Added #[serde(default)] on fields we dont care about anymore

set-up inclusion probability

.github/workflows/wasm_client_build.yml

@@ -19,30 +19,27 @@ jobs:
           override: true
           components: rustfmt, clippy
 
-# token credentials (non-coconut) don't work for wasm right now
-#      - uses: actions-rs/cargo@v1
-#        with:
-#          command: build
-#          args: --manifest-path clients/webassembly/Cargo.toml --target wasm32-unknown-unknown
+      - uses: actions-rs/cargo@v1
+        with:
+          command: build
+          args: --manifest-path clients/webassembly/Cargo.toml --target wasm32-unknown-unknown
 
       - uses: actions-rs/cargo@v1
         with:
           command: build
           args: --manifest-path clients/webassembly/Cargo.toml --target wasm32-unknown-unknown --features=coconut
 
-# for some reason this does not seem to work correctly, leave it for later, building is good enough for now
-#      - uses: actions-rs/cargo@v1
-#        with:
-#          command: test
-#          args: --manifest-path clients/webassembly/Cargo.toml --target wasm32-unknown-unknown
+      - uses: actions-rs/cargo@v1
+        with:
+          command: test
+          args: --manifest-path clients/webassembly/Cargo.toml
 
       - uses: actions-rs/cargo@v1
         with:
           command: fmt
           args: --manifest-path clients/webassembly/Cargo.toml -- --check
 
-# for some reason this does not seem to work correctly, leave it for later, building is good enough for now
-#      - uses: actions-rs/cargo@v1
-#        with:
-#          command: clippy
-#          args: --manifest-path clients/webassembly/Cargo.toml --target wasm32-unknown-unknown -- -D warnings
+      - uses: actions-rs/cargo@v1
+        with:
+          command: clippy
+          args: --manifest-path clients/webassembly/Cargo.toml --target wasm32-unknown-unknown -- -D warnings

.github_changelog_generator

@@ -0,0 +1,3 @@
+unreleased=true
+future-release=v0.12.0
+since-tag=v0.11.0

.ruby-version

@@ -0,0 +1 @@
+2.7.5

Cargo.toml

@@ -17,7 +17,6 @@ members = [
     "clients/native/websocket-requests",
     "clients/socks5",
     "clients/tauri-client/src-tauri",
-    "clients/webassembly",
     "common/client-libs/gateway-client",
     "common/client-libs/mixnet-client",
     "common/client-libs/validator-client",
@@ -25,8 +24,10 @@ members = [
     "common/config",
     "common/credentials",
     "common/crypto",
-    "common/erc20-bridge-contract",
-    "common/mixnet-contract",
+    "common/bandwidth-claim-contract",
+    "common/cosmwasm-smart-contracts/contracts-common",
+    "common/cosmwasm-smart-contracts/mixnet-contract",
+    "common/cosmwasm-smart-contracts/vesting-contract",
     "common/mixnode-common",
     "common/network-defaults",
     "common/nonexhaustive-delayqueue",
@@ -52,12 +53,12 @@ members = [
     "mixnode",
     "service-providers/network-requester",
     "validator-api",
+    "validator-api/validator-api-requests",
 ]
 
 default-members = [
     "clients/native",
     "clients/socks5",
-#    "clients/webassembly",
     "gateway",
     "service-providers/network-requester",
     "mixnode",
@@ -65,4 +66,4 @@ default-members = [
     "explorer-api",
 ]
 
-exclude = ["explorer", "contracts", "tokenomics-py"]
+exclude = ["explorer", "contracts", "tokenomics-py", "clients/webassembly"]

Makefile

@@ -1,25 +1,36 @@
-all: clippy test fmt
-clippy: clippy-main clippy-contracts clippy-wallet
+all: clippy-all test fmt
+happy: clippy-happy test fmt
+clippy-all: clippy-all-main clippy-all-contracts clippy-all-wallet
+clippy-happy: clippy-happy-main clippy-happy-contracts clippy-happy-wallet
 test: test-main test-contracts test-wallet
 fmt: fmt-main fmt-contracts fmt-wallet
 
-clippy-main:
+clippy-happy-main:
 	cargo clippy
 
-clippy-contracts:
-	cargo clippy --manifest-path contracts/Cargo.toml
+clippy-happy-contracts:
+	cargo clippy --manifest-path contracts/Cargo.toml --target wasm32-unknown-unknown
 
-clippy-wallet: 
+clippy-happy-wallet: 
 	cargo clippy --manifest-path nym-wallet/Cargo.toml
 
+clippy-all-main:
+	cargo clippy --all-features -- -D warnings 
+
+clippy-all-contracts:
+	cargo clippy --manifest-path contracts/Cargo.toml --all-features --target wasm32-unknown-unknown -- -D warnings
+
+clippy-all-wallet: 
+	cargo clippy --manifest-path nym-wallet/Cargo.toml --all-features -- -D warnings
+
 test-main:
-	cargo test
+	cargo test --all-features
 
 test-contracts:
-	cargo test --manifest-path contracts/Cargo.toml
+	cargo test --manifest-path contracts/Cargo.toml --all-features
 
 test-wallet:
-	cargo test --manifest-path nym-wallet/Cargo.toml
+	cargo test --manifest-path nym-wallet/Cargo.toml --all-features
 
 fmt-main:
 	cargo fmt --all
@@ -29,3 +40,6 @@ fmt-contracts:
 
 fmt-wallet:
 	cargo fmt --manifest-path nym-wallet/Cargo.toml --all
+
+wasm:
+	RUSTFLAGS='-C link-arg=-s' cargo build --manifest-path contracts/Cargo.toml --release --target wasm32-unknown-unknown

README.md

@@ -21,7 +21,8 @@ The platform is composed of multiple Rust crates. Top-level executable binary cr
 
 ### Building
 
-Platform build instructions are available on [our docs site](https://nymtech.net/docs/0.11.0/overview/index/).
+Platform build instructions are available on [our docs site](https://nymtech.net/docs/stable/run-nym-nodes/build-nym).
+Wallet build instructions are also available on [our docs site](https://nymtech.net/docs/stable/nym-apps/wallet#for-developers).
 
 ### Developing
 
@@ -40,13 +41,13 @@ Node, node operator and delegator rewards are determined according to the princi
 |<img src="https://render.githubusercontent.com/render/math?math=R">|global share of rewards available, starts at 2% of the reward pool. 
 |<img src="https://render.githubusercontent.com/render/math?math=R_{i}">|node reward for mixnode `i`.
 |<img src="https://render.githubusercontent.com/render/math?math=\sigma_{i}">|ratio of total node stake (node bond + all delegations) to the token circulating supply.
-|<img src="https://render.githubusercontent.com/render/math?math=\lambda_{i}">|ratio of stake operator has plaged to their node to the token circulating supply.
-|<img src="https://render.githubusercontent.com/render/math?math=\omega_{i}">|fraction of total effort undertaken by node `i`, set to `1/k` in testnet Milhon.
-|<img src="https://render.githubusercontent.com/render/math?math=k">|number of nodes stakeholders are incentivised to create, set by the validators, a matter of governance. Currently determined by the `active set` size, and set to 5000 in testnet Milhon.
+|<img src="https://render.githubusercontent.com/render/math?math=\lambda_{i}">|ratio of stake operator has pledged to their node to the token circulating supply.
+|<img src="https://render.githubusercontent.com/render/math?math=\omega_{i}">|fraction of total effort undertaken by node `i`, set to `1/k`.
+|<img src="https://render.githubusercontent.com/render/math?math=k">|number of nodes stakeholders are incentivised to create, set by the validators, a matter of governance. Currently determined by the `reward set` size, and set to 720 in testnet Sandbox.
 |<img src="https://render.githubusercontent.com/render/math?math=\alpha">|Sybil attack resistance parameter - the higher this parameter is set the stronger the reduction in competitivness gets for a Sybil attacker.
-|<img src="https://render.githubusercontent.com/render/math?math=PM_{i}">|declared profit margin of operator `i`, defaults to 10% in testnet Milhon.
+|<img src="https://render.githubusercontent.com/render/math?math=PM_{i}">|declared profit margin of operator `i`, defaults to 10% in.
 |<img src="https://render.githubusercontent.com/render/math?math=PF_{i}">|uptime of node `i`, scaled to 0 - 1, for the rewarding epoch
-|<img src="https://render.githubusercontent.com/render/math?math=PP_{i}">|cost of operating node `i` for the duration of the rewarding eopoch, set to 40 Nym for testnet Milhon.
+|<img src="https://render.githubusercontent.com/render/math?math=PP_{i}">|cost of operating node `i` for the duration of the rewarding eopoch, set to 40 NYMT.
 
 Node reward for node `i` is determined as:
 

clients/client-core/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "client-core"
-version = "0.11.0"
+version = "0.12.0"
 authors = ["Dave Hrycyszyn <futurechimp@users.noreply.github.com>"]
 edition = "2018"
 

clients/client-core/src/client/cover_traffic_stream.rs

@@ -13,7 +13,6 @@ use nymsphinx::utils::sample_poisson_duration;
 use rand::{rngs::OsRng, CryptoRng, Rng};
 use std::pin::Pin;
 use std::sync::Arc;
-use tokio::runtime::Handle;
 use tokio::task::JoinHandle;
 use tokio::time;
 
@@ -165,8 +164,8 @@ impl LoopCoverTrafficStream<OsRng> {
         }
     }
 
-    pub fn start(mut self, handle: &Handle) -> JoinHandle<()> {
-        handle.spawn(async move {
+    pub fn start(mut self) -> JoinHandle<()> {
+        tokio::spawn(async move {
             self.run().await;
         })
     }

clients/client-core/src/client/key_manager.rs

@@ -79,9 +79,9 @@ impl KeyManager {
             ))?;
 
         let gateway_shared_key: SharedKeys =
-            pemstore::load_key(&client_pathfinder.gateway_shared_key().to_owned())?;
+            pemstore::load_key(client_pathfinder.gateway_shared_key())?;
 
-        let ack_key: AckKey = pemstore::load_key(&client_pathfinder.ack_key().to_owned())?;
+        let ack_key: AckKey = pemstore::load_key(client_pathfinder.ack_key())?;
 
         // TODO: ack key is never stored so it is generated now. But perhaps it should be stored
         // after all for consistency sake?

clients/client-core/src/client/mix_traffic.rs

@@ -6,7 +6,6 @@ use futures::StreamExt;
 use gateway_client::GatewayClient;
 use log::*;
 use nymsphinx::forwarding::packet::MixPacket;
-use tokio::runtime::Handle;
 use tokio::task::JoinHandle;
 
 pub type BatchMixMessageSender = mpsc::UnboundedSender<Vec<MixPacket>>;
@@ -72,8 +71,8 @@ impl MixTrafficController {
         }
     }
 
-    pub fn start(mut self, handle: &Handle) -> JoinHandle<()> {
-        handle.spawn(async move {
+    pub fn start(mut self) -> JoinHandle<()> {
+        tokio::spawn(async move {
             self.run().await;
         })
     }

clients/client-core/src/client/real_messages_control/mod.rs

@@ -22,7 +22,6 @@ use nymsphinx::addressing::clients::Recipient;
 use rand::{rngs::OsRng, CryptoRng, Rng};
 use std::sync::Arc;
 use std::time::Duration;
-use tokio::runtime::Handle;
 use tokio::task::JoinHandle;
 
 mod acknowledgement_control;
@@ -170,10 +169,8 @@ impl RealMessagesController<OsRng> {
         self.ack_control = Some(ack_control_fut.await.unwrap());
     }
 
