpers::add_mixnode(
-                &mut rng,
-                deps.as_mut(),
-                env.clone(),
-                "addr2",
-                good_mixnode_pledge(),
-            );
+            test.add_dummy_mixnode("addr2", None);

            // page1 should have 2 results on it
-            let page1 = query_mixnode_bonds_paged(deps.as_ref(), None, Some(per_page)).unwrap();
+            let page1 = query_mixnode_bonds_paged(test.deps(), None, Some(per_page)).unwrap();
            assert_eq!(2, page1.nodes.len());

-            test_helpers::add_mixnode(
-                &mut rng,
-                deps.as_mut(),
-                env.clone(),
-                "addr3",
-                good_mixnode_pledge(),
-            );
+            test.add_dummy_mixnode("addr3", None);

            // page1 still has the same 2 results
            let another_page1 =
-                query_mixnode_bonds_paged(deps.as_ref(), None, Some(per_page)).unwrap();
+                query_mixnode_bonds_paged(test.deps(), None, Some(per_page)).unwrap();
            assert_eq!(2, another_page1.nodes.len());
            assert_eq!(page1, another_page1);

            // retrieving the next page should start after the last key on this page
            let start_after = page1.start_next_after.unwrap();
-            let page2 = query_mixnode_bonds_paged(deps.as_ref(), Some(start_after), Some(per_page))
-                .unwrap();
+            let page2 =
+                query_mixnode_bonds_paged(test.deps(), Some(start_after), Some(per_page)).unwrap();

            assert_eq!(1, page2.nodes.len());

            // save another one
-            test_helpers::add_mixnode(&mut rng, deps.as_mut(), env, "addr4", good_mixnode_pledge());
+            test.add_dummy_mixnode("addr4", None);

-            let page2 = query_mixnode_bonds_paged(deps.as_ref(), Some(start_after), Some(per_page))
-                .unwrap();
+            let page2 =
+                query_mixnode_bonds_paged(test.deps(), Some(start_after), Some(per_page)).unwrap();

            // now we have 2 pages, with 2 results on the second page
            assert_eq!(2, page2.nodes.len());
@@ -388,29 +360,24 @@ pub(crate) mod tests {
    #[cfg(test)]
    mod mixnode_details {
        use super::*;
-        use crate::support::tests::fixtures::good_mixnode_pledge;

        #[test]
        fn obeys_limits() {
-            let mut deps = test_helpers::init_contract();
-            let env = mock_env();
-            let mut rng = test_helpers::test_rng();
+            let mut test = TestSetup::new();
+            test.add_dummy_mixnodes(1000);
            let limit = 2;

-            test_helpers::add_dummy_mixnodes(&mut rng, deps.as_mut(), env, 1000);
-            let page1 = query_mixnodes_details_paged(deps.as_ref(), None, Some(limit)).unwrap();
+            let page1 = query_mixnodes_details_paged(test.deps(), None, Some(limit)).unwrap();
            assert_eq!(limit, page1.nodes.len() as u32);
        }

        #[test]
        fn has_default_limit() {
-            let mut deps = test_helpers::init_contract();
-            let env = mock_env();
-            let mut rng = test_helpers::test_rng();
-            test_helpers::add_dummy_mixnodes(&mut rng, deps.as_mut(), env, 1000);
+            let mut test = TestSetup::new();
+            test.add_dummy_mixnodes(1000);

            // query without explicitly setting a limit
-            let page1 = query_mixnodes_details_paged(deps.as_ref(), None, None).unwrap();
+            let page1 = query_mixnodes_details_paged(test.deps(), None, None).unwrap();

            assert_eq!(
                MIXNODE_DETAILS_DEFAULT_RETRIEVAL_LIMIT,
@@ -420,15 +387,12 @@ pub(crate) mod tests {

        #[test]
        fn has_max_limit() {
-            let mut deps = test_helpers::init_contract();
-            let env = mock_env();
-            let mut rng = test_helpers::test_rng();
-            test_helpers::add_dummy_mixnodes(&mut rng, deps.as_mut(), env, 1000);
+            let mut test = TestSetup::new();
+            test.add_dummy_mixnodes(1000);

            // query with a crazily high limit in an attempt to use too many resources
            let crazy_limit = 1000;
-            let page1 =
-                query_mixnodes_details_paged(deps.as_ref(), None, Some(crazy_limit)).unwrap();
+            let page1 = query_mixnodes_details_paged(test.deps(), None, Some(crazy_limit)).unwrap();

            // we default to a decent sized upper bound instead
            assert_eq!(
@@ -440,64 +404,44 @@ pub(crate) mod tests {
        #[test]
        fn pagination_works() {
            // as we add mixnodes, we're always inserting them in ascending manner due to monotonically increasing id
-            let mut deps = test_helpers::init_contract();
-            let env = mock_env();
-            let mut rng = test_helpers::test_rng();
+            let mut test = TestSetup::new();

-            test_helpers::add_mixnode(
-                &mut rng,
-                deps.as_mut(),
-                env.clone(),
-                "addr1",
-                good_mixnode_pledge(),
-            );
+            test.add_dummy_mixnode("addr1", None);

            let per_page = 2;
-            let page1 = query_mixnodes_details_paged(deps.as_ref(), None, Some(per_page)).unwrap();
+            let page1 = query_mixnodes_details_paged(test.deps(), None, Some(per_page)).unwrap();

            // page should have 1 result on it
            assert_eq!(1, page1.nodes.len());

            // save another
-            test_helpers::add_mixnode(
-                &mut rng,
-                deps.as_mut(),
-                env.clone(),
-                "addr2",
-                good_mixnode_pledge(),
-            );
+            test.add_dummy_mixnode("addr2", None);

            // page1 should have 2 results on it
-            let page1 = query_mixnodes_details_paged(deps.as_ref(), None, Some(per_page)).unwrap();
+            let page1 = query_mixnodes_details_paged(test.deps(), None, Some(per_page)).unwrap();
            assert_eq!(2, page1.nodes.len());

-            test_helpers::add_mixnode(
-                &mut rng,
-                deps.as_mut(),
-                env.clone(),
-                "addr3",
-                good_mixnode_pledge(),
-            );
+            test.add_dummy_mixnode("addr3", None);

            // page1 still has the same 2 results
            let another_page1 =
-                query_mixnodes_details_paged(deps.as_ref(), None, Some(per_page)).unwrap();
+                query_mixnodes_details_paged(test.deps(), None, Some(per_page)).unwrap();
            assert_eq!(2, another_page1.nodes.len());
            assert_eq!(page1, another_page1);

            // retrieving the next page should start after the last key on this page
            let start_after = page1.start_next_after.unwrap();
            let page2 =
-                query_mixnodes_details_paged(deps.as_ref(), Some(start_after), Some(per_page))
+                query_mixnodes_details_paged(test.deps(), Some(start_after), Some(per_page))
                    .unwrap();

            assert_eq!(1, page2.nodes.len());

            // save another one
-            test_helpers::add_mixnode(&mut rng, deps.as_mut(), env, "addr4", good_mixnode_pledge());
+            test.add_dummy_mixnode("addr4", None);

            let page2 =
-                query_mixnodes_details_paged(deps.as_ref(), Some(start_after), Some(per_page))
+                query_mixnodes_details_paged(test.deps(), Some(start_after), Some(per_page))
                    .unwrap();

            // now we have 2 pages, with 2 results on the second page
@@ -1135,26 +1079,18 @@ pub(crate) mod tests {

    #[test]
    fn query_for_owned_mixnode() {
-        let mut deps = test_helpers::init_contract();
-        let env = mock_env();
-        let mut rng = test_helpers::test_rng();
+        let mut test = TestSetup::new();

        let address = "mix-owner".to_string();

        // when it doesnt exist
-        let res = query_owned_mixnode(deps.as_ref(), address.clone()).unwrap();
+        let res = query_owned_mixnode(test.deps(), address.clone()).unwrap();
        assert!(res.mixnode_details.is_none());
        assert_eq!(address, res.address);

        // when it [fully] exists
-        let id = test_helpers::add_mixnode(
-            &mut rng,
-            deps.as_mut(),
-            env,
-            &address,
-            good_mixnode_pledge(),
-        );
-        let res = query_owned_mixnode(deps.as_ref(), address.clone()).unwrap();
+        let id = test.add_dummy_mixnode(&address, None);
+        let res = query_owned_mixnode(test.deps(), address.clone()).unwrap();
        let details = res.mixnode_details.unwrap();
        assert_eq!(address, details.bond_information.owner);
        assert_eq!(
@@ -1171,30 +1107,27 @@ pub(crate) mod tests {
        rewarding_details.delegates = Decimal::raw(12345);
        rewarding_details.unique_delegations = 1;
        rewards_storage::MIXNODE_REWARDING
-            .save(deps.as_mut().storage, id, &rewarding_details)
+            .save(test.deps_mut().storage, id, &rewarding_details)
            .unwrap();