-    // &Handle is only passed for consistency sake with other client modules, but I think
-    // when we get to refactoring, we should apply gateway approach and make it implicit
-    pub fn start(mut self, handle: &Handle) -> JoinHandle<Self> {
-        handle.spawn(async move {
+    pub fn start(mut self) -> JoinHandle<Self> {
+        tokio::spawn(async move {
             self.run().await;
             self
         })

clients/client-core/src/client/received_buffer.rs

@@ -15,7 +15,6 @@ use nymsphinx::params::{ReplySurbEncryptionAlgorithm, ReplySurbKeyDigestAlgorith
 use nymsphinx::receiver::{MessageReceiver, MessageRecoveryError, ReconstructedMessage};
 use std::collections::HashSet;
 use std::sync::Arc;
-use tokio::runtime::Handle;
 use tokio::task::JoinHandle;
 
 // Buffer Requests to say "hey, send any reconstructed messages to this channel"
@@ -291,8 +290,8 @@ impl RequestReceiver {
         }
     }
 
-    fn start(mut self, handle: &Handle) -> JoinHandle<()> {
-        handle.spawn(async move {
+    fn start(mut self) -> JoinHandle<()> {
+        tokio::spawn(async move {
             while let Some(request) = self.query_receiver.next().await {
                 match request {
                     ReceivedBufferMessage::ReceiverAnnounce(sender) => {
@@ -322,8 +321,8 @@ impl FragmentedMessageReceiver {
             mixnet_packet_receiver,
         }
     }
-    fn start(mut self, handle: &Handle) -> JoinHandle<()> {
-        handle.spawn(async move {
+    fn start(mut self) -> JoinHandle<()> {
+        tokio::spawn(async move {
             while let Some(new_messages) = self.mixnet_packet_receiver.next().await {
                 self.received_buffer.handle_new_received(new_messages).await;
             }
@@ -355,9 +354,9 @@ impl ReceivedMessagesBufferController {
         }
     }
 
-    pub fn start(self, handle: &Handle) {
+    pub fn start(self) {
         // TODO: should we do anything with JoinHandle(s) returned by start methods?
-        self.fragmented_message_receiver.start(handle);
-        self.request_receiver.start(handle);
+        self.fragmented_message_receiver.start();
+        self.request_receiver.start();
     }
 }

clients/client-core/src/client/reply_key_storage.rs

@@ -59,7 +59,7 @@ impl ReplyKeyStorage {
     ) -> Result<(), ReplyKeyStorageError> {
         let digest = encryption_key.compute_digest();
 
-        let insertion_result = match self.db.insert(digest.to_vec(), encryption_key.to_bytes()) {
+        let insertion_result = match self.db.insert(digest, encryption_key.to_bytes()) {
             Err(e) => Err(ReplyKeyStorageError::DbWriteError(e)),
             Ok(existing_key) => {
                 if existing_key.is_some() {
@@ -79,7 +79,7 @@ impl ReplyKeyStorage {
         &self,
         key_digest: EncryptionKeyDigest,
     ) -> Result<Option<SurbEncryptionKey>, ReplyKeyStorageError> {
-        let removal_result = match self.db.remove(&key_digest.to_vec()) {
+        let removal_result = match self.db.remove(key_digest) {
             Err(e) => Err(ReplyKeyStorageError::DbReadError(e)),
             Ok(existing_key) => {
                 Ok(existing_key.map(|existing_key| self.read_encryption_key(existing_key)))

clients/client-core/src/client/topology_control.rs

@@ -10,7 +10,6 @@ use std::ops::Deref;
 use std::sync::Arc;
 use std::time;
 use std::time::Duration;
-use tokio::runtime::Handle;
 use tokio::sync::{RwLock, RwLockReadGuard};
 use tokio::task::JoinHandle;
 use topology::{nym_topology_from_bonds, NymTopology};
@@ -304,8 +303,8 @@ impl TopologyRefresher {
         self.topology_accessor.is_routable().await
     }
 
-    pub fn start(mut self, handle: &Handle) -> JoinHandle<()> {
-        handle.spawn(async move {
+    pub fn start(mut self) -> JoinHandle<()> {
+        tokio::spawn(async move {
             loop {
                 tokio::time::sleep(self.refresh_rate).await;
                 self.refresh().await;

clients/client-core/src/config/mod.rs

@@ -117,6 +117,10 @@ impl<T: NymConfig> Config<T> {
         self.client.id = id;
     }
 
+    pub fn with_testnet_mode(&mut self, testnet_mode: bool) {
+        self.client.testnet_mode = testnet_mode;
+    }
+
     pub fn with_gateway_id<S: Into<String>>(&mut self, id: S) {
         self.client.gateway_id = id.into();
     }
@@ -153,6 +157,10 @@ impl<T: NymConfig> Config<T> {
         self.client.id.clone()
     }
 
+    pub fn get_testnet_mode(&self) -> bool {
+        self.client.testnet_mode
+    }
+
     pub fn get_nym_root_directory(&self) -> PathBuf {
         self.client.nym_root_directory.clone()
     }
@@ -273,6 +281,11 @@ pub struct Client<T> {
     /// ID specifies the human readable ID of this particular client.
     id: String,
 
+    /// Indicates whether this client is running in a testnet mode, thus attempting
+    /// to claim bandwidth without presenting bandwidth credentials.
+    #[serde(default)]
+    testnet_mode: bool,
+
     /// Addresses to APIs running on validator from which the client gets the view of the network.
     validator_api_urls: Vec<Url>,
 
@@ -335,6 +348,7 @@ impl<T: NymConfig> Default for Client<T> {
         Client {
             version: env!("CARGO_PKG_VERSION").to_string(),
             id: "".to_string(),
+            testnet_mode: false,
             validator_api_urls: default_api_endpoints(),
             private_identity_key_file: Default::default(),
             public_identity_key_file: Default::default(),

clients/native/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "nym-client"
-version = "0.11.0"
+version = "0.12.1"
 authors = ["Dave Hrycyszyn <futurechimp@users.noreply.github.com>", "Jędrzej Stuczyński <andrew@nymtech.net>"]
 edition = "2018"
 rust-version = "1.56"
@@ -48,6 +48,7 @@ network-defaults = { path = "../../common/network-defaults" }
 
 [features]
 coconut = ["coconut-interface", "credentials", "gateway-requests/coconut", "gateway-client/coconut"]
+eth = []
 
 [dev-dependencies]
 serde_json = "1.0" # for the "textsend" example

clients/native/examples/websocket_binarysend.rs

@@ -35,7 +35,7 @@ async fn send_file_with_reply() {
     let (mut ws_stream, _) = connect_async(uri).await.unwrap();
 
     let recipient = get_self_address(&mut ws_stream).await;
-    println!("our full address is: {}", recipient.to_string());
+    println!("our full address is: {}", recipient);
 
     let read_data = std::fs::read("examples/dummy_file").unwrap();
 
@@ -83,7 +83,7 @@ async fn send_file_without_reply() {
     let (mut ws_stream, _) = connect_async(uri).await.unwrap();
 
     let recipient = get_self_address(&mut ws_stream).await;
-    println!("our full address is: {}", recipient.to_string());
+    println!("our full address is: {}", recipient);
 
     let read_data = std::fs::read("examples/dummy_file").unwrap();
 

clients/native/examples/websocket_textsend.rs

@@ -36,7 +36,7 @@ async fn send_text_with_reply() {
     let (mut ws_stream, _) = connect_async(uri).await.unwrap();
 
     let recipient = get_self_address(&mut ws_stream).await;
-    println!("our full address is: {}", recipient.to_string());
+    println!("our full address is: {}", recipient);
 
     let send_request = json!({
         "type" : "send",
@@ -76,7 +76,7 @@ async fn send_text_without_reply() {
     let (mut ws_stream, _) = connect_async(uri).await.unwrap();
 
     let recipient = get_self_address(&mut ws_stream).await;
-    println!("our full address is: {}", recipient.to_string());
+    println!("our full address is: {}", recipient);
 
     let send_request = json!({
         "type" : "send",

clients/native/src/client/config/template.rs

@@ -5,7 +5,7 @@ pub(crate) fn config_template() -> &'static str {
     // While using normal toml marshalling would have been way simpler with less overhead,
     // I think it's useful to have comments attached to the saved config file to explain behaviour of
     // particular fields.
-    // Note: any changes to the template must be reflected in the appropriate structs in verloc.
+    // Note: any changes to the template must be reflected in the appropriate structs.
     r#"
 # This is a TOML config file.
 # For more information, see https://github.com/toml-lang/toml
@@ -19,6 +19,10 @@ version = '{{ client.version }}'
 # Human readable ID of this particular client.
 id = '{{ client.id }}'
 
+# Indicates whether this client is running in a testnet mode, thus attempting
+# to claim bandwidth without presenting bandwidth credentials.
+testnet_mode = {{ client.testnet_mode }}
+
 # Addresses to APIs running on validator from which the client gets the view of the network.
 validator_api_urls = [
     {{#each client.validator_api_urls }}

clients/native/src/client/mod.rs

@@ -32,7 +32,6 @@ use nymsphinx::addressing::clients::Recipient;
 use nymsphinx::addressing::nodes::NodeIdentity;
 use nymsphinx::anonymous_replies::ReplySurb;
 use nymsphinx::receiver::ReconstructedMessage;
-use tokio::runtime::Runtime;
 
 use crate::client::config::{Config, SocketType};
 use crate::websocket;
@@ -44,11 +43,6 @@ pub struct NymClient {
     /// key filepaths, etc.
     config: Config,
 
-    /// Tokio runtime used for futures execution.
-    // TODO: JS: Personally I think I prefer the implicit way of using it that we've done with the
-    // gateway.
-    runtime: Runtime,
-
     /// KeyManager object containing smart pointers to all relevant keys used by the client.
     key_manager: KeyManager,
 
@@ -68,7 +62,6 @@ impl NymClient {
         let key_manager = KeyManager::load_keys(&pathfinder).expect("failed to load stored keys");
 
         NymClient {
-            runtime: Runtime::new().unwrap(),
             config,
             key_manager,
             input_tx: None,
@@ -94,9 +87,6 @@ impl NymClient {
         mix_tx: BatchMixMessageSender,
     ) {
         info!("Starting loop cover traffic stream...");
-        // we need to explicitly enter runtime due to "next_delay: time::delay_for(Default::default())"
-        // set in the constructor which HAS TO be called within context of a tokio runtime
-        let _guard = self.runtime.enter();
 
         LoopCoverTrafficStream::new(
             self.key_manager.ack_key(),
@@ -109,7 +99,7 @@ impl NymClient {
             self.as_mix_recipient(),
             topology_accessor,
         )
-        .start(self.runtime.handle());
+        .start();
     }
 
     fn start_real_traffic_controller(
@@ -131,10 +121,6 @@ impl NymClient {
         );
 
         info!("Starting real traffic stream...");
-        // we need to explicitly enter runtime due to "next_delay: time::delay_for(Default::default())"
-        // set in the constructor [of OutQueueControl] which HAS TO be called within context of a tokio runtime
-        // When refactoring this restriction should definitely be removed.
-        let _guard = self.runtime.enter();
 