-        pending_events::unbond_mixnode(deps.as_mut(), &mock_env(), 123, id).unwrap();
-        let res = query_owned_mixnode(deps.as_ref(), address.clone()).unwrap();
+        pending_events::unbond_mixnode(test.deps_mut(), &mock_env(), 123, id).unwrap();
+        let res = query_owned_mixnode(test.deps(), address.clone()).unwrap();
        assert!(res.mixnode_details.is_none());
        assert_eq!(address, res.address);
    }

    #[test]
    fn query_for_mixnode_details() {
-        let mut deps = test_helpers::init_contract();
-        let env = mock_env();
-        let mut rng = test_helpers::test_rng();
+        let mut test = TestSetup::new();

        // no node under this id
-        let res = query_mixnode_details(deps.as_ref(), 42).unwrap();
+        let res = query_mixnode_details(test.deps(), 42).unwrap();
        assert!(res.mixnode_details.is_none());
        assert_eq!(42, res.mix_id);

        // it exists
-        let mix_id =
-            test_helpers::add_mixnode(&mut rng, deps.as_mut(), env, "foomp", good_mixnode_pledge());
-        let res = query_mixnode_details(deps.as_ref(), mix_id).unwrap();
+        let mix_id = test.add_dummy_mixnode("foomp", None);
+        let res = query_mixnode_details(test.deps(), mix_id).unwrap();
        let details = res.mixnode_details.unwrap();
        assert_eq!(mix_id, details.bond_information.mix_id);
        assert_eq!(
@@ -1227,18 +1160,15 @@ pub(crate) mod tests {

    #[test]
    fn query_for_mixnode_rewarding_details() {
-        let mut deps = test_helpers::init_contract();
-        let env = mock_env();
-        let mut rng = test_helpers::test_rng();
+        let mut test = TestSetup::new();

        // no node under this id
-        let res = query_mixnode_rewarding_details(deps.as_ref(), 42).unwrap();
+        let res = query_mixnode_rewarding_details(test.deps(), 42).unwrap();
        assert!(res.rewarding_details.is_none());
        assert_eq!(42, res.mix_id);

-        let mix_id =
-            test_helpers::add_mixnode(&mut rng, deps.as_mut(), env, "foomp", good_mixnode_pledge());
-        let res = query_mixnode_rewarding_details(deps.as_ref(), mix_id).unwrap();
+        let mix_id = test.add_dummy_mixnode("foomp", None);
+        let res = query_mixnode_rewarding_details(test.deps(), mix_id).unwrap();
        let details = res.rewarding_details.unwrap();
        assert_eq!(
            fixtures::mix_node_cost_params_fixture(),
@@ -1249,80 +1179,74 @@ pub(crate) mod tests {

    #[test]
    fn query_for_unbonded_mixnode() {
-        let mut deps = test_helpers::init_contract();
-        let env = mock_env();
-        let mut rng = test_helpers::test_rng();
+        let mut test = TestSetup::new();

        let sender = "mix-owner";

        // no node under this id
-        let res = query_unbonded_mixnode(deps.as_ref(), 42).unwrap();
+        let res = query_unbonded_mixnode(test.deps(), 42).unwrap();
        assert!(res.unbonded_info.is_none());
        assert_eq!(42, res.mix_id);

        // add and unbond the mixnode
-        let mix_id =
-            test_helpers::add_mixnode(&mut rng, deps.as_mut(), env, sender, good_mixnode_pledge());
-        pending_events::unbond_mixnode(deps.as_mut(), &mock_env(), 123, mix_id).unwrap();
+        let mix_id = test.add_dummy_mixnode(sender, None);
+        pending_events::unbond_mixnode(test.deps_mut(), &mock_env(), 123, mix_id).unwrap();

-        let res = query_unbonded_mixnode(deps.as_ref(), mix_id).unwrap();
+        let res = query_unbonded_mixnode(test.deps(), mix_id).unwrap();
        assert_eq!(res.unbonded_info.unwrap().owner, sender);
        assert_eq!(mix_id, res.mix_id);
    }

    #[test]
    fn query_for_stake_saturation() {
-        let mut deps = test_helpers::init_contract();
-        let env = mock_env();
-        let mut rng = test_helpers::test_rng();
+        let mut test = TestSetup::new();

        // no node under this id
-        let res = query_stake_saturation(deps.as_ref(), 42).unwrap();
+        let res = query_stake_saturation(test.deps(), 42).unwrap();
        assert!(res.current_saturation.is_none());
        assert!(res.uncapped_saturation.is_none());
        assert_eq!(42, res.mix_id);

        let rewarding_params = rewards_storage::REWARDING_PARAMS
-            .load(deps.as_ref().storage)
+            .load(test.deps().storage)
            .unwrap();
        let saturation_point = rewarding_params.interval.stake_saturation_point;

-        let mix_id =
-            test_helpers::add_mixnode(&mut rng, deps.as_mut(), env, "foomp", good_mixnode_pledge());
+        let mix_id = test.add_dummy_mixnode("foomp", None);

        // below saturation point
        // there's only the base pledge without any delegation
        let expected =
            Decimal::from_atomics(good_mixnode_pledge()[0].amount, 0).unwrap() / saturation_point;
-        let res = query_stake_saturation(deps.as_ref(), mix_id).unwrap();
+        let res = query_stake_saturation(test.deps(), mix_id).unwrap();
        assert_eq!(expected, res.current_saturation.unwrap());
        assert_eq!(expected, res.uncapped_saturation.unwrap());
        assert_eq!(mix_id, res.mix_id);

        // exactly at saturation point
        let mut mix_rewarding = rewards_storage::MIXNODE_REWARDING
-            .load(deps.as_ref().storage, mix_id)
+            .load(test.deps().storage, mix_id)
            .unwrap();
        mix_rewarding.operator = saturation_point;
        rewards_storage::MIXNODE_REWARDING
-            .save(deps.as_mut().storage, mix_id, &mix_rewarding)
+            .save(test.deps_mut().storage, mix_id, &mix_rewarding)
            .unwrap();

-        let res = query_stake_saturation(deps.as_ref(), mix_id).unwrap();
+        let res = query_stake_saturation(test.deps(), mix_id).unwrap();
        assert_eq!(Decimal::one(), res.current_saturation.unwrap());
        assert_eq!(Decimal::one(), res.uncapped_saturation.unwrap());
        assert_eq!(mix_id, res.mix_id);

        // above the saturation point
        let mut mix_rewarding = rewards_storage::MIXNODE_REWARDING
-            .load(deps.as_ref().storage, mix_id)
+            .load(test.deps().storage, mix_id)
            .unwrap();
        mix_rewarding.delegates = mix_rewarding.operator * Decimal::percent(150);
        rewards_storage::MIXNODE_REWARDING
-            .save(deps.as_mut().storage, mix_id, &mix_rewarding)
+            .save(test.deps_mut().storage, mix_id, &mix_rewarding)
            .unwrap();

-        let res = query_stake_saturation(deps.as_ref(), mix_id).unwrap();
+        let res = query_stake_saturation(test.deps(), mix_id).unwrap();
        assert_eq!(Decimal::one(), res.current_saturation.unwrap());
        assert_eq!(Decimal::percent(250), res.uncapped_saturation.unwrap());
        assert_eq!(mix_id, res.mix_id);
@@ -0,0 +1,36 @@
+// Copyright 2023 - Nym Technologies SA <contact@nymtech.net>
+// SPDX-License-Identifier: Apache-2.0
+
+use crate::signing::storage as signing_storage;
+use cosmwasm_std::{Addr, Coin, Deps};
+use mixnet_contract_common::error::MixnetContractError;
+use mixnet_contract_common::{construct_mixnode_bonding_sign_payload, MixNode, MixNodeCostParams};
+use nym_contracts_common::signing::MessageSignature;
+use nym_contracts_common::signing::Verifier;
+
+pub(crate) fn verify_mixnode_bonding_signature(
+    deps: Deps<'_>,
+    sender: Addr,
+    proxy: Option<Addr>,
+    pledge: Coin,
+    mixnode: MixNode,
+    cost_params: MixNodeCostParams,
+    signature: MessageSignature,
+) -> Result<(), MixnetContractError> {
+    // recover the public key
+    let mut public_key = [0u8; 32];
+    bs58::decode(&mixnode.identity_key)
+        .into(&mut public_key)
+        .map_err(|err| MixnetContractError::MalformedEd25519IdentityKey(err.to_string()))?;
+
+    // reconstruct the payload
+    let nonce = signing_storage::get_signing_nonce(deps.storage, sender.clone())?;
+    let msg =
+        construct_mixnode_bonding_sign_payload(nonce, sender, proxy, pledge, mixnode, cost_params);
+
+    if deps.api.verify_message(msg, signature, &public_key)? {
+        Ok(())
+    } else {
+        Err(MixnetContractError::InvalidEd25519Signature)
+    }
+}
@@ -9,10 +9,11 @@ use crate::mixnet_contract_settings::storage::rewarding_denom;
 use crate::mixnodes::helpers::{
    get_mixnode_details_by_owner, must_get_mixnode_bond_by_owner, save_new_mixnode,
 };
+use crate::mixnodes::signature_helpers::verify_mixnode_bonding_signature;
+use crate::signing::storage as signing_storage;
 use crate::support::helpers::{
    ensure_bonded, ensure_epoch_in_progress_state, ensure_is_authorized, ensure_no_existing_bond,
-    ensure_proxy_match, ensure_sent_by_vesting_contract, validate_node_identity_signature,
-    validate_pledge,
+    ensure_proxy_match, ensure_sent_by_vesting_contract, validate_pledge,
 };
 use cosmwasm_std::{coin, Addr, Coin, DepsMut, Env, MessageInfo, Response, Storage};
 use mixnet_contract_common::error::MixnetContractError;
@@ -24,6 +25,7 @@ use mixnet_contract_common::events::{
 use mixnet_contract_common::mixnode::{MixNodeConfigUpdate, MixNodeCostParams};
 use mixnet_contract_common::pending_events::{PendingEpochEventKind, PendingIntervalEventKind};
 use mixnet_contract_common::{Layer, MixId, MixNode};
+use nym_contracts_common::signing::MessageSignature;

 pub(crate) fn update_mixnode_layer(
    mix_id: MixId,
@@ -61,7 +63,7 @@ pub fn try_add_mixnode(
    info: MessageInfo,
    mix_node: MixNode,
    cost_params: MixNodeCostParams,
-    owner_signature: String,
+    owner_signature: MessageSignature,
 ) -> Result<Response, MixnetContractError> {
    _try_add_mixnode(
        deps,
@@ -82,7 +84,7 @@ pub fn try_add_mixnode_on_behalf(
    mix_node: MixNode,
    cost_params: MixNodeCostParams,
    owner: String,
-    owner_signature: String,
+    owner_signature: MessageSignature,
 ) -> Result<Response, MixnetContractError> {
    ensure_sent_by_vesting_contract(&info, deps.storage)?;

@@ -101,6 +103,9 @@ pub fn try_add_mixnode_on_behalf(
 }

 // I'm not entirely sure how to deal with this warning at the current moment
+//
+// TODO: perhaps also require the user to explicitly provide what it thinks is the current nonce
+// so that we could return a better error message if it doesn't match?
 #[allow(clippy::too_many_arguments)]
 fn _try_add_mixnode(
    deps: DepsMut<'_>,
@@ -109,7 +114,7 @@ fn _try_add_mixnode(
    cost_params: MixNodeCostParams,
    pledge: Vec<Coin>,
    owner: Addr,
-    owner_signature: String,
+    owner_signature: MessageSignature,
    proxy: Option<Addr>,
 ) -> Result<Response, MixnetContractError> {
    // check if the pledge contains any funds of the appropriate denomination
@@ -126,13 +131,19 @@ fn _try_add_mixnode(
    // the bond information due to `UniqueIndex` constraint defined on those fields.

    // check if this sender actually owns the mixnode by checking the signature
-    validate_node_identity_signature(
+    verify_mixnode_bonding_signature(
        deps.as_ref(),
-        &owner,
-        &owner_signature,
-        &mixnode.identity_key,
+        owner.clone(),
+        proxy.clone(),
+        pledge.clone(),
+        mixnode.clone(),
+        cost_params.clone(),
+        owner_signature,
    )?;

+    // update the signing nonce associated with this sender so that the future signature would be made on the new value
+    signing_storage::increment_signing_nonce(deps.storage, owner.clone())?;
+
    let node_identity = mixnode.identity_key.clone();
    let (node_id, layer) = save_new_mixnode(
        deps.storage,
@@ -284,7 +295,7 @@ pub(crate) fn try_update_mixnode_config(
 }

 pub(crate) fn try_update_mixnode_config_on_behalf(
-    deps: DepsMut,
+    deps: DepsMut<'_>,
    info: MessageInfo,
    new_config: MixNodeConfigUpdate,
    owner: String,
@@ -297,7 +308,7 @@ pub(crate) fn try_update_mixnode_config_on_behalf(
 }

 pub(crate) fn _try_update_mixnode_config(
-    deps: DepsMut,
+    deps: DepsMut<'_>,
    new_config: MixNodeConfigUpdate,
    owner: Addr,
    proxy: Option<Addr>,
@@ -393,7 +404,7 @@ pub mod tests {
    use crate::support::tests::fixtures::{good_mixnode_pledge, TEST_COIN_DENOM};
    use crate::support::tests::test_helpers::TestSetup;
    use crate::support::tests::{fixtures, test_helpers};
-    use cosmwasm_std::testing::{mock_env, mock_info};
+    use cosmwasm_std::testing::mock_info;
    use cosmwasm_std::{Order, StdResult, Uint128};
    use mixnet_contract_common::{
        EpochState, EpochStatus, ExecuteMsg, Layer, LayerDistribution, Percent,
@@ -401,23 +412,23 @@ pub mod tests {

    #[test]
    fn mixnode_add() {
-        let mut deps = test_helpers::init_contract();
-        let env = mock_env();
-        let mut rng = test_helpers::test_rng();
+        let mut test = TestSetup::new();
+        let env = test.env();

        let sender = "alice";
-        let minimum_pledge = minimum_mixnode_pledge(deps.as_ref().storage).unwrap();
+        let minimum_pledge = minimum_mixnode_pledge(test.deps().storage).unwrap();
        let mut insufficient_pledge = minimum_pledge.clone();
        insufficient_pledge.amount -= Uint128::new(1000);

        // if we don't send enough funds
        let info = mock_info(sender, &[insufficient_pledge.clone()]);
-        let (mixnode, sig, _) = test_helpers::mixnode_with_signature(&mut rng, sender);
+        let (mixnode, sig, _) =
+            test.mixnode_with_signature(sender, Some(vec![insufficient_pledge.clone()]));
        let cost_params = fixtures::mix_node_cost_params_fixture();

        // we are informed that we didn't send enough funds
        let result = try_add_mixnode(
-            deps.as_mut(),
+            test.deps_mut(),
            env.clone(),
            info,
            mixnode.clone(),
@@ -435,31 +446,12 @@ pub mod tests {
        // if the signature provided is invalid, the bonding also fails
        let info = mock_info(sender, &[minimum_pledge]);

-        let result = try_add_mixnode(
-            deps.as_mut(),
-            env.clone(),
-            info.clone(),
-            mixnode.clone(),
-            cost_params.clone(),
-            "bad-signature".into(),
-        );
-        assert!(matches!(
-            result,
-            Err(MixnetContractError::MalformedEd25519Signature(..))
-        ));
-
        // if there was already a mixnode bonded by particular user
-        test_helpers::add_mixnode(
-            &mut rng,
-            deps.as_mut(),
-            env.clone(),
-            sender,
-            fixtures::good_mixnode_pledge(),
-        );
+        test.add_dummy_mixnode(sender, None);

        // it fails
        let result = try_add_mixnode(
-            deps.as_mut(),
+            test.deps_mut(),
            env.clone(),
            info,
            mixnode,
@@ -471,19 +463,13 @@ pub mod tests {
        // the same holds if the user already owns a gateway
        let sender2 = "gateway-owner";

-        test_helpers::add_gateway(
-            &mut rng,
-            deps.as_mut(),
-            env.clone(),
-            sender2,
-            tests::fixtures::good_gateway_pledge(),
-        );
+        test.add_dummy_gateway(sender2, None);

        let info = mock_info(sender2, &tests::fixtures::good_mixnode_pledge());
-        let (mixnode, sig, _) = test_helpers::mixnode_with_signature(&mut rng, sender2);
+        let (mixnode, sig, _) = test.mixnode_with_signature(sender2, None);

        let result = try_add_mixnode(
-            deps.as_mut(),
+            test.deps_mut(),
            env.clone(),
            info.clone(),
            mixnode.clone(),
@@ -494,14 +480,14 @@ pub mod tests {

        // but after he unbonds it, it's all fine again
        let msg = ExecuteMsg::UnbondGateway {};
-        execute(deps.as_mut(), mock_env(), info.clone(), msg).unwrap();
+        execute(test.deps_mut(), env.clone(), info.clone(), msg).unwrap();

-        let result = try_add_mixnode(deps.as_mut(), env, info, mixnode, cost_params, sig);
+        let result = try_add_mixnode(test.deps_mut(), env, info, mixnode, cost_params, sig);
        assert!(result.is_ok());

        // make sure we got assigned the next id (note: we have already bonded a mixnode before in this test)
-        let bond = must_get_mixnode_bond_by_owner(deps.as_ref().storage, &Addr::unchecked(sender2))
-            .unwrap();
+        let bond =
+            must_get_mixnode_bond_by_owner(test.deps().storage, &Addr::unchecked(sender2)).unwrap();
        assert_eq!(2, bond.mix_id);