         RealMessagesController::new(
             controller_config,
@@ -144,7 +130,7 @@ impl NymClient {
             topology_accessor,
             reply_key_storage,
         )
-        .start(self.runtime.handle());
+        .start();
     }
 
     // buffer controlling all messages fetched from provider
@@ -162,10 +148,10 @@ impl NymClient {
             mixnet_receiver,
             reply_key_storage,
         )
-        .start(self.runtime.handle())
+        .start()
     }
 
-    fn start_gateway_client(
+    async fn start_gateway_client(
         &mut self,
         mixnet_message_sender: MixnetMessageSender,
         ack_sender: AcknowledgementSender,
@@ -182,43 +168,44 @@ impl NymClient {
         let gateway_identity = identity::PublicKey::from_base58_string(gateway_id)
             .expect("provided gateway id is invalid!");
 
-        self.runtime.block_on(async {
-            #[cfg(feature = "coconut")]
-            let bandwidth_controller = BandwidthController::new(
-                self.config.get_base().get_validator_api_endpoints(),
-                *self.key_manager.identity_keypair().public_key(),
-            );
-            #[cfg(not(feature = "coconut"))]
-            let bandwidth_controller = BandwidthController::new(
-                self.config.get_base().get_eth_endpoint(),
-                self.config.get_base().get_eth_private_key(),
-                self.config.get_base().get_backup_bandwidth_token_keys_dir(),
-            )
-            .expect("Could not create bandwidth controller");
+        #[cfg(feature = "coconut")]
+        let bandwidth_controller = BandwidthController::new(
+            self.config.get_base().get_validator_api_endpoints(),
+            *self.key_manager.identity_keypair().public_key(),
+        );
+        #[cfg(not(feature = "coconut"))]
+        let bandwidth_controller = BandwidthController::new(
+            self.config.get_base().get_eth_endpoint(),
+            self.config.get_base().get_eth_private_key(),
+            self.config.get_base().get_backup_bandwidth_token_keys_dir(),
+        )
+        .expect("Could not create bandwidth controller");
 
-            let mut gateway_client = GatewayClient::new(
-                gateway_address,
-                self.key_manager.identity_keypair(),
-                gateway_identity,
-                Some(self.key_manager.gateway_shared_key()),
-                mixnet_message_sender,
-                ack_sender,
-                self.config.get_base().get_gateway_response_timeout(),
-                Some(bandwidth_controller),
-            );
+        let mut gateway_client = GatewayClient::new(
+            gateway_address,
+            self.key_manager.identity_keypair(),
+            gateway_identity,
+            Some(self.key_manager.gateway_shared_key()),
+            mixnet_message_sender,
+            ack_sender,
+            self.config.get_base().get_gateway_response_timeout(),
+            Some(bandwidth_controller),
+        );
 
-            gateway_client
-                .authenticate_and_start()
-                .await
-                .expect("could not authenticate and start up the gateway connection");
+        if self.config.get_base().get_testnet_mode() {
+            gateway_client.set_testnet_mode(true)
+        }
+        gateway_client
+            .authenticate_and_start()
+            .await
+            .expect("could not authenticate and start up the gateway connection");
 
-            gateway_client
-        })
+        gateway_client
     }
 
     // future responsible for periodically polling directory server and updating
     // the current global view of topology
-    fn start_topology_refresher(&mut self, topology_accessor: TopologyAccessor) {
+    async fn start_topology_refresher(&mut self, topology_accessor: TopologyAccessor) {
         let topology_refresher_config = TopologyRefresherConfig::new(
             self.config.get_base().get_validator_api_endpoints(),
             self.config.get_base().get_topology_refresh_rate(),
@@ -229,13 +216,10 @@ impl NymClient {
         // before returning, block entire runtime to refresh the current network view so that any
         // components depending on topology would see a non-empty view
         info!("Obtaining initial network topology");
-        self.runtime.block_on(topology_refresher.refresh());
+        topology_refresher.refresh().await;
 
         // TODO: a slightly more graceful termination here
-        if !self
-            .runtime
-            .block_on(topology_refresher.is_topology_routable())
-        {
+        if !topology_refresher.is_topology_routable().await {
             panic!(
                 "The current network topology seem to be insufficient to route any packets through\
                 - check if enough nodes and a gateway are online"
@@ -243,7 +227,7 @@ impl NymClient {
         }
 
         info!("Starting topology refresher...");
-        topology_refresher.start(self.runtime.handle());
+        topology_refresher.start();
     }
 
     // controller for sending sphinx packets to mixnet (either real traffic or cover traffic)
@@ -256,7 +240,7 @@ impl NymClient {
         gateway_client: GatewayClient,
     ) {
         info!("Starting mix traffic controller...");
-        MixTrafficController::new(mix_rx, gateway_client).start(self.runtime.handle());
+        MixTrafficController::new(mix_rx, gateway_client).start();
     }
 
     fn start_websocket_listener(
@@ -269,8 +253,7 @@ impl NymClient {
         let websocket_handler =
             websocket::Handler::new(msg_input, buffer_requester, self.as_mix_recipient());
 
-        websocket::Listener::new(self.config.get_listening_port())
-            .start(self.runtime.handle(), websocket_handler);
+        websocket::Listener::new(self.config.get_listening_port()).start(websocket_handler);
     }
 
     /// EXPERIMENTAL DIRECT RUST API
@@ -317,9 +300,9 @@ impl NymClient {
     }
 
     /// blocking version of `start` method. Will run forever (or until SIGINT is sent)
-    pub fn run_forever(&mut self) {
-        self.start();
-        if let Err(e) = self.runtime.block_on(tokio::signal::ctrl_c()) {
+    pub async fn run_forever(&mut self) {
+        self.start().await;
+        if let Err(e) = tokio::signal::ctrl_c().await {
             error!(
                 "There was an error while capturing SIGINT - {:?}. We will terminate regardless",
                 e
@@ -331,7 +314,7 @@ impl NymClient {
         );
     }
 
-    pub fn start(&mut self) {
+    pub async fn start(&mut self) {
         info!("Starting nym client");
         // channels for inter-component communication
         // TODO: make the channels be internally created by the relevant components
@@ -363,14 +346,17 @@ impl NymClient {
 
         // the components are started in very specific order. Unless you know what you are doing,
         // do not change that.
-        self.start_topology_refresher(shared_topology_accessor.clone());
+        self.start_topology_refresher(shared_topology_accessor.clone())
+            .await;
         self.start_received_messages_buffer_controller(
             received_buffer_request_receiver,
             mixnet_messages_receiver,
             reply_key_storage.clone(),
         );
 
-        let gateway_client = self.start_gateway_client(mixnet_messages_sender, ack_sender);
+        let gateway_client = self
+            .start_gateway_client(mixnet_messages_sender, ack_sender)
+            .await;
 
         self.start_mix_traffic_controller(sphinx_message_receiver, gateway_client);
         self.start_real_traffic_controller(

clients/native/src/commands/init.rs

@@ -31,6 +31,12 @@ use url::Url;
 
 use crate::client::config::Config;
 use crate::commands::override_config;
+#[cfg(feature = "eth")]
+#[cfg(not(feature = "coconut"))]
+use crate::commands::{
+    DEFAULT_ETH_ENDPOINT, DEFAULT_ETH_PRIVATE_KEY, ETH_ENDPOINT_ARG_NAME, ETH_PRIVATE_KEY_ARG_NAME,
+    TESTNET_MODE_ARG_NAME,
+};
 
 pub fn command_args<'a, 'b>() -> clap::App<'a, 'b> {
     let app = App::new("init")
@@ -66,18 +72,28 @@ pub fn command_args<'a, 'b>() -> clap::App<'a, 'b> {
             .hidden(true) // this will prevent this flag from being displayed in `--help`
             .help("Mostly debug-related option to increase default traffic rate so that you would not need to modify config post init")
         );
+    #[cfg(feature = "eth")]
     #[cfg(not(feature = "coconut"))]
         let app = app
-        .arg(Arg::with_name("eth_endpoint")
-            .long("eth_endpoint")
-            .help("URL of an Ethereum full node that we want to use for getting bandwidth tokens from ERC20 tokens")
+        .arg(
+            Arg::with_name(TESTNET_MODE_ARG_NAME)
+                .long(TESTNET_MODE_ARG_NAME)
+                .help("Set this client to work in a testnet mode that would attempt to use gateway without bandwidth credential requirement. If this value is set, --eth_endpoint and --eth_private_key don't need to be set.")
+                .conflicts_with_all(&[ETH_ENDPOINT_ARG_NAME, ETH_PRIVATE_KEY_ARG_NAME])
+        )
+        .arg(Arg::with_name(ETH_ENDPOINT_ARG_NAME)
+            .long(ETH_ENDPOINT_ARG_NAME)
+            .help("URL of an Ethereum full node that we want to use for getting bandwidth tokens from ERC20 tokens. If you don't want to set this value, use --testnet-mode instead")
             .takes_value(true)
+            .default_value_if(TESTNET_MODE_ARG_NAME, None, DEFAULT_ETH_ENDPOINT)
             .required(true))
-        .arg(Arg::with_name("eth_private_key")
-            .long("eth_private_key")
-            .help("Ethereum private key used for obtaining bandwidth tokens from ERC20 tokens")
+        .arg(Arg::with_name(ETH_PRIVATE_KEY_ARG_NAME)
+            .long(ETH_PRIVATE_KEY_ARG_NAME)
+            .help("Ethereum private key used for obtaining bandwidth tokens from ERC20 tokens. If you don't want to set this value, use --testnet-mode instead")
             .takes_value(true)
-            .required(true));
+            .default_value_if(TESTNET_MODE_ARG_NAME, None, DEFAULT_ETH_PRIVATE_KEY)
+            .required(true)
+        );
 
     app
 }
@@ -203,7 +219,7 @@ fn show_address(config: &Config) {
     println!("\nThe address of this client is: {}", client_recipient);
 }
 
-pub fn execute(matches: &ArgMatches) {
+pub async fn execute(matches: ArgMatches<'static>) {
     println!("Initialising client...");
 
     let id = matches.value_of("id").unwrap(); // required for now
@@ -221,7 +237,7 @@ pub fn execute(matches: &ArgMatches) {
 
     // TODO: ideally that should be the last thing that's being done to config.
     // However, we are later further overriding it with gateway id
-    config = override_config(config, matches);
+    config = override_config(config, &matches);
     if matches.is_present("fastmode") {
         config.get_base_mut().set_high_default_traffic_volume();
     }
@@ -234,26 +250,20 @@ pub fn execute(matches: &ArgMatches) {
 
         let chosen_gateway_id = matches.value_of("gateway");
 