        // and make sure we're on layer 2 (because it was the next empty one)
@@ -513,10 +499,84 @@ pub mod tests {
            layer2: 1,
            layer3: 0,
        };
-        assert_eq!(
-            expected,
-            storage::LAYERS.load(deps.as_ref().storage).unwrap()
-        )
+        assert_eq!(expected, storage::LAYERS.load(test.deps().storage).unwrap())
+    }
+
+    #[test]
+    fn adding_mixnode_with_invalid_signatures() {
+        let mut test = TestSetup::new();
+        let env = test.env();
+
+        let sender = "alice";
+        let pledge = good_mixnode_pledge();
+        let info = mock_info(sender, pledge.as_ref());
+
+        let (mixnode, signature, _) = test.mixnode_with_signature(sender, Some(pledge.clone()));
+        // the above using cost params fixture
+        let cost_params = fixtures::mix_node_cost_params_fixture();
+
+        // using different parameters than what the signature was made on
+        let mut modified_mixnode = mixnode.clone();
+        modified_mixnode.mix_port += 1;
+        let res = try_add_mixnode(
+            test.deps_mut(),
+            env.clone(),
+            info,
+            modified_mixnode,
+            cost_params.clone(),
+            signature.clone(),
+        );
+        assert_eq!(res, Err(MixnetContractError::InvalidEd25519Signature));
+
+        // even stake amount is protected
+        let mut different_pledge = pledge.clone();
+        different_pledge[0].amount += Uint128::new(12345);
+
+        let info = mock_info(sender, different_pledge.as_ref());
+        let res = try_add_mixnode(
+            test.deps_mut(),
+            env.clone(),
+            info.clone(),
+            mixnode.clone(),
+            cost_params.clone(),
+            signature.clone(),
+        );
+        assert_eq!(res, Err(MixnetContractError::InvalidEd25519Signature));
+
+        let other_sender = mock_info("another-sender", pledge.as_ref());
+        let res = try_add_mixnode(
+            test.deps_mut(),
+            env.clone(),
+            other_sender,
+            mixnode.clone(),
+            cost_params.clone(),
+            signature.clone(),
+        );
+        assert_eq!(res, Err(MixnetContractError::InvalidEd25519Signature));
+
+        // trying to reuse the same signature for another bonding fails (because nonce doesn't match!)
+        let info = mock_info(sender, pledge.as_ref());
+        let current_nonce =
+            signing_storage::get_signing_nonce(test.deps().storage, Addr::unchecked(sender))
+                .unwrap();
+        assert_eq!(0, current_nonce);
+        let res = try_add_mixnode(
+            test.deps_mut(),
+            env.clone(),
+            info.clone(),
+            mixnode.clone(),
+            cost_params.clone(),
+            signature.clone(),
+        );
+        assert!(res.is_ok());
+        let updated_nonce =
+            signing_storage::get_signing_nonce(test.deps().storage, Addr::unchecked(sender))
+                .unwrap();
+        assert_eq!(1, updated_nonce);
+
+        test.immediately_unbond_mixnode(1);
+        let res = try_add_mixnode(test.deps_mut(), env, info, mixnode, cost_params, signature);
+        assert_eq!(res, Err(MixnetContractError::InvalidEd25519Signature));
    }

    #[test]
@@ -528,10 +588,9 @@ pub mod tests {
        let vesting_contract = test.vesting_contract();

        let owner = "alice";
-        let (mixnode, sig, _) = test_helpers::mixnode_with_signature(&mut test.rng, owner);
+        let (mixnode, sig, _) = test.mixnode_with_signature(owner, None);
        let cost_params = fixtures::mix_node_cost_params_fixture();

-        // we are informed that we didn't send enough funds
        let res = try_add_mixnode_on_behalf(
            test.deps_mut(),
            env,
@@ -920,52 +979,53 @@ pub mod tests {

    #[test]
    fn adding_mixnode_with_duplicate_sphinx_key_errors_out() {
-        let mut deps = test_helpers::init_contract();
-        let mut rng = test_helpers::test_rng();
+        let mut test = TestSetup::new();
+        let env = test.env();

-        let keypair1 = nym_crypto::asymmetric::identity::KeyPair::new(&mut rng);
-        let keypair2 = nym_crypto::asymmetric::identity::KeyPair::new(&mut rng);
-        let sig1 = keypair1.private_key().sign_text("alice");
-        let sig2 = keypair1.private_key().sign_text("bob");
+        let keypair1 = nym_crypto::asymmetric::identity::KeyPair::new(&mut test.rng);
+        let keypair2 = nym_crypto::asymmetric::identity::KeyPair::new(&mut test.rng);

-        let info_alice = mock_info("alice", &tests::fixtures::good_mixnode_pledge());
-        let info_bob = mock_info("bob", &tests::fixtures::good_mixnode_pledge());
-
-        let mut mixnode = MixNode {
+        let cost_params = fixtures::mix_node_cost_params_fixture();
+        let mixnode1 = MixNode {
            host: "1.2.3.4".to_string(),
            mix_port: 1234,
            verloc_port: 1234,
            http_api_port: 1234,
-            sphinx_key: nym_crypto::asymmetric::encryption::KeyPair::new(&mut rng)
+            sphinx_key: nym_crypto::asymmetric::encryption::KeyPair::new(&mut test.rng)
                .public_key()
                .to_base58_string(),
            identity_key: keypair1.public_key().to_base58_string(),
            version: "v0.1.2.3".to_string(),
        };
-        let cost_params = fixtures::mix_node_cost_params_fixture();
+
+        // change identity but reuse sphinx key
+        let mut mixnode2 = mixnode1.clone();
+        mixnode2.sphinx_key = nym_crypto::asymmetric::encryption::KeyPair::new(&mut test.rng)
+            .public_key()
+            .to_base58_string();
+
+        let sig1 =
+            test.mixnode_bonding_signature(keypair1.private_key(), "alice", mixnode1.clone(), None);
+        let sig2 =
+            test.mixnode_bonding_signature(keypair2.private_key(), "bob", mixnode2.clone(), None);
+
+        let info_alice = mock_info("alice", &tests::fixtures::good_mixnode_pledge());
+        let info_bob = mock_info("bob", &tests::fixtures::good_mixnode_pledge());

        assert!(try_add_mixnode(
-            deps.as_mut(),
-            mock_env(),
+            test.deps_mut(),
+            env.clone(),
            info_alice,
-            mixnode.clone(),
+            mixnode1,
            cost_params.clone(),
            sig1
        )
        .is_ok());

-        mixnode.identity_key = keypair2.public_key().to_base58_string();
-
        // change identity but reuse sphinx key
-        assert!(try_add_mixnode(
-            deps.as_mut(),
-            mock_env(),
-            info_bob,
-            mixnode,
-            cost_params,
-            sig2
-        )
-        .is_err());
+        assert!(
+            try_add_mixnode(test.deps_mut(), env, info_bob, mixnode2, cost_params, sig2).is_err()
+        );
    }

    #[cfg(test)]
@@ -0,0 +1,5 @@
+// Copyright 2023 - Nym Technologies SA <contact@nymtech.net>
+// SPDX-License-Identifier: Apache-2.0
+
+pub mod queries;
+pub mod storage;
@@ -0,0 +1,11 @@
+// Copyright 2023 - Nym Technologies SA <contact@nymtech.net>
+// SPDX-License-Identifier: Apache-2.0
+
+use crate::signing::storage::get_signing_nonce;
+use cosmwasm_std::{Deps, StdResult};
+use nym_contracts_common::signing::Nonce;
+
+pub fn query_current_signing_nonce(deps: Deps<'_>, address: String) -> StdResult<Nonce> {
+    let address = deps.api.addr_validate(&address)?;
+    get_signing_nonce(deps.storage, address)
+}
@@ -0,0 +1,30 @@
+// Copyright 2023 - Nym Technologies SA <contact@nymtech.net>
+// SPDX-License-Identifier: Apache-2.0
+
+use crate::constants::SIGNING_NONCES_NAMESPACE;
+use cosmwasm_std::{Addr, StdResult, Storage};
+use cw_storage_plus::Map;
+use nym_contracts_common::signing::Nonce;
+
+pub const NONCES: Map<'_, Addr, Nonce> = Map::new(SIGNING_NONCES_NAMESPACE);
+
+pub fn get_signing_nonce(storage: &dyn Storage, address: Addr) -> StdResult<Nonce> {
+    let nonce = NONCES.may_load(storage, address)?.unwrap_or(0);
+    Ok(nonce)
+}
+
+pub fn update_signing_nonce(
+    storage: &mut dyn Storage,
+    address: Addr,
+    value: Nonce,
+) -> StdResult<()> {
+    NONCES.save(storage, address, &value)
+}
+
+pub fn increment_signing_nonce(storage: &mut dyn Storage, address: Addr) -> StdResult<()> {
+    // get the current nonce
+    let nonce = get_signing_nonce(storage, address.clone())?;
+
+    // increment it for the next use
+    update_signing_nonce(storage, address, nonce + 1)
+}
@@ -377,7 +377,7 @@ pub fn validate_node_identity_signature(
    signature: &str,
    identity: IdentityKeyRef<'_>,
 ) -> Result<(), MixnetContractError> {
-    validate_signature(deps, owner.as_bytes(), signature, identity)
+    validate_ed25519_signature(deps, owner.as_bytes(), signature, identity)
 }

 pub fn validate_family_signature(
@@ -386,10 +386,10 @@ pub fn validate_family_signature(
    signature: &str,
    family_head: IdentityKeyRef<'_>,
 ) -> Result<(), MixnetContractError> {
-    validate_signature(deps, family_member.as_bytes(), signature, family_head)
+    validate_ed25519_signature(deps, family_member.as_bytes(), signature, family_head)
 }

-pub(crate) fn validate_signature(
+pub(crate) fn validate_ed25519_signature(
    deps: Deps<'_>,
    signed_bytes: &[u8],
    signature: &str,
@@ -1,25 +1,34 @@
+use cosmwasm_std::{Coin, Deps};
 use mixnet_contract_common::{ExecuteMsg, Gateway, IdentityKey};
+use nym_crypto::asymmetric::identity;
 use rand_chacha::rand_core::{CryptoRng, RngCore};

 use crate::support::tests;
+use crate::support::tests::test_helpers::{ed25519_sign_message, gateway_bonding_sign_payload};

 pub(crate) fn valid_bond_gateway_msg(
    mut rng: impl RngCore + CryptoRng,
+    deps: Deps<'_>,
+    stake: Vec<Coin>,
    sender: &str,
 ) -> (ExecuteMsg, IdentityKey) {
-    let keypair = nym_crypto::asymmetric::identity::KeyPair::new(&mut rng);
-    let owner_signature = keypair
-        .private_key()
-        .sign(sender.as_bytes())
-        .to_base58_string();
+    let keypair = identity::KeyPair::new(&mut rng);
+    let identity_key = keypair.public_key().to_base58_string();
+    let legit_sphinx_keys = nym_crypto::asymmetric::encryption::KeyPair::new(&mut rng);
+
+    let gateway = Gateway {
+        identity_key,
+        sphinx_key: legit_sphinx_keys.public_key().to_base58_string(),
+        ..tests::fixtures::gateway_fixture()
+    };
+
+    let msg = gateway_bonding_sign_payload(deps, sender, None, gateway.clone(), stake);
+    let owner_signature = ed25519_sign_message(msg, keypair.private_key());

    let identity_key = keypair.public_key().to_base58_string();
    (
        ExecuteMsg::BondGateway {
-            gateway: Gateway {
-                identity_key: identity_key.clone(),
-                ..tests::fixtures::gateway_fixture()
-            },
+            gateway,
            owner_signature,
        },
        identity_key,
@@ -5,8 +5,6 @@
 pub mod fixtures;
 #[cfg(test)]
 pub mod messages;
-#[cfg(test)]
-pub mod queries;

 #[cfg(test)]
 pub mod test_helpers {
@@ -22,9 +20,10 @@ pub mod test_helpers {
        perform_pending_epoch_actions, perform_pending_interval_actions, try_begin_epoch_transition,
    };
    use crate::interval::{pending_events, storage as interval_storage};
-    use crate::mixnet_contract_settings::storage as mixnet_params_storage;
+    use crate::mixnet_contract_settings::storage::{self as mixnet_params_storage};
    use crate::mixnet_contract_settings::storage::{
-        minimum_mixnode_pledge, rewarding_denom, rewarding_validator_address,
+        minimum_gateway_pledge, minimum_mixnode_pledge, rewarding_denom,
+        rewarding_validator_address,
    };
    use crate::mixnodes::storage as mixnodes_storage;
    use crate::mixnodes::storage::mixnode_bonds;
@@ -36,8 +35,11 @@ pub mod test_helpers {
    };
    use crate::rewards::storage as rewards_storage;
    use crate::rewards::transactions::try_reward_mixnode;
+    use crate::signing::storage as signing_storage;
    use crate::support::tests;
-    use crate::support::tests::fixtures::TEST_COIN_DENOM;
+    use crate::support::tests::fixtures::{
+        good_gateway_pledge, good_mixnode_pledge, TEST_COIN_DENOM,
+    };
    use cosmwasm_std::testing::mock_dependencies;
    use cosmwasm_std::testing::mock_env;
    use cosmwasm_std::testing::mock_info;
@@ -59,13 +61,19 @@ pub mod test_helpers {
    use mixnet_contract_common::rewarding::simulator::Simulator;
    use mixnet_contract_common::rewarding::RewardDistribution;
    use mixnet_contract_common::{
-        Delegation, EpochState, EpochStatus, Gateway, IdentityKey, InitialRewardingParams,
-        InstantiateMsg, Interval, MixId, MixNode, MixNodeBond, Percent, RewardedSetNodeStatus,
+        Delegation, EpochState, EpochStatus, Gateway, GatewayBondingPayload, IdentityKey,
+        InitialRewardingParams, InstantiateMsg, Interval, MixId, MixNode, MixNodeBond,
+        MixnodeBondingPayload, Percent, RewardedSetNodeStatus, SignableGatewayBondingMsg,
+        SignableMixNodeBondingMsg,
+    };
+    use nym_contracts_common::signing::{
+        ContractMessageContent, MessageSignature, SignableMessage, SigningAlgorithm, SigningPurpose,
    };
    use nym_crypto::asymmetric::identity;
    use nym_crypto::asymmetric::identity::KeyPair;
    use rand_chacha::rand_core::{CryptoRng, RngCore, SeedableRng};
    use rand_chacha::ChaCha20Rng;
+    use serde::Serialize;
    use std::time::Duration;

    pub fn assert_eq_with_leeway(a: Uint128, b: Uint128, leeway: Uint128) {
@@ -190,7 +198,7 @@ pub mod test_helpers {
            head: &str,
            label: &str,
        ) -> (MixId, identity::KeyPair) {
-            let (mix_id, keys) = self.add_dummy_mixnode_with_keypair(head, None);
+            let (mix_id, keys) = self.add_dummy_mixnode_with_proxy_and_keypair(head, None);
            let sig = keys.private_key().sign_text(head);

            try_create_family(self.deps_mut(), mock_info(head, &[]), sig, label).unwrap();
@@ -198,6 +206,57 @@ pub mod test_helpers {
        }

        pub fn add_dummy_mixnode(&mut self, owner: &str, stake: Option<Uint128>) -> MixId {
+            let stake = self.make_mix_pledge(stake);
+            let (mixnode, owner_signature, _) =
+                self.mixnode_with_signature(owner, Some(stake.clone()));
+
+            let info = mock_info(owner, stake.as_ref());
+            let current_id_counter = mixnodes_storage::MIXNODE_ID_COUNTER
+                .may_load(self.deps().storage)
+                .unwrap()
+                .unwrap_or_default();
+
+            let env = self.env();
+
+            try_add_mixnode(
+                self.deps_mut(),
+                env,
+                info,
+                mixnode,
+                tests::fixtures::mix_node_cost_params_fixture(),
+                owner_signature,
+            )
+            .unwrap();
+
+            // newly added mixnode gets assigned the current counter + 1
+            current_id_counter + 1
+        }
+
+        pub fn add_dummy_gateway(&mut self, sender: &str, stake: Option<Uint128>) -> IdentityKey {
+            let stake = self.make_gateway_pledge(stake);
+            let (gateway, owner_signature) =
+                self.gateway_with_signature(sender, Some(stake.clone()));
+
+            let info = mock_info(sender, &stake);
+            let key = gateway.identity_key.clone();
+            let env = self.env();
+            try_add_gateway(self.deps_mut(), env, info, gateway, owner_signature).unwrap();
+            key
+        }
+
+        pub fn add_dummy_mixnodes(&mut self, n: usize) {
+            for i in 0..n {
+                self.add_dummy_mixnode(&format!("owner{i}"), None);
+            }
+        }
+
+        pub fn add_dummy_gateways(&mut self, n: usize) {
+            for i in 0..n {
+                self.add_dummy_gateway(&format!("owner{i}"), None);
+            }
+        }
+
+        pub fn make_mix_pledge(&self, stake: Option<Uint128>) -> Vec<Coin> {
            let stake = match stake {
                Some(amount) => {
                    let denom = rewarding_denom(self.deps().storage).unwrap();
@@ -205,36 +264,61 @@ pub mod test_helpers {
                }
                None => minimum_mixnode_pledge(self.deps.as_ref().storage).unwrap(),
            };
-
-            let env = self.env();
-            add_mixnode(&mut self.rng, self.deps.as_mut(), env, owner, vec![stake])
+            vec![stake]
        }