-        let registration_fut = async {
-            let gate_details = gateway_details(
-                config.get_base().get_validator_api_endpoints(),
-                chosen_gateway_id,
-            )
-            .await;
-            config
-                .get_base_mut()
-                .with_gateway_id(gate_details.identity_key.to_base58_string());
-            let shared_keys =
-                register_with_gateway(&gate_details, key_manager.identity_keypair()).await;
-            (shared_keys, gate_details.clients_address())
-        };
-
-        // TODO: is there perhaps a way to make it work without having to spawn entire runtime?
-        let rt = tokio::runtime::Runtime::new().unwrap();
-        let (shared_keys, gateway_listener) = rt.block_on(registration_fut);
+        let gateway_details = gateway_details(
+            config.get_base().get_validator_api_endpoints(),
+            chosen_gateway_id,
+        )
+        .await;
         config
             .get_base_mut()
-            .with_gateway_listener(gateway_listener);
+            .with_gateway_id(gateway_details.identity_key.to_base58_string());
+        let shared_keys =
+            register_with_gateway(&gateway_details, key_manager.identity_keypair()).await;
+
+        config
+            .get_base_mut()
+            .with_gateway_listener(gateway_details.clients_address());
         key_manager.insert_gateway_shared_key(shared_keys);
 
         let pathfinder = ClientKeyPathfinder::new_from_config(config.get_base());

clients/native/src/commands/mod.rs

@@ -5,6 +5,18 @@ use crate::client::config::{Config, SocketType};
 use clap::ArgMatches;
 use url::Url;
 
+pub(crate) const TESTNET_MODE_ARG_NAME: &str = "testnet-mode";
+#[cfg(not(feature = "coconut"))]
+pub(crate) const ETH_ENDPOINT_ARG_NAME: &str = "eth_endpoint";
+#[cfg(not(feature = "coconut"))]
+pub(crate) const ETH_PRIVATE_KEY_ARG_NAME: &str = "eth_private_key";
+#[cfg(not(feature = "coconut"))]
+pub(crate) const DEFAULT_ETH_ENDPOINT: &str =
+    "https://rinkeby.infura.io/v3/00000000000000000000000000000000";
+#[cfg(not(feature = "coconut"))]
+pub(crate) const DEFAULT_ETH_PRIVATE_KEY: &str =
+    "0000000000000000000000000000000000000000000000000000000000000001";
+
 pub(crate) mod init;
 pub(crate) mod run;
 pub(crate) mod upgrade;
@@ -44,12 +56,24 @@ pub(crate) fn override_config(mut config: Config, matches: &ArgMatches) -> Confi
     }
 
     #[cfg(not(feature = "coconut"))]
-    if let Some(eth_endpoint) = matches.value_of("eth_endpoint") {
+    if let Some(eth_endpoint) = matches.value_of(ETH_ENDPOINT_ARG_NAME) {
         config.get_base_mut().with_eth_endpoint(eth_endpoint);
+    } else {
+        config
+            .get_base_mut()
+            .with_eth_endpoint(DEFAULT_ETH_ENDPOINT);
     }
     #[cfg(not(feature = "coconut"))]
-    if let Some(eth_private_key) = matches.value_of("eth_private_key") {
+    if let Some(eth_private_key) = matches.value_of(ETH_PRIVATE_KEY_ARG_NAME) {
         config.get_base_mut().with_eth_private_key(eth_private_key);
+    } else {
+        config
+            .get_base_mut()
+            .with_eth_private_key(DEFAULT_ETH_PRIVATE_KEY);
+    }
+
+    if !cfg!(feature = "eth") || matches.is_present(TESTNET_MODE_ARG_NAME) {
+        config.get_base_mut().with_testnet_mode(true)
     }
 
     config

clients/native/src/commands/run.rs

@@ -4,6 +4,9 @@
 use crate::client::config::Config;
 use crate::client::NymClient;
 use crate::commands::override_config;
+#[cfg(feature = "eth")]
+#[cfg(not(feature = "coconut"))]
+use crate::commands::{ETH_ENDPOINT_ARG_NAME, ETH_PRIVATE_KEY_ARG_NAME, TESTNET_MODE_ARG_NAME};
 use clap::{App, Arg, ArgMatches};
 use config::NymConfig;
 use log::*;
@@ -39,15 +42,22 @@ pub fn command_args<'a, 'b>() -> clap::App<'a, 'b> {
             .help("Port for the socket (if applicable) to listen on")
             .takes_value(true)
         );
+    #[cfg(feature = "eth")]
     #[cfg(not(feature = "coconut"))]
         let app = app
-        .arg(Arg::with_name("eth_endpoint")
-            .long("eth_endpoint")
-            .help("URL of an Ethereum full node that we want to use for getting bandwidth tokens from ERC20 tokens")
+        .arg(
+            Arg::with_name(TESTNET_MODE_ARG_NAME)
+                .long(TESTNET_MODE_ARG_NAME)
+                .help("Set this client to work in a testnet mode that would attempt to use gateway without bandwidth credential requirement. If this value is set, --eth_endpoint and --eth_private_key don't need to be set.")
+                .conflicts_with_all(&[ETH_ENDPOINT_ARG_NAME, ETH_PRIVATE_KEY_ARG_NAME])
+        )
+        .arg(Arg::with_name(ETH_ENDPOINT_ARG_NAME)
+            .long(ETH_ENDPOINT_ARG_NAME)
+            .help("URL of an Ethereum full node that we want to use for getting bandwidth tokens from ERC20 tokens. If you don't want to set this value, use --testnet-mode instead")
             .takes_value(true))
-        .arg(Arg::with_name("eth_private_key")
-            .long("eth_private_key")
-            .help("Ethereum private key used for obtaining bandwidth tokens from ERC20 tokens")
+        .arg(Arg::with_name(ETH_PRIVATE_KEY_ARG_NAME)
+            .long(ETH_PRIVATE_KEY_ARG_NAME)
+            .help("Ethereum private key used for obtaining bandwidth tokens from ERC20 tokens. If you don't want to set this value, use --testnet-mode instead")
             .takes_value(true));
 
     app
@@ -72,7 +82,7 @@ fn version_check(cfg: &Config) -> bool {
     }
 }
 
-pub fn execute(matches: &ArgMatches) {
+pub async fn execute(matches: ArgMatches<'static>) {
     let id = matches.value_of("id").unwrap();
 
     let mut config = match Config::load_from_file(Some(id)) {
@@ -83,12 +93,12 @@ pub fn execute(matches: &ArgMatches) {
         }
     };
 
-    config = override_config(config, matches);
+    config = override_config(config, &matches);
 
     if !version_check(&config) {
         error!("failed the local version check");
         return;
     }
 
-    NymClient::new(config).run_forever();
+    NymClient::new(config).run_forever().await;
 }

clients/native/src/main.rs

@@ -7,7 +7,8 @@ pub mod client;
 pub mod commands;
 pub mod websocket;
 
-fn main() {
+#[tokio::main]
+async fn main() {
     dotenv::dotenv().ok();
     setup_logging();
     println!("{}", banner());
@@ -22,13 +23,13 @@ fn main() {
         .subcommand(commands::upgrade::command_args())
         .get_matches();
 
-    execute(arg_matches);
+    execute(arg_matches).await;
 }
 
-fn execute(matches: ArgMatches) {
+async fn execute(matches: ArgMatches<'static>) {
     match matches.subcommand() {
-        ("init", Some(m)) => commands::init::execute(m),
-        ("run", Some(m)) => commands::run::execute(m),
+        ("init", Some(m)) => commands::init::execute(m.clone()).await,
+        ("run", Some(m)) => commands::run::execute(m.clone()).await,
         ("upgrade", Some(m)) => commands::upgrade::execute(m),
         _ => println!("{}", usage()),
     }

clients/native/src/websocket/listener.rs

@@ -5,7 +5,6 @@ use super::handler::Handler;
 use log::*;
 use std::{net::SocketAddr, process, sync::Arc};
 use tokio::io::AsyncWriteExt;
-use tokio::runtime;
 use tokio::{sync::Notify, task::JoinHandle};
 
 enum State {
@@ -87,9 +86,9 @@ impl Listener {
         }
     }
 
-    pub(crate) fn start(mut self, rt_handle: &runtime::Handle, handler: Handler) -> JoinHandle<()> {
+    pub(crate) fn start(mut self, handler: Handler) -> JoinHandle<()> {
         info!("Running websocket on {:?}", self.address.to_string());
 
-        rt_handle.spawn(async move { self.run(handler).await })
+        tokio::spawn(async move { self.run(handler).await })
     }
 }

clients/socks5/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "nym-socks5-client"
-version = "0.11.0"
+version = "0.12.1"
 authors = ["Dave Hrycyszyn <futurechimp@users.noreply.github.com>"]
 edition = "2018"
 rust-version = "1.56"
@@ -43,6 +43,7 @@ network-defaults = { path = "../../common/network-defaults" }
 
 [features]
 coconut = ["coconut-interface", "credentials", "gateway-requests/coconut", "gateway-client/coconut"]
+eth = []
 
 [build-dependencies]
 vergen = { version = "5", default-features = false, features = ["build", "git", "rustc", "cargo"] }

clients/socks5/src/client/config/template.rs

@@ -5,7 +5,7 @@ pub(crate) fn config_template() -> &'static str {
     // While using normal toml marshalling would have been way simpler with less overhead,
     // I think it's useful to have comments attached to the saved config file to explain behaviour of
     // particular fields.
-    // Note: any changes to the template must be reflected in the appropriate structs in verloc.
+    // Note: any changes to the template must be reflected in the appropriate structs.
     r#"
 # This is a TOML config file.
 # For more information, see https://github.com/toml-lang/toml
@@ -19,6 +19,10 @@ version = '{{ client.version }}'
 # Human readable ID of this particular client.
 id = '{{ client.id }}'
 
+# Indicates whether this client is running in a testnet mode, thus attempting
+# to claim bandwidth without presenting bandwidth credentials.
+testnet_mode = {{ client.testnet_mode }}
+
 # Addresses to APIs running on validator from which the client gets the view of the network.
 validator_api_urls = [
     {{#each client.validator_api_urls }}

clients/socks5/src/client/mod.rs

@@ -28,7 +28,6 @@ use gateway_client::{
 use log::*;
 use nymsphinx::addressing::clients::Recipient;
 use nymsphinx::addressing::nodes::NodeIdentity;
-use tokio::runtime::Runtime;
 
 use crate::client::config::Config;
 use crate::socks::{
@@ -43,11 +42,6 @@ pub struct NymClient {
     /// key filepaths, etc.
     config: Config,
 
-    /// Tokio runtime used for futures execution.
-    // TODO: JS: Personally I think I prefer the implicit way of using it that we've done with the
-    // gateway.
-    runtime: Runtime,
-
     /// KeyManager object containing smart pointers to all relevant keys used by the client.
     key_manager: KeyManager,
 }
@@ -58,7 +52,6 @@ impl NymClient {
         let key_manager = KeyManager::load_keys(&pathfinder).expect("failed to load stored keys");
 
         NymClient {
-            runtime: Runtime::new().unwrap(),
             config,
             key_manager,
         }
@@ -82,9 +75,6 @@ impl NymClient {
         mix_tx: BatchMixMessageSender,
     ) {
         info!("Starting loop cover traffic stream...");
-        // we need to explicitly enter runtime due to "next_delay: time::delay_for(Default::default())"
-        // set in the constructor which HAS TO be called within context of a tokio runtime
-        let _guard = self.runtime.enter();
 