-        pub fn add_dummy_mixnode_with_keypair(
+        pub fn make_gateway_pledge(&self, stake: Option<Uint128>) -> Vec<Coin> {
+            let stake = match stake {
+                Some(amount) => {
+                    let denom = rewarding_denom(self.deps().storage).unwrap();
+                    Coin { denom, amount }
+                }
+                None => minimum_gateway_pledge(self.deps.as_ref().storage).unwrap(),
+            };
+            vec![stake]
+        }
+
+        pub fn mixnode_bonding_signature(
+            &mut self,
+            key: &identity::PrivateKey,
+            owner: &str,
+            mixnode: MixNode,
+            stake: Option<Uint128>,
+        ) -> MessageSignature {
+            let stake = self.make_mix_pledge(stake);
+            let msg = mixnode_bonding_sign_payload(self.deps(), owner, None, mixnode, stake);
+            ed25519_sign_message(msg, key)
+        }
+
+        pub fn add_dummy_mixnode_with_proxy_and_keypair(
            &mut self,
            owner: &str,
            stake: Option<Uint128>,
        ) -> (MixId, identity::KeyPair) {
-            let stake = match stake {
-                Some(amount) => {
-                    let denom = rewarding_denom(self.deps().storage).unwrap();
-                    Coin { denom, amount }
-                }
-                None => minimum_mixnode_pledge(self.deps.as_ref().storage).unwrap(),
-            };
+            let stake = self.make_mix_pledge(stake);

            let proxy = self.vesting_contract();

            let keypair = identity::KeyPair::new(&mut self.rng);
-            let owner_signature = keypair
-                .private_key()
-                .sign(owner.as_bytes())
-                .to_base58_string();
+            let identity_key = keypair.public_key().to_base58_string();
+            let legit_sphinx_keys = nym_crypto::asymmetric::encryption::KeyPair::new(&mut self.rng);

-            let legit_sphinx_key = nym_crypto::asymmetric::encryption::KeyPair::new(&mut self.rng);
+            let mixnode = MixNode {
+                identity_key,
+                sphinx_key: legit_sphinx_keys.public_key().to_base58_string(),
+                ..tests::fixtures::mix_node_fixture()
+            };

-            let info = mock_info(proxy.as_str(), &[stake]);
-            let key = keypair.public_key().to_base58_string();
+            let msg = mixnode_bonding_sign_payload(
+                self.deps(),
+                owner,
+                Some(proxy.clone()),
+                mixnode.clone(),
+                stake.clone(),
+            );
+            let owner_signature = ed25519_sign_message(msg, keypair.private_key());
+
+            let info = mock_info(proxy.as_str(), &stake);
            let current_id_counter = mixnodes_storage::MIXNODE_ID_COUNTER
                .may_load(self.deps().storage)
                .unwrap()
@@ -245,11 +329,7 @@ pub mod test_helpers {
                self.deps_mut(),
                env,
                info,
-                MixNode {
-                    identity_key: key,
-                    sphinx_key: legit_sphinx_key.public_key().to_base58_string(),
-                    ..tests::fixtures::mix_node_fixture()
-                },
+                mixnode,
                tests::fixtures::mix_node_cost_params_fixture(),
                owner.to_string(),
                owner_signature,
@@ -265,7 +345,8 @@ pub mod test_helpers {
            owner: &str,
            stake: Option<Uint128>,
        ) -> MixId {
-            self.add_dummy_mixnode_with_keypair(owner, stake).0
+            self.add_dummy_mixnode_with_proxy_and_keypair(owner, stake)
+                .0
        }

        pub fn set_illegal_mixnode_proxy(&mut self, mix_id: MixId, proxy: Addr) {
@@ -312,14 +393,26 @@ pub mod test_helpers {
                None => minimum_mixnode_pledge(self.deps.as_ref().storage).unwrap(),
            };

+            let keypair = identity::KeyPair::new(&mut self.rng);
+            let identity_key = keypair.public_key().to_base58_string();
+            let legit_sphinx_keys = nym_crypto::asymmetric::encryption::KeyPair::new(&mut self.rng);
+
            let proxy = self.vesting_contract();

-            let legit_sphinx_key = nym_crypto::asymmetric::encryption::KeyPair::new(&mut self.rng);
-            let keypair = nym_crypto::asymmetric::identity::KeyPair::new(&mut self.rng);
-            let owner_signature = keypair
-                .private_key()
-                .sign(owner.as_bytes())
-                .to_base58_string();
+            let gateway = Gateway {
+                identity_key,
+                sphinx_key: legit_sphinx_keys.public_key().to_base58_string(),
+                ..tests::fixtures::gateway_fixture()
+            };
+
+            let msg = gateway_bonding_sign_payload(
+                self.deps(),
+                owner,
+                Some(proxy.clone()),
+                gateway.clone(),
+                vec![stake.clone()],
+            );
+            let owner_signature = ed25519_sign_message(msg, keypair.private_key());

            let env = self.env();
            let info = mock_info(proxy.as_ref(), &[stake]);
@@ -328,11 +421,7 @@ pub mod test_helpers {
                self.deps_mut(),
                env,
                info,
-                Gateway {
-                    identity_key: keypair.public_key().to_base58_string(),
-                    sphinx_key: legit_sphinx_key.public_key().to_base58_string(),
-                    ..tests::fixtures::gateway_fixture()
-                },
+                gateway,
                owner.to_string(),
                owner_signature,
            )
@@ -351,6 +440,63 @@ pub mod test_helpers {
            mix_id
        }

+        pub fn mixnode_with_signature(
+            &mut self,
+            sender: &str,
+            stake: Option<Vec<Coin>>,
+        ) -> (MixNode, MessageSignature, KeyPair) {
+            let stake = stake.unwrap_or(good_mixnode_pledge());
+
+            let keypair = identity::KeyPair::new(&mut self.rng);
+            let identity_key = keypair.public_key().to_base58_string();
+            let legit_sphinx_keys = nym_crypto::asymmetric::encryption::KeyPair::new(&mut self.rng);
+
+            let mixnode = MixNode {
+                identity_key,
+                sphinx_key: legit_sphinx_keys.public_key().to_base58_string(),
+                ..tests::fixtures::mix_node_fixture()
+            };
+            let msg = mixnode_bonding_sign_payload(
+                self.deps(),
+                sender,
+                None,
+                mixnode.clone(),
+                stake.clone(),
+            );
+            let owner_signature = ed25519_sign_message(msg, keypair.private_key());
+
+            (mixnode, owner_signature, keypair)
+        }
+
+        pub fn gateway_with_signature(
+            &mut self,
+            sender: &str,
+            stake: Option<Vec<Coin>>,
+        ) -> (Gateway, MessageSignature) {
+            let stake = stake.unwrap_or(good_gateway_pledge());
+
+            let keypair = identity::KeyPair::new(&mut self.rng);
+            let identity_key = keypair.public_key().to_base58_string();
+            let legit_sphinx_keys = nym_crypto::asymmetric::encryption::KeyPair::new(&mut self.rng);
+
+            let gateway = Gateway {
+                identity_key,
+                sphinx_key: legit_sphinx_keys.public_key().to_base58_string(),
+                ..tests::fixtures::gateway_fixture()
+            };
+
+            let msg = gateway_bonding_sign_payload(
+                self.deps(),
+                sender,
+                None,
+                gateway.clone(),
+                stake.clone(),
+            );
+            let owner_signature = ed25519_sign_message(msg, keypair.private_key());
+
+            (gateway, owner_signature)
+        }
+
        pub fn start_unbonding_mixnode(&mut self, mix_id: MixId) {
            let bond_details = mixnodes_storage::mixnode_bonds()
                .load(self.deps().storage, mix_id)
@@ -714,6 +860,22 @@ pub mod test_helpers {
        }
    }

+    pub fn ed25519_sign_message<T: Serialize + SigningPurpose>(
+        message: SignableMessage<T>,
+        private_key: &identity::PrivateKey,
+    ) -> MessageSignature {
+        match message.algorithm {
+            SigningAlgorithm::Ed25519 => {
+                let plaintext = message.to_plaintext().unwrap();
+                let signature = private_key.sign(&plaintext);
+                MessageSignature::from(signature.to_bytes().as_ref())
+            }
+            SigningAlgorithm::Secp256k1 => {
+                unimplemented!()
+            }
+        }
+    }
+
    pub fn simulator_from_single_node_state(deps: Deps<'_>, node: MixId) -> Simulator {
        let mix_rewarding = rewards_storage::MIXNODE_REWARDING
            .load(deps.storage, node)
@@ -800,54 +962,54 @@ pub mod test_helpers {
        perform_pending_interval_actions(deps.branch(), &env, None).unwrap();
    }

-    pub fn mixnode_with_signature(
-        mut rng: impl RngCore + CryptoRng,
-        sender: &str,
-    ) -> (MixNode, String, KeyPair) {
-        let keypair = nym_crypto::asymmetric::identity::KeyPair::new(&mut rng);
-        let legit_sphinx_key = nym_crypto::asymmetric::encryption::KeyPair::new(&mut rng);
-        let owner_signature = keypair
-            .private_key()
-            .sign(sender.as_bytes())
-            .to_base58_string();
+    // pub fn mixnode_with_signature(
+    //     mut rng: impl RngCore + CryptoRng,
+    //     deps: Deps<'_>,
+    //     sender: &str,
+    //     stake: Option<Vec<Coin>>,
+    // ) -> (MixNode, MessageSignature, KeyPair) {
+    //     // hehe stupid workaround for bypassing the immutable borrow and removing duplicate code
+    //
+    //     let stake = stake.unwrap_or(good_mixnode_pledge());
+    //
+    //     let keypair = identity::KeyPair::new(&mut rng);
+    //     let identity_key = keypair.public_key().to_base58_string();
+    //     let legit_sphinx_keys = nym_crypto::asymmetric::encryption::KeyPair::new(&mut rng);
+    //
+    //     let mixnode = MixNode {
+    //         identity_key,
+    //         sphinx_key: legit_sphinx_keys.public_key().to_base58_string(),
+    //         ..tests::fixtures::mix_node_fixture()
+    //     };
+    //     let msg = mixnode_bonding_sign_payload(deps, sender, None, mixnode.clone(), stake.clone());
+    //     let owner_signature = ed25519_sign_message(msg, keypair.private_key());
+    //
+    //     (mixnode, owner_signature, keypair)
+    // }

-        let identity_key = keypair.public_key().to_base58_string();
-        let sphinx_key = legit_sphinx_key.public_key().to_base58_string();
-
-        (
-            MixNode {
-                identity_key,
-                sphinx_key,
-                ..tests::fixtures::mix_node_fixture()
-            },
-            owner_signature,
-            keypair,
-        )
-    }
-
-    pub fn gateway_with_signature(
-        mut rng: impl RngCore + CryptoRng,
-        sender: &str,
-    ) -> (Gateway, String) {
-        let keypair = nym_crypto::asymmetric::identity::KeyPair::new(&mut rng);
-        let legit_sphinx_key = nym_crypto::asymmetric::encryption::KeyPair::new(&mut rng);
-        let owner_signature = keypair
-            .private_key()
-            .sign(sender.as_bytes())
-            .to_base58_string();
-
-        let identity_key = keypair.public_key().to_base58_string();
-        let sphinx_key = legit_sphinx_key.public_key().to_base58_string();
-
-        (
-            Gateway {
-                identity_key,
-                sphinx_key,
-                ..tests::fixtures::gateway_fixture()
-            },
-            owner_signature,
-        )
-    }
+    // pub fn gateway_with_signature(
+    //     mut rng: impl RngCore + CryptoRng,
+    //     deps: Deps<'_>,
+    //     sender: &str,
+    //     stake: Option<Vec<Coin>>,
+    // ) -> (Gateway, MessageSignature) {
+    //     let stake = stake.unwrap_or(good_gateway_pledge());
+    //
+    //     let keypair = identity::KeyPair::new(&mut rng);
+    //     let identity_key = keypair.public_key().to_base58_string();
+    //     let legit_sphinx_keys = nym_crypto::asymmetric::encryption::KeyPair::new(&mut rng);
+    //
+    //     let gateway = Gateway {
+    //         identity_key,
+    //         sphinx_key: legit_sphinx_keys.public_key().to_base58_string(),
+    //         ..tests::fixtures::gateway_fixture()
+    //     };
+    //
+    //     let msg = gateway_bonding_sign_payload(deps, sender, None, gateway.clone(), stake.clone());
+    //     let owner_signature = ed25519_sign_message(msg, keypair.private_key());
+    //
+    //     (gateway, owner_signature)
+    // }

    pub fn add_dummy_delegations(mut deps: DepsMut<'_>, env: Env, mix_id: MixId, n: usize) {
        for i in 0..n {
@@ -864,39 +1026,22 @@ pub mod test_helpers {
        }
    }

-    pub fn add_dummy_mixnodes(
-        mut rng: impl RngCore + CryptoRng,
-        mut deps: DepsMut<'_>,
-        env: Env,
-        n: usize,
-    ) {
-        for i in 0..n {
-            add_mixnode(
-                &mut rng,
-                deps.branch(),
-                env.clone(),
-                &format!("owner{}", i),
-                tests::fixtures::good_mixnode_pledge(),
-            );
-        }
-    }
-
-    pub fn add_dummy_gateways(
-        mut rng: impl RngCore + CryptoRng,
-        mut deps: DepsMut<'_>,
-        env: Env,
-        n: usize,
-    ) {
-        for i in 0..n {
-            add_gateway(
-                &mut rng,
-                deps.branch(),
-                env.clone(),
-                &format!("owner{}", i),
-                tests::fixtures::good_mixnode_pledge(),
-            );
-        }
-    }
+    // pub fn add_dummy_mixnodes(
+    //     mut rng: impl RngCore + CryptoRng,
+    //     mut deps: DepsMut<'_>,
+    //     env: Env,
+    //     n: usize,
+    // ) {
+    //     for i in 0..n {
+    //         add_mixnode(
+    //             &mut rng,
+    //             deps.branch(),
+    //             env.clone(),
+    //             &format!("owner{}", i),
+    //             tests::fixtures::good_mixnode_pledge(),
+    //         );
+    //     }
+    // }

    pub fn add_dummy_unbonded_mixnodes(
        mut rng: impl RngCore + CryptoRng,
@@ -968,79 +1113,35 @@ pub mod test_helpers {
        id
    }

-    // note to whoever wants to refactor this function, you dont want to grab rng here directly
-    // via `let rng = test_rng()`
-    // because it's extremely likely you might end up calling `add_mixnode()` multiple times
-    // in the same test and thus you're going to get mixnodes with the same keys and that's
-    // not what you want (presumably)
-    pub fn add_mixnode(
-        mut rng: impl RngCore + CryptoRng,
-        deps: DepsMut<'_>,
-        env: Env,
-        sender: &str,
+    pub fn mixnode_bonding_sign_payload(
+        deps: Deps<'_>,
+        owner: &str,
+        proxy: Option<Addr>,
+        mixnode: MixNode,
        stake: Vec<Coin>,
-    ) -> MixId {
-        let keypair = nym_crypto::asymmetric::identity::KeyPair::new(&mut rng);
-        let owner_signature = keypair
-            .private_key()
-            .sign(sender.as_bytes())
-            .to_base58_string();
+    ) -> SignableMixNodeBondingMsg {
+        let cost_params = tests::fixtures::mix_node_cost_params_fixture();
+        let nonce =
+            signing_storage::get_signing_nonce(deps.storage, Addr::unchecked(owner)).unwrap();

-        let legit_sphinx_key = nym_crypto::asymmetric::encryption::KeyPair::new(&mut rng);
-
-        let info = mock_info(sender, &stake);
-        let key = keypair.public_key().to_base58_string();
-        let current_id_counter = mixnodes_storage::MIXNODE_ID_COUNTER
-            .may_load(deps.storage)
-            .unwrap()
-            .unwrap_or_default();
-
-        try_add_mixnode(
-            deps,
-            env,
-            info,
-            MixNode {
-                identity_key: key,
-                sphinx_key: legit_sphinx_key.public_key().to_base58_string(),
-                ..tests::fixtures::mix_node_fixture()
-            },
-            tests::fixtures::mix_node_cost_params_fixture(),
-            owner_signature,
-        )
-        .unwrap();
-
-        // newly added mixnode gets assigned the current counter + 1
-        current_id_counter + 1
+        let payload = MixnodeBondingPayload::new(mixnode, cost_params);
+        let content = ContractMessageContent::new(Addr::unchecked(owner), proxy, stake, payload);
+        SignableMixNodeBondingMsg::new(nonce, content)
    }

-    // same note as with `add_mixnode`
-    pub fn add_gateway(
-        mut rng: impl RngCore + CryptoRng,
-        deps: DepsMut<'_>,
-        env: Env,
-        sender: &str,
+    pub fn gateway_bonding_sign_payload(
+        deps: Deps<'_>,
+        owner: &str,
+        proxy: Option<Addr>,
+        gateway: Gateway,
        stake: Vec<Coin>,
-    ) -> String {
-        let keypair = nym_crypto::asymmetric::identity::KeyPair::new(&mut rng);
-        let owner_signature = keypair
-            .private_key()
-            .sign(sender.as_bytes())
-            .to_base58_string();
+    ) -> SignableGatewayBondingMsg {
+        let nonce =
+            signing_storage::get_signing_nonce(deps.storage, Addr::unchecked(owner)).unwrap();