         LoopCoverTrafficStream::new(
             self.key_manager.ack_key(),
@@ -97,7 +87,7 @@ impl NymClient {
             self.as_mix_recipient(),
             topology_accessor,
         )
-        .start(self.runtime.handle());
+        .start();
     }
 
     fn start_real_traffic_controller(
@@ -119,10 +109,6 @@ impl NymClient {
         );
 
         info!("Starting real traffic stream...");
-        // we need to explicitly enter runtime due to "next_delay: time::delay_for(Default::default())"
-        // set in the constructor [of OutQueueControl] which HAS TO be called within context of a tokio runtime
-        // When refactoring this restriction should definitely be removed.
-        let _guard = self.runtime.enter();
 
         RealMessagesController::new(
             controller_config,
@@ -132,7 +118,7 @@ impl NymClient {
             topology_accessor,
             reply_key_storage,
         )
-        .start(self.runtime.handle());
+        .start();
     }
 
     // buffer controlling all messages fetched from provider
@@ -150,10 +136,10 @@ impl NymClient {
             mixnet_receiver,
             reply_key_storage,
         )
-        .start(self.runtime.handle())
+        .start()
     }
 
-    fn start_gateway_client(
+    async fn start_gateway_client(
         &mut self,
         mixnet_message_sender: MixnetMessageSender,
         ack_sender: AcknowledgementSender,
@@ -170,43 +156,44 @@ impl NymClient {
         let gateway_identity = identity::PublicKey::from_base58_string(gateway_id)
             .expect("provided gateway id is invalid!");
 
-        self.runtime.block_on(async {
-            #[cfg(feature = "coconut")]
-            let bandwidth_controller = BandwidthController::new(
-                self.config.get_base().get_validator_api_endpoints(),
-                *self.key_manager.identity_keypair().public_key(),
-            );
-            #[cfg(not(feature = "coconut"))]
-            let bandwidth_controller = BandwidthController::new(
-                self.config.get_base().get_eth_endpoint(),
-                self.config.get_base().get_eth_private_key(),
-                self.config.get_base().get_backup_bandwidth_token_keys_dir(),
-            )
-            .expect("Could not create bandwidth controller");
+        #[cfg(feature = "coconut")]
+        let bandwidth_controller = BandwidthController::new(
+            self.config.get_base().get_validator_api_endpoints(),
+            *self.key_manager.identity_keypair().public_key(),
+        );
+        #[cfg(not(feature = "coconut"))]
+        let bandwidth_controller = BandwidthController::new(
+            self.config.get_base().get_eth_endpoint(),
+            self.config.get_base().get_eth_private_key(),
+            self.config.get_base().get_backup_bandwidth_token_keys_dir(),
+        )
+        .expect("Could not create bandwidth controller");
 
-            let mut gateway_client = GatewayClient::new(
-                gateway_address,
-                self.key_manager.identity_keypair(),
-                gateway_identity,
-                Some(self.key_manager.gateway_shared_key()),
-                mixnet_message_sender,
-                ack_sender,
-                self.config.get_base().get_gateway_response_timeout(),
-                Some(bandwidth_controller),
-            );
+        let mut gateway_client = GatewayClient::new(
+            gateway_address,
+            self.key_manager.identity_keypair(),
+            gateway_identity,
+            Some(self.key_manager.gateway_shared_key()),
+            mixnet_message_sender,
+            ack_sender,
+            self.config.get_base().get_gateway_response_timeout(),
+            Some(bandwidth_controller),
+        );
 
-            gateway_client
-                .authenticate_and_start()
-                .await
-                .expect("could not authenticate and start up the gateway connection");
+        if self.config.get_base().get_testnet_mode() {
+            gateway_client.set_testnet_mode(true)
+        }
+        gateway_client
+            .authenticate_and_start()
+            .await
+            .expect("could not authenticate and start up the gateway connection");
 
-            gateway_client
-        })
+        gateway_client
     }
 
     // future responsible for periodically polling directory server and updating
     // the current global view of topology
-    fn start_topology_refresher(&mut self, topology_accessor: TopologyAccessor) {
+    async fn start_topology_refresher(&mut self, topology_accessor: TopologyAccessor) {
         let topology_refresher_config = TopologyRefresherConfig::new(
             self.config.get_base().get_validator_api_endpoints(),
             self.config.get_base().get_topology_refresh_rate(),
@@ -217,13 +204,10 @@ impl NymClient {
         // before returning, block entire runtime to refresh the current network view so that any
         // components depending on topology would see a non-empty view
         info!("Obtaining initial network topology");
-        self.runtime.block_on(topology_refresher.refresh());
+        topology_refresher.refresh().await;
 
         // TODO: a slightly more graceful termination here
-        if !self
-            .runtime
-            .block_on(topology_refresher.is_topology_routable())
-        {
+        if !topology_refresher.is_topology_routable().await {
             panic!(
                 "The current network topology seem to be insufficient to route any packets through\
                 - check if enough nodes and a gateway are online"
@@ -231,7 +215,7 @@ impl NymClient {
         }
 
         info!("Starting topology refresher...");
-        topology_refresher.start(self.runtime.handle());
+        topology_refresher.start();
     }
 
     // controller for sending sphinx packets to mixnet (either real traffic or cover traffic)
@@ -244,7 +228,7 @@ impl NymClient {
         gateway_client: GatewayClient,
     ) {
         info!("Starting mix traffic controller...");
-        MixTrafficController::new(mix_rx, gateway_client).start(self.runtime.handle());
+        MixTrafficController::new(mix_rx, gateway_client).start();
     }
 
     fn start_socks5_listener(
@@ -263,14 +247,13 @@ impl NymClient {
             self.config.get_provider_mix_address(),
             self.as_mix_recipient(),
         );
-        self.runtime
-            .spawn(async move { sphinx_socks.serve(msg_input, buffer_requester).await });
+        tokio::spawn(async move { sphinx_socks.serve(msg_input, buffer_requester).await });
     }
 
     /// blocking version of `start` method. Will run forever (or until SIGINT is sent)
-    pub fn run_forever(&mut self) {
-        self.start();
-        if let Err(e) = self.runtime.block_on(tokio::signal::ctrl_c()) {
+    pub async fn run_forever(&mut self) {
+        self.start().await;
+        if let Err(e) = tokio::signal::ctrl_c().await {
             error!(
                 "There was an error while capturing SIGINT - {:?}. We will terminate regardless",
                 e
@@ -282,7 +265,7 @@ impl NymClient {
         );
     }
 
-    pub fn start(&mut self) {
+    pub async fn start(&mut self) {
         info!("Starting nym client");
         // channels for inter-component communication
         // TODO: make the channels be internally created by the relevant components
@@ -314,14 +297,17 @@ impl NymClient {
 
         // the components are started in very specific order. Unless you know what you are doing,
         // do not change that.
-        self.start_topology_refresher(shared_topology_accessor.clone());
+        self.start_topology_refresher(shared_topology_accessor.clone())
+            .await;
         self.start_received_messages_buffer_controller(
             received_buffer_request_receiver,
             mixnet_messages_receiver,
             reply_key_storage.clone(),
         );
 
-        let gateway_client = self.start_gateway_client(mixnet_messages_sender, ack_sender);
+        let gateway_client = self
+            .start_gateway_client(mixnet_messages_sender, ack_sender)
+            .await;
 
         self.start_mix_traffic_controller(sphinx_message_receiver, gateway_client);
         self.start_real_traffic_controller(

clients/socks5/src/commands/init.rs

@@ -29,6 +29,12 @@ use url::Url;
 
 use crate::client::config::Config;
 use crate::commands::override_config;
+#[cfg(feature = "eth")]
+#[cfg(not(feature = "coconut"))]
+use crate::commands::{
+    DEFAULT_ETH_ENDPOINT, DEFAULT_ETH_PRIVATE_KEY, ETH_ENDPOINT_ARG_NAME, ETH_PRIVATE_KEY_ARG_NAME,
+    TESTNET_MODE_ARG_NAME,
+};
 
 pub fn command_args<'a, 'b>() -> clap::App<'a, 'b> {
     let app = App::new("init")
@@ -66,18 +72,28 @@ pub fn command_args<'a, 'b>() -> clap::App<'a, 'b> {
             .hidden(true) // this will prevent this flag from being displayed in `--help`
             .help("Mostly debug-related option to increase default traffic rate so that you would not need to modify config post init")
         );
+    #[cfg(feature = "eth")]
     #[cfg(not(feature = "coconut"))]
         let app = app
-        .arg(Arg::with_name("eth_endpoint")
-            .long("eth_endpoint")
-            .help("URL of an Ethereum full node that we want to use for getting bandwidth tokens from ERC20 tokens")
+        .arg(
+            Arg::with_name(TESTNET_MODE_ARG_NAME)
+                .long(TESTNET_MODE_ARG_NAME)
+                .help("Set this client to work in a testnet mode that would attempt to use gateway without bandwidth credential requirement. If this value is set, --eth_endpoint and --eth_private_key don't need to be set.")
+                .conflicts_with_all(&[ETH_ENDPOINT_ARG_NAME, ETH_PRIVATE_KEY_ARG_NAME])
+        )
+        .arg(Arg::with_name(ETH_ENDPOINT_ARG_NAME)
+            .long(ETH_ENDPOINT_ARG_NAME)
+            .help("URL of an Ethereum full node that we want to use for getting bandwidth tokens from ERC20 tokens. If you don't want to set this value, use --testnet-mode instead")
             .takes_value(true)
+            .default_value_if(TESTNET_MODE_ARG_NAME, None, DEFAULT_ETH_ENDPOINT)
             .required(true))
-        .arg(Arg::with_name("eth_private_key")
-            .long("eth_private_key")
-            .help("Ethereum private key used for obtaining bandwidth tokens from ERC20 tokens")
+        .arg(Arg::with_name(ETH_PRIVATE_KEY_ARG_NAME)
+            .long(ETH_PRIVATE_KEY_ARG_NAME)
+            .help("Ethereum private key used for obtaining bandwidth tokens from ERC20 tokens. If you don't want to set this value, use --testnet-mode instead")
             .takes_value(true)
-            .required(true));
+            .default_value_if(TESTNET_MODE_ARG_NAME, None, DEFAULT_ETH_PRIVATE_KEY)
+            .required(true)
+        );
 
     app
 }
@@ -203,7 +219,7 @@ fn show_address(config: &Config) {
     println!("\nThe address of this client is: {}", client_recipient);
 }
 
-pub fn execute(matches: &ArgMatches) {
+pub async fn execute(matches: ArgMatches<'static>) {
     println!("Initialising client...");
 
     let id = matches.value_of("id").unwrap(); // required for now
@@ -222,7 +238,7 @@ pub fn execute(matches: &ArgMatches) {
 
     // TODO: ideally that should be the last thing that's being done to config.
     // However, we are later further overriding it with gateway id
-    config = override_config(config, matches);
+    config = override_config(config, &matches);
     if matches.is_present("fastmode") {
         config.get_base_mut().set_high_default_traffic_volume();
     }
@@ -235,26 +251,20 @@ pub fn execute(matches: &ArgMatches) {
 
         let chosen_gateway_id = matches.value_of("gateway");
 