-        let info = mock_info(sender, &stake);
-        let key = keypair.public_key().to_base58_string();
-        try_add_gateway(
-            deps,
-            env,
-            info,
-            Gateway {
-                identity_key: key.clone(),
-                ..tests::fixtures::gateway_fixture()
-            },
-            owner_signature,
-        )
-        .unwrap();
-        key
+        let payload = GatewayBondingPayload::new(gateway);
+        let content = ContractMessageContent::new(Addr::unchecked(owner), proxy, stake, payload);
+        SignableGatewayBondingMsg::new(nonce, content)
    }

    fn initial_rewarding_params() -> InitialRewardingParams {
@@ -1,39 +0,0 @@
-use crate::contract::query;
-use cosmwasm_std::{
-    from_binary,
-    testing::{mock_env, MockApi, MockQuerier, MockStorage},
-    OwnedDeps,
-};
-use mixnet_contract_common::{GatewayBond, PagedGatewayResponse, QueryMsg};
-
-// I honestly don't know why we're using this way of querying in tests, but I couldn't be bothered to change it
-// since I haven't done anything to gateways
-pub fn get_gateways(deps: &mut OwnedDeps<MockStorage, MockApi, MockQuerier>) -> Vec<GatewayBond> {
-    let result = query(
-        deps.as_ref(),
-        mock_env(),
-        QueryMsg::GetGateways {
-            start_after: None,
-            limit: None,
-        },
-    )
-    .unwrap();
-
-    let page: PagedGatewayResponse = from_binary(&result).unwrap();
-    if page.start_next_after.is_some() {
-        let next_page = query(
-            deps.as_ref(),
-            mock_env(),
-            QueryMsg::GetGateways {
-                start_after: page.start_next_after,
-                limit: None,
-            },
-        )
-        .unwrap();
-        let next_page: PagedGatewayResponse = from_binary(&next_page).unwrap();
-        if !next_page.nodes.is_empty() {
-            panic!("we didn't manage to get all gateways in a single query")
-        }
-    }
-    page.nodes
-}
@@ -17,13 +17,13 @@ crate-type = ["cdylib", "rlib"]
 library = []

 [dependencies]
-cw-utils = { workspace = true }
-cw2 = { workspace = true }
-cw3 = { workspace = true }
-cw3-fixed-multisig = { workspace = true, features = ["library"] }
-cw4 = { workspace = true }
-cw-storage-plus = { workspace = true }
-cosmwasm-std = { workspace = true }
+cw-utils = { version = "0.13.4" }
+cw2 = { version = "0.13.4" }
+cw3 = { version = "0.13.4" }
+cw3-fixed-multisig = { version = "0.13.4", features = ["library"] }
+cw4 = { version = "0.13.4" }
+cw-storage-plus = { version = "0.13.4" }
+cosmwasm-std = { version = "1.0.0" }
 schemars = "0.8.1"
 serde = { version = "1.0.103", default-features = false, features = ["derive"] }

@@ -33,4 +33,4 @@ nym-multisig-contract-common = { path= "../../../common/cosmwasm-smart-contracts
 [dev-dependencies]
 cosmwasm-schema = { version = "1.0.0" }
 cw4-group = { path = "../cw4-group", version = "0.13.4" }
-cw-multi-test = { workspace = true }
+cw-multi-test = { version = "0.13.4" }
@@ -26,15 +26,15 @@ library = []
 [dependencies]
 nym-group-contract-common = { path = "../../../common/cosmwasm-smart-contracts/group-contract" }

-cw-utils = { workspace = true }
-cw2 = { workspace = true }
-cw4 = { workspace = true }
-cw-controllers = { workspace = true }
-cw-storage-plus = { workspace = true }
-cosmwasm-std = { workspace = true }
+cw-utils = { version = "0.13.4" }
+cw2 = { version = "0.13.4" }
+cw4 = { version = "0.13.4" }
+cw-controllers = { version = "0.13.4" }
+cw-storage-plus = { version = "0.13.4" }
+cosmwasm-std = { version = "1.0.0" }
 schemars = "0.8.1"
 serde = { version = "1.0.103", default-features = false, features = ["derive"] }
 thiserror = { version = "1.0.23" }

 [dev-dependencies]
-cosmwasm-schema = { workspace = true }
+cosmwasm-schema = { version = "1.0.0" }
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
pierre	f3279ab3da	fix: remove dead code	2023-03-20 12:37:58 +01:00
pierre	8f5e6992c1	refactor(nc-mobile): adjust ui	2023-03-20 12:25:08 +01:00
pierre	76a53c8ac9	feat(nc-mobile): select service provider ui	2023-03-20 11:09:19 +01:00
Jędrzej Stuczyński	7ff0becf72	replaced usage of 'serde_json' in mixnet contract in favour of 'serde_json_wasm' (#3191 ) * replaced usage of 'serde_json' in mixnet contract in favour of 'serde_json_wasm' * using stricter version number	2023-03-17 14:31:38 +00:00
Jon Häggblad	4c2967a733	Delete stray .gitignore file	2023-03-16 15:27:45 +00:00
Jon Häggblad	2b80e5d1c9	Remove leftover file from deleted crate	2023-03-16 12:59:46 +00:00
Jon Häggblad	4e7ff53214	Contract and client support for updating gateway config (#3166 ) * mixnet-contract: add update gateway config * mixnet-contract: tests for updating gateway config * vesting-contract: add update gateway config * validator-client: add update gateway config * wallet: add update_gateway_config * common/commands: add support for setting gateway config * Remove commented out line * Review fixes * Generate ts file for GatewayConfigUpdate type * Add generated GatewayConfigUpdate.ts file	2023-03-16 13:43:56 +01:00
Jon Häggblad	9ec36e49b7	contracts: remove .gitignore with Cargo.lock in it While developing the service-provider-directory contract I ran into issues with the lock file being inconsistent for cosmwasm-std (1.0 vs 1.2) and was hidden due to ignoring the lock file	2023-03-16 12:28:35 +00:00
pierre	dd13073037	docs(connect-android): add build note	2023-03-15 12:29:23 +01:00
Pierre Dommerc	1010df1077	refactor(wallet): ui adjustments (#3182 )	2023-03-15 12:22:00 +01:00
Bogdan-Ștefan Neacşu	9eaf9cf491	Feature/fix resharing (#3139 ) * Compare verified vks against current group instead of initial dealers * Fix various dkg logs * API auto-advance epoch even on corrupt states * Use verified vks as ultimate truth for dealers * Set initial dealers based of verified vk * Extend register period even more * Fix test * Use shares from current epoch * Save initial dealers only when triggering resharing * Fix tests * Backup the last InProgress state too * Reset previous signers that are not initial dealers * Add unit test for bug reproduction * More verbose debug logging * Handle edge case for coconut keypair removal * Update dkg api test * Remove dealings directly for each key * Replacement data is saved only on the first reshare start * More debug logging * On failed DKG, just reset * Clippy fix	2023-03-15 11:16:43 +00:00
pierre	8e96318478	build(connect-android): try to fix fdroid build	2023-03-15 10:25:53 +01:00
Jędrzej Stuczyński	54287666e8	chore: simplify mnemonic zeroize story (#3165 ) * updated bip39 dependency to simplify our zeroize story * Replaced UserPassword wrapper with Zeroizing type alias * fixed wallet-types cosmwasm-std dependency version	2023-03-13 11:29:56 +00:00
Tommy Verrall	6de829163d	Merge pull request #3173 from nymtech/feature/nym-cli-tweak Feature/nym cli tweak	2023-03-13 13:24:13 +02:00
benedettadavico	adb5ed7c30	typo fix	2023-03-13 12:14:14 +01:00
benedettadavico	2b019e57df	merge develop	2023-03-13 12:12:00 +01:00
benedettadavico	30c07712e3	format	2023-03-13 12:03:38 +01:00
benedettadavico	82c92501d9	vesting stuff	2023-03-13 12:01:22 +01:00
benedettadavico	c2a871a1a7	typo	2023-03-10 17:10:27 +01:00
benedettadavico	dfd7bd5889	adding pledge more	2023-03-10 17:10:01 +01:00
Pierre Dommerc	7ff043d8df	Feature/bonding signature UI (#3157 ) * wip * updated gateways 'sign' command * in-wallet verification of mix bonding signature * changed signature of vesting contract trait method * updated wallet bonding endpoints * tauri commands for generating signing payloads * renamed signer to sender * verifying new signatures in the contract * fixed existing mixnet unit tests * unit tests for invalid signatures * fixed other usages of MessageSignature + FromStr * using base58-encoded serialization * removed owner-signature from details response * added ability to construct bonding payloads via nym-cli * removed signature from bonding payload args * moved 'message_type' from 'ContractMessageContent' to 'SignableMessage' * refactor(wallet-rust): rename owner_signature args * feat(wallet-bonding): handle user signature * feat(wallet-bonding): fix bonding * feat(wallet-bonding): fix lint issue * feat(wallet-bonding): ui adjustment * make the location field mandatory for payload signing * feat(wallet-bonding): remove ownersignature field, remove dead code --------- Co-authored-by: Jędrzej Stuczyński <jedrzej.stuczynski@gmail.com> Co-authored-by: Tommy Verrall <tommyvez@protonmail.com>	2023-03-10 15:53:21 +01:00
Jon Häggblad	c904d245d2	Remove old erc20 bandwidth-claim-contract (#3162 )	2023-03-08 13:57:11 +01:00