-        let registration_fut = async {
-            let gate_details = gateway_details(
-                config.get_base().get_validator_api_endpoints(),
-                chosen_gateway_id,
-            )
-            .await;
-            config
-                .get_base_mut()
-                .with_gateway_id(gate_details.identity_key.to_base58_string());
-            let shared_keys =
-                register_with_gateway(&gate_details, key_manager.identity_keypair()).await;
-            (shared_keys, gate_details.clients_address())
-        };
-
-        // TODO: is there perhaps a way to make it work without having to spawn entire runtime?
-        let rt = tokio::runtime::Runtime::new().unwrap();
-        let (shared_keys, gateway_listener) = rt.block_on(registration_fut);
+        let gateway_details = gateway_details(
+            config.get_base().get_validator_api_endpoints(),
+            chosen_gateway_id,
+        )
+        .await;
         config
             .get_base_mut()
-            .with_gateway_listener(gateway_listener);
+            .with_gateway_id(gateway_details.identity_key.to_base58_string());
+        let shared_keys =
+            register_with_gateway(&gateway_details, key_manager.identity_keypair()).await;
+
+        config
+            .get_base_mut()
+            .with_gateway_listener(gateway_details.clients_address());
         key_manager.insert_gateway_shared_key(shared_keys);
 
         let pathfinder = ClientKeyPathfinder::new_from_config(config.get_base());

clients/socks5/src/commands/mod.rs

@@ -9,6 +9,18 @@ pub(crate) mod init;
 pub(crate) mod run;
 pub(crate) mod upgrade;
 
+pub(crate) const TESTNET_MODE_ARG_NAME: &str = "testnet-mode";
+#[cfg(not(feature = "coconut"))]
+pub(crate) const ETH_ENDPOINT_ARG_NAME: &str = "eth_endpoint";
+#[cfg(not(feature = "coconut"))]
+pub(crate) const ETH_PRIVATE_KEY_ARG_NAME: &str = "eth_private_key";
+#[cfg(not(feature = "coconut"))]
+pub(crate) const DEFAULT_ETH_ENDPOINT: &str =
+    "https://rinkeby.infura.io/v3/00000000000000000000000000000000";
+#[cfg(not(feature = "coconut"))]
+pub(crate) const DEFAULT_ETH_PRIVATE_KEY: &str =
+    "0000000000000000000000000000000000000000000000000000000000000001";
+
 fn parse_validators(raw: &str) -> Vec<Url> {
     raw.split(',')
         .map(|raw_validator| {
@@ -40,12 +52,24 @@ pub(crate) fn override_config(mut config: Config, matches: &ArgMatches) -> Confi
     }
 
     #[cfg(not(feature = "coconut"))]
-    if let Some(eth_endpoint) = matches.value_of("eth_endpoint") {
+    if let Some(eth_endpoint) = matches.value_of(ETH_ENDPOINT_ARG_NAME) {
         config.get_base_mut().with_eth_endpoint(eth_endpoint);
+    } else {
+        config
+            .get_base_mut()
+            .with_eth_endpoint(DEFAULT_ETH_ENDPOINT);
     }
     #[cfg(not(feature = "coconut"))]
-    if let Some(eth_private_key) = matches.value_of("eth_private_key") {
+    if let Some(eth_private_key) = matches.value_of(ETH_PRIVATE_KEY_ARG_NAME) {
         config.get_base_mut().with_eth_private_key(eth_private_key);
+    } else {
+        config
+            .get_base_mut()
+            .with_eth_private_key(DEFAULT_ETH_PRIVATE_KEY);
+    }
+
+    if !cfg!(feature = "eth") || matches.is_present(TESTNET_MODE_ARG_NAME) {
+        config.get_base_mut().with_testnet_mode(true)
     }
 
     config

clients/socks5/src/commands/run.rs

@@ -4,6 +4,9 @@
 use crate::client::config::Config;
 use crate::client::NymClient;
 use crate::commands::override_config;
+#[cfg(feature = "eth")]
+#[cfg(not(feature = "coconut"))]
+use crate::commands::{ETH_ENDPOINT_ARG_NAME, ETH_PRIVATE_KEY_ARG_NAME, TESTNET_MODE_ARG_NAME};
 use clap::{App, Arg, ArgMatches};
 use config::NymConfig;
 use log::*;
@@ -45,15 +48,22 @@ pub fn command_args<'a, 'b>() -> clap::App<'a, 'b> {
             .help("Port for the socket to listen on")
             .takes_value(true)
         );
+    #[cfg(feature = "eth")]
     #[cfg(not(feature = "coconut"))]
     let app = app
-        .arg(Arg::with_name("eth_endpoint")
-            .long("eth_endpoint")
-            .help("URL of an Ethereum full node that we want to use for getting bandwidth tokens from ERC20 tokens")
+        .arg(
+            Arg::with_name(TESTNET_MODE_ARG_NAME)
+                .long(TESTNET_MODE_ARG_NAME)
+                .help("Set this client to work in a testnet mode that would attempt to use gateway without bandwidth credential requirement. If this value is set, --eth_endpoint and --eth_private_key don't need to be set.")
+                .conflicts_with_all(&[ETH_ENDPOINT_ARG_NAME, ETH_PRIVATE_KEY_ARG_NAME])
+        )
+        .arg(Arg::with_name(ETH_ENDPOINT_ARG_NAME)
+            .long(ETH_ENDPOINT_ARG_NAME)
+            .help("URL of an Ethereum full node that we want to use for getting bandwidth tokens from ERC20 tokens. If you don't want to set this value, use --testnet-mode instead")
             .takes_value(true))
-        .arg(Arg::with_name("eth_private_key")
-            .long("eth_private_key")
-            .help("Ethereum private key used for obtaining bandwidth tokens from ERC20 tokens")
+        .arg(Arg::with_name(ETH_PRIVATE_KEY_ARG_NAME)
+            .long(ETH_PRIVATE_KEY_ARG_NAME)
+            .help("Ethereum private key used for obtaining bandwidth tokens from ERC20 tokens. If you don't want to set this value, use --testnet-mode instead")
             .takes_value(true));
 
     app
@@ -78,7 +88,7 @@ fn version_check(cfg: &Config) -> bool {
     }
 }
 
-pub fn execute(matches: &ArgMatches) {
+pub async fn execute(matches: ArgMatches<'static>) {
     let id = matches.value_of("id").unwrap();
 
     let mut config = match Config::load_from_file(Some(id)) {
@@ -89,12 +99,12 @@ pub fn execute(matches: &ArgMatches) {
         }
     };
 
-    config = override_config(config, matches);
+    config = override_config(config, &matches);
 
     if !version_check(&config) {
         error!("failed the local version check");
         return;
     }
 
-    NymClient::new(config).run_forever();
+    NymClient::new(config).run_forever().await;
 }

clients/socks5/src/main.rs

@@ -7,7 +7,8 @@ pub mod client;
 mod commands;
 pub mod socks;
 
-fn main() {
+#[tokio::main]
+async fn main() {
     dotenv::dotenv().ok();
     setup_logging();
     println!("{}", banner());
@@ -22,13 +23,13 @@ fn main() {
         .subcommand(commands::upgrade::command_args())
         .get_matches();
 
-    execute(arg_matches);
+    execute(arg_matches).await;
 }
 
-fn execute(matches: ArgMatches) {
+async fn execute(matches: ArgMatches<'static>) {
     match matches.subcommand() {
-        ("init", Some(m)) => commands::init::execute(m),
-        ("run", Some(m)) => commands::run::execute(m),
+        ("init", Some(m)) => commands::init::execute(m.clone()).await,
+        ("run", Some(m)) => commands::run::execute(m.clone()).await,
         ("upgrade", Some(m)) => commands::upgrade::execute(m),
         _ => println!("{}", usage()),
     }

clients/validator/src/index.ts

@@ -180,8 +180,8 @@ export default class ValidatorClient implements INymClient {
     return this.client.getSybilResistancePercent(this.mixnetContract);
   }
 
-  public async getEpochRewardPercent(): Promise<number> {
-    return this.client.getEpochRewardPercent(this.mixnetContract);
+  public async getIntervalRewardPercent(): Promise<number> {
+    return this.client.getIntervalRewardPercent(this.mixnetContract);
   }
 
   public async getAllNymdMixnodes(): Promise<MixNodeBond[]> {
@@ -433,6 +433,14 @@ export default class ValidatorClient implements INymClient {
     return (this.client as ISigningClient).undelegateFromMixNode(this.mixnetContract, mixIdentity, fee, memo);
   }
 
+  public async updateMixnodeConfig(
+    mixIdentity: string,
+    fee: StdFee | 'auto' | number,
+    profitPercentage: number,
+  ): Promise<ExecuteResult> {
+    return (this.client as ISigningClient).updateMixnodeConfig(this.mixnetContract, mixIdentity, profitPercentage, fee);
+  }
+
   public async updateContractStateParams(
     newParams: ContractStateParams,
     fee?: StdFee | 'auto' | number,
@@ -441,4 +449,4 @@ export default class ValidatorClient implements INymClient {
     this.assertSigning();
     return (this.client as ISigningClient).updateContractStateParams(this.mixnetContract, newParams, fee, memo);
   }
-}
+}

clients/validator/src/nymd-querier.ts

@@ -18,7 +18,6 @@ import {
   PagedGatewayResponse,
   PagedMixDelegationsResponse,
   PagedMixnodeResponse,
-  RewardingIntervalResponse,
   RewardingStatus,
 } from './types';
 
@@ -79,12 +78,6 @@ export default class NymdQuerier implements INymdQuery {
     });
   }
 
-  getCurrentRewardingInterval(mixnetContractAddress: string): Promise<RewardingIntervalResponse> {
-    return this.client.queryContractSmart(mixnetContractAddress, {
-      current_rewarding_interval: {},
-    });
-  }
-
   getAllNetworkDelegationsPaged(
     mixnetContractAddress: string,
     limit?: number,
@@ -155,9 +148,9 @@ export default class NymdQuerier implements INymdQuery {
     });
   }
 
-  getEpochRewardPercent(mixnetContractAddress: string): Promise<number> {
+  getIntervalRewardPercent(mixnetContractAddress: string): Promise<number> {
     return this.client.queryContractSmart(mixnetContractAddress, {
-      get_epoch_reward_percent: {},
+      get_interval_reward_percent: {},
     });
   }
 

clients/validator/src/query-client.ts

@@ -28,7 +28,6 @@ import {
   PagedGatewayResponse,
   PagedMixDelegationsResponse,
   PagedMixnodeResponse,
-  RewardingIntervalResponse,
   RewardingStatus,
 } from './types';
 import ValidatorApiQuerier, { IValidatorApiQuery } from './validator-api-querier';
@@ -63,7 +62,6 @@ export interface INymdQuery {
   ownsMixNode(mixnetContractAddress: string, address: string): Promise<MixOwnershipResponse>;
   ownsGateway(mixnetContractAddress: string, address: string): Promise<GatewayOwnershipResponse>;
   getStateParams(mixnetContractAddress: string): Promise<ContractStateParams>;
-  getCurrentRewardingInterval(mixnetContractAddress: string): Promise<RewardingIntervalResponse>;
 
   getAllNetworkDelegationsPaged(
     mixnetContractAddress: string,
@@ -87,7 +85,7 @@ export interface INymdQuery {
   getLayerDistribution(mixnetContractAddress: string): Promise<LayerDistribution>;
   getRewardPool(mixnetContractAddress: string): Promise<string>;
   getCirculatingSupply(mixnetContractAddress: string): Promise<string>;
-  getEpochRewardPercent(mixnetContractAddress: string): Promise<number>;
+  getIntervalRewardPercent(mixnetContractAddress: string): Promise<number>;
   getSybilResistancePercent(mixnetContractAddress: string): Promise<number>;
   getRewardingStatus(
     mixnetContractAddress: string,
@@ -138,10 +136,6 @@ export default class QueryClient extends CosmWasmClient implements IQueryClient
     return this.nymdQuerier.getStateParams(mixnetContractAddress);
   }
 
-  getCurrentRewardingInterval(mixnetContractAddress: string): Promise<RewardingIntervalResponse> {
-    return this.nymdQuerier.getCurrentRewardingInterval(mixnetContractAddress);
-  }
-
   getAllNetworkDelegationsPaged(
     mixnetContractAddress: string,
     limit?: number,
@@ -184,8 +178,8 @@ export default class QueryClient extends CosmWasmClient implements IQueryClient
     return this.nymdQuerier.getCirculatingSupply(mixnetContractAddress);
   }
 
-  getEpochRewardPercent(mixnetContractAddress: string): Promise<number> {
-    return this.nymdQuerier.getEpochRewardPercent(mixnetContractAddress);
+  getIntervalRewardPercent(mixnetContractAddress: string): Promise<number> {
+    return this.nymdQuerier.getIntervalRewardPercent(mixnetContractAddress);
   }
 
   getSybilResistancePercent(mixnetContractAddress: string): Promise<number> {

clients/validator/src/signing-client.ts

@@ -31,7 +31,6 @@ import {
   PagedGatewayResponse,
   PagedMixDelegationsResponse,
   PagedMixnodeResponse,
-  RewardingIntervalResponse,
   RewardingStatus,
 } from './types';
 import ValidatorApiQuerier from './validator-api-querier';
@@ -178,6 +177,13 @@ export interface ISigningClient extends IQueryClient, ICosmWasmSigning, INymSign
     memo?: string,
   ): Promise<ExecuteResult>;
 
+  updateMixnodeConfig(
+    mixnetContractAddress: string,
+    mixIdentity: string,
+    profitMarginPercent: number,
+    fee: StdFee | 'auto' | number,
+  ): Promise<ExecuteResult>;
+
   updateContractStateParams(
     mixnetContractAddress: string,
     newParams: ContractStateParams,
@@ -250,10 +256,6 @@ export default class SigningClient extends SigningCosmWasmClient implements ISig
     return this.nymdQuerier.getStateParams(mixnetContractAddress);
   }
 
-  getCurrentRewardingInterval(mixnetContractAddress: string): Promise<RewardingIntervalResponse> {
-    return this.nymdQuerier.getCurrentRewardingInterval(mixnetContractAddress);
-  }
-
   getAllNetworkDelegationsPaged(
     mixnetContractAddress: string,
     limit?: number,
@@ -296,8 +298,8 @@ export default class SigningClient extends SigningCosmWasmClient implements ISig
     return this.nymdQuerier.getCirculatingSupply(mixnetContractAddress);
   }
 
-  getEpochRewardPercent(mixnetContractAddress: string): Promise<number> {
-    return this.nymdQuerier.getEpochRewardPercent(mixnetContractAddress);
+  getIntervalRewardPercent(mixnetContractAddress: string): Promise<number> {
+    return this.nymdQuerier.getIntervalRewardPercent(mixnetContractAddress);
   }
 
   getSybilResistancePercent(mixnetContractAddress: string): Promise<number> {
@@ -448,6 +450,20 @@ export default class SigningClient extends SigningCosmWasmClient implements ISig
     );
   }
 
+  updateMixnodeConfig(
+    mixnetContractAddress: string,
+    mixIdentity: string,
+    profitMarginPercent: number,
+    fee: StdFee | 'auto' | number,
+  ): Promise<ExecuteResult> {
+    return this.execute(
+      this.clientAddress,
+      mixnetContractAddress,
+      { update_mixnode_config: { profit_margin_percent: profitMarginPercent, mix_identity: mixIdentity } },
+      fee,
+    );
+  }
+
   updateContractStateParams(
     mixnetContractAddress: string,
     newParams: ContractStateParams,

clients/validator/src/types.ts

@@ -43,12 +43,6 @@ export type ContractStateParams = {
   mixnode_active_set_size: number;
 };
 
-export type RewardingIntervalResponse = {
-  current_rewarding_interval_starting_block: number;
-  current_rewarding_interval_nonce: number;
-  rewarding_in_progress: boolean;
-};
-
 export type LayerDistribution = {
   gateways: number;
   layer1: number;
@@ -135,6 +129,7 @@ export type MixNode = {
   sphinx_key: string;
   identity_key: string;
   version: string;
+  profit_margin_percent: number;
 };
 
 export type GatewayBond = {

clients/webassembly/Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "nym-client-wasm"
 authors = ["Dave Hrycyszyn <futurechimp@users.noreply.github.com>", "Jedrzej Stuczynski <andrew@nymtech.net>"]
-version = "0.11.0"
+version = "0.12.0"
 edition = "2018"
 keywords = ["nym", "sphinx", "wasm", "webassembly", "privacy", "client"]
 license = "Apache-2.0"
@@ -32,7 +32,7 @@ credentials = { path = "../../common/credentials", optional = true }
 crypto = { path = "../../common/crypto" }
 nymsphinx = { path = "../../common/nymsphinx" }
 topology = { path = "../../common/topology" }
-gateway-client = { path = "../../common/client-libs/gateway-client" }
+gateway-client = { path = "../../common/client-libs/gateway-client", default-features = false, features = ["wasm"] }
 validator-client = { path = "../../common/client-libs/validator-client", default-features = false }
 wasm-utils = { path = "../../common/wasm-utils" }
 

clients/webassembly/src/client/mod.rs

@@ -3,7 +3,6 @@
 
 use crypto::asymmetric::{encryption, identity};
 use futures::channel::mpsc;
-use gateway_client::bandwidth::BandwidthController;
 use gateway_client::GatewayClient;
 use nymsphinx::acknowledgements::AckKey;
 use nymsphinx::addressing::clients::Recipient;
@@ -27,6 +26,7 @@ const DEFAULT_GATEWAY_RESPONSE_TIMEOUT: Duration = Duration::from_millis(1_500);
 #[wasm_bindgen]
 pub struct NymClient {
     validator_server: Url,
+    testnet_mode: bool,
 
     // TODO: technically this doesn't need to be an Arc since wasm is run on a single thread
     // however, once we eventually combine this code with the native-client's, it will make things
@@ -72,6 +72,7 @@ impl NymClient {
 
             on_message: None,
             on_gateway_connect: None,
+            testnet_mode: false,
         }
     }
 
@@ -84,6 +85,11 @@ impl NymClient {
         self.on_gateway_connect = Some(on_connect)
     }
 
+    pub fn set_testnet_mode(&mut self, testnet_mode: bool) {
+        console_log!("Setting testnet mode to {}", testnet_mode);
+        self.testnet_mode = testnet_mode;
+    }
+
     fn self_recipient(&self) -> Recipient {
         Recipient::new(
             *self.identity.public_key(),
@@ -101,8 +107,10 @@ impl NymClient {
 
     // Right now it's impossible to have async exported functions to take `&self` rather than self
     pub async fn initial_setup(self) -> Self {
+        let testnet_mode = self.testnet_mode;
+
         #[cfg(feature = "coconut")]
-        let bandwidth_controller = Some(BandwidthController::new(
+        let bandwidth_controller = Some(gateway_client::bandwidth::BandwidthController::new(
             vec![self.validator_server.clone()],
             *self.identity.public_key(),
         ));
@@ -126,6 +134,10 @@ impl NymClient {
             bandwidth_controller,
         );
 
+        if testnet_mode {
+            gateway_client.set_testnet_mode(true)
+        }
+
         gateway_client
             .authenticate_and_start()
             .await

common/bandwidth-claim-contract/Cargo.toml

@@ -1,5 +1,5 @@
 [package]
-name = "erc20-bridge-contract"
+name = "bandwidth-claim-contract"
 version = "0.1.0"
 edition = "2018"
 

common/client-libs/gateway-client/Cargo.toml

@@ -15,6 +15,8 @@ log = "0.4"
 thiserror = "1.0"
 url = "2.2"
 rand = { version = "0.7.3", features = ["wasm-bindgen"] }
+secp256k1 = "0.20.3"
+web3 = { version = "0.17.0", default-features = false }
 
 # internal
 credentials = { path = "../../credentials" }
@@ -36,12 +38,6 @@ features = ["macros", "rt", "net", "sync", "time"]
 [target."cfg(not(target_arch = \"wasm32\"))".dependencies.tokio-tungstenite]
 version = "0.14"
 
-[target."cfg(not(target_arch = \"wasm32\"))".dependencies.secp256k1]
-version = "0.20.3"
-
-[target."cfg(not(target_arch = \"wasm32\"))".dependencies.web3]
-version = "0.17.0"
-
 # wasm-only dependencies
 [target."cfg(target_arch = \"wasm32\")".dependencies.wasm-bindgen]
 version = "0.2"
@@ -70,4 +66,6 @@ features = ["js"]
 #url = "2.1"
 
 [features]
-coconut = ["gateway-requests/coconut", "coconut-interface"]
+coconut = ["gateway-requests/coconut", "coconut-interface"]
+wasm = ["web3/wasm", "web3/http", "web3/signing"]
+default = ["web3/default"]

common/client-libs/gateway-client/src/bandwidth.rs

@@ -203,7 +203,7 @@ impl BandwidthController {
                 &self.eth_private_key,
             )
             .await?;
-        if Some(U64::from(0)) == recipt.status {
+        if Some(U64::from(0u64)) == recipt.status {
             Err(GatewayClientError::BurnTokenError(
                 web3::Error::InvalidResponse(format!(
                     "Transaction status is 0 (failure): {:?}",

common/client-libs/gateway-client/src/client.rs

@@ -40,6 +40,7 @@ const DEFAULT_RECONNECTION_BACKOFF: Duration = Duration::from_secs(5);
 
 pub struct GatewayClient {
     authenticated: bool,
+    testnet_mode: bool,
     bandwidth_remaining: i64,
     gateway_address: String,
     gateway_identity: identity::PublicKey,
@@ -75,6 +76,7 @@ impl GatewayClient {
     ) -> Self {
         GatewayClient {
             authenticated: false,
+            testnet_mode: false,
             bandwidth_remaining: 0,
             gateway_address,
             gateway_identity,
@@ -90,6 +92,10 @@ impl GatewayClient {
         }
     }
 
+    pub fn set_testnet_mode(&mut self, testnet_mode: bool) {
+        self.testnet_mode = testnet_mode
+    }
+
     // TODO: later convert into proper builder methods
     pub fn with_reconnection_on_failure(&mut self, should_reconnect_on_failure: bool) {
         self.should_reconnect_on_failure = should_reconnect_on_failure
@@ -119,6 +125,7 @@ impl GatewayClient {
 
         GatewayClient {
             authenticated: false,
+            testnet_mode: false,
             bandwidth_remaining: 0,
             gateway_address,
             gateway_identity,
@@ -513,6 +520,17 @@ impl GatewayClient {
         Ok(())
     }
 
+    async fn try_claim_testnet_bandwidth(&mut self) -> Result<(), GatewayClientError> {
+        let msg = ClientControlRequest::ClaimFreeTestnetBandwidth.into();
+        self.bandwidth_remaining = match self.send_websocket_message(msg).await? {
+            ServerResponse::Bandwidth { available_total } => Ok(available_total),
+            ServerResponse::Error { message } => Err(GatewayClientError::GatewayError(message)),
+            _ => Err(GatewayClientError::UnexpectedResponse),
+        }?;
+
+        Ok(())
+    }
+
     pub async fn claim_bandwidth(&mut self) -> Result<(), GatewayClientError> {
         if !self.authenticated {
             return Err(GatewayClientError::NotAuthenticated);
@@ -525,6 +543,10 @@ impl GatewayClient {
         }
 
         warn!("Not enough bandwidth. Trying to get more bandwidth, this might take a while");
+        if self.testnet_mode {
+            info!("The client is running in testnet mode - attempting to claim bandwidth without a credential");
+            return self.try_claim_testnet_bandwidth().await;
+        }
 
         #[cfg(feature = "coconut")]
         let credential = self

common/client-libs/validator-client/Cargo.toml

@@ -9,17 +9,18 @@ rust-version = "1.56"
 
 [dependencies]
 base64 = "0.13"
-mixnet-contract = { path="../../../common/mixnet-contract" }
-vesting-contract = { path="../../../contracts/vesting" }
-serde = { version="1", features=["derive"] }
+mixnet-contract-common = { path= "../../cosmwasm-smart-contracts/mixnet-contract" }
+vesting-contract = { path = "../../../contracts/vesting" }
+serde = { version = "1", features = ["derive"] }
 serde_json = "1"
-reqwest = { version="0.11", features=["json"] }
+reqwest = { version = "0.11", features = ["json"] }
 thiserror = "1"
 log = "0.4"
 url = { version = "2.2", features = ["serde"] }
 
 coconut-interface = { path = "../../coconut-interface" }
 network-defaults = { path = "../../network-defaults" }
+validator-api-requests = { path = "../../../validator-api/validator-api-requests" }
 
 # required for nymd-client
 # at some point it might be possible to make it wasm-compatible
@@ -27,14 +28,28 @@ network-defaults = { path = "../../network-defaults" }
 async-trait = { version = "0.1.51", optional = true }
 bip39 = { version = "1", features = ["rand"], optional = true }
 config = { path = "../../config", optional = true }
-#cosmrs = { version = "0.3", features = ["rpc", "bip32", "cosmwasm"], optional = true }
-cosmrs = { git = "https://github.com/cosmos/cosmos-rust", rev="e5a1872083abb3d88fa62dda966e7f5408deba58", features = ["rpc", "bip32", "cosmwasm"], optional = true }
+cosmrs = { version = "0.4.1", features = [
+    "rpc",
+    "bip32",
+    "cosmwasm",
+], optional = true }
 prost = { version = "0.9", 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 = { version = "1.0.0-beta2", optional = true }
-ts-rs = {version = "5.1", optional = true}
+cosmwasm-std = { version = "1.0.0-beta3", optional = true }
+ts-rs = { version = "5.1", optional = true }
 
 [features]
-nymd-client = ["async-trait", "bip39", "config", "cosmrs", "prost", "flate2", "sha2", "itertools", "cosmwasm-std"]
+nymd-client = [
+    "async-trait",
+    "bip39",
+    "config",
+    "cosmrs",
+    "prost",
+    "flate2",
+    "sha2",
+    "itertools",
+    "cosmwasm-std",
+]
+typescript-types = ["ts-rs", "validator-api-requests/ts-rs"]

common/client-libs/validator-client/src/client.rs

@@ -6,21 +6,30 @@ use crate::nymd::{
     error::NymdError, CosmWasmClient, NymdClient, QueryNymdClient, SigningNymdClient,
 };
 #[cfg(feature = "nymd-client")]
-use mixnet_contract::ContractStateParams;
+use mixnet_contract_common::ContractStateParams;
 
 use crate::{validator_api, ValidatorClientError};
 use coconut_interface::{BlindSignRequestBody, BlindedSignatureResponse, VerificationKeyResponse};
 #[cfg(feature = "nymd-client")]
-use mixnet_contract::{
-    Delegation, MixnetContractVersion, MixnodeRewardingStatusResponse, RewardingIntervalResponse,
+use mixnet_contract_common::{
+    Delegation, Interval, MixnetContractVersion, MixnodeRewardingStatusResponse,
+};
+use mixnet_contract_common::{
+    GatewayBond, IdentityKey, IdentityKeyRef, MixNodeBond, RewardedSetNodeStatus,
+    RewardedSetUpdateDetails,
 };
-use mixnet_contract::{GatewayBond, MixNodeBond};
 
+use std::collections::{HashMap, HashSet};
 #[cfg(feature = "nymd-client")]
 use std::str::FromStr;
 use url::Url;
+use validator_api_requests::models::{
+    CoreNodeStatusResponse, MixnodeStatusResponse, RewardEstimationResponse,
+    StakeSaturationResponse,
+};
 
 #[cfg(feature = "nymd-client")]
+#[must_use]
 pub struct Config {
     api_url: Url,
     nymd_url: Url,
@@ -30,6 +39,7 @@ pub struct Config {
     mixnode_page_limit: Option<u32>,
     gateway_page_limit: Option<u32>,
     mixnode_delegations_page_limit: Option<u32>,
+    rewarded_set_page_limit: Option<u32>,
 }
 
 #[cfg(feature = "nymd-client")]
@@ -48,6 +58,7 @@ impl Config {
             mixnode_page_limit: None,
             gateway_page_limit: None,
             mixnode_delegations_page_limit: None,
+            rewarded_set_page_limit: None,
         }
     }
 
@@ -65,6 +76,11 @@ impl Config {
         self.mixnode_delegations_page_limit = limit;
         self
     }
+
+    pub fn with_rewarded_set_page_limit(mut self, limit: Option<u32>) -> Config {
+        self.rewarded_set_page_limit = limit;
+        self
+    }
 }
 
 #[cfg(feature = "nymd-client")]
@@ -76,6 +92,7 @@ pub struct Client<C> {
     mixnode_page_limit: Option<u32>,
     gateway_page_limit: Option<u32>,
     mixnode_delegations_page_limit: Option<u32>,
+    rewarded_set_page_limit: Option<u32>,
 
     // ideally they would have been read-only, but unfortunately rust doesn't have such features
     pub validator_api: validator_api::Client,
@@ -104,6 +121,7 @@ impl Client<SigningNymdClient> {
             mixnode_page_limit: config.mixnode_page_limit,
             gateway_page_limit: config.gateway_page_limit,
             mixnode_delegations_page_limit: config.mixnode_delegations_page_limit,
+            rewarded_set_page_limit: None,
             validator_api: validator_api_client,
             nymd: nymd_client,
         })
@@ -127,14 +145,14 @@ impl Client<QueryNymdClient> {
         let validator_api_client = validator_api::Client::new(config.api_url.clone());
         let nymd_client = NymdClient::connect(
             config.nymd_url.as_str(),
-            config.mixnet_contract_address.clone().unwrap_or_else(|| {
+            Some(config.mixnet_contract_address.clone().unwrap_or_else(|| {
                 cosmrs::AccountId::from_str(network_defaults::DEFAULT_MIXNET_CONTRACT_ADDRESS)
                     .unwrap()
-            }),
-            config.vesting_contract_address.clone().unwrap_or_else(|| {
+            })),
+            Some(config.vesting_contract_address.clone().unwrap_or_else(|| {
                 cosmrs::AccountId::from_str(network_defaults::DEFAULT_VESTING_CONTRACT_ADDRESS)
                     .unwrap()
-            }),
+            })),
         )?;
 
         Ok(Client {
@@ -144,6 +162,7 @@ impl Client<QueryNymdClient> {
             mixnode_page_limit: config.mixnode_page_limit,
             gateway_page_limit: config.gateway_page_limit,
             mixnode_delegations_page_limit: config.mixnode_delegations_page_limit,
+            rewarded_set_page_limit: config.rewarded_set_page_limit,
             validator_api: validator_api_client,
             nymd: nymd_client,
         })
@@ -152,8 +171,8 @@ impl Client<QueryNymdClient> {
     pub fn change_nymd(&mut self, new_endpoint: Url) -> Result<(), ValidatorClientError> {
         self.nymd = NymdClient::connect(
             new_endpoint.as_ref(),
-            self.mixnet_contract_address.clone().unwrap(),
-            self.vesting_contract_address.clone().unwrap(),
+            self.mixnet_contract_address.clone(),
+            self.vesting_contract_address.clone(),
         )?;
         Ok(())
     }
@@ -179,6 +198,18 @@ impl<C> Client<C> {
         Ok(self.validator_api.get_mixnodes().await?)
     }
 
+    pub async fn get_cached_rewarded_mixnodes(
+        &self,
+    ) -> Result<Vec<MixNodeBond>, ValidatorClientError> {
+        Ok(self.validator_api.get_rewarded_mixnodes().await?)
+    }
+
+    pub async fn get_cached_active_mixnodes(
+        &self,
+    ) -> Result<Vec<MixNodeBond>, ValidatorClientError> {
+        Ok(self.validator_api.get_active_mixnodes().await?)
+    }
+
     pub async fn get_cached_gateways(&self) -> Result<Vec<GatewayBond>, ValidatorClientError> {
         Ok(self.validator_api.get_gateways().await?)
     }
@@ -197,18 +228,9 @@ impl<C> Client<C> {
         Ok(self.nymd.get_mixnet_contract_version().await?)
     }
 
-    pub async fn get_current_rewarding_interval(
-        &self,
-    ) -> Result<RewardingIntervalResponse, ValidatorClientError>
-    where
-        C: CosmWasmClient + Sync,
-    {
-        Ok(self.nymd.get_current_rewarding_interval().await?)
-    }
-
     pub async fn get_rewarding_status(
         &self,
-        mix_identity: mixnet_contract::IdentityKey,
+        mix_identity: mixnet_contract_common::IdentityKey,
         rewarding_interval_nonce: u32,
     ) -> Result<MixnodeRewardingStatusResponse, ValidatorClientError>
     where
@@ -227,6 +249,13 @@ impl<C> Client<C> {
         Ok(self.nymd.get_reward_pool().await?.u128())
     }
 
+    pub async fn get_current_interval(&self) -> Result<Interval, ValidatorClientError>
+    where
+        C: CosmWasmClient + Sync,
+    {
+        Ok(self.nymd.get_current_interval().await?)
+    }
+
     pub async fn get_circulating_supply(&self) -> Result<u128, ValidatorClientError>
     where
         C: CosmWasmClient + Sync,
@@ -241,14 +270,136 @@ impl<C> Client<C> {
         Ok(self.nymd.get_sybil_resistance_percent().await?)
     }
 
-    pub async fn get_epoch_reward_percent(&self) -> Result<u8, ValidatorClientError>
+    pub async fn get_active_set_work_factor(&self) -> Result<u8, ValidatorClientError>
     where
         C: CosmWasmClient + Sync,
     {
-        Ok(self.nymd.get_epoch_reward_percent().await?)
+        Ok(self.nymd.get_active_set_work_factor().await?)
+    }
+
+    pub async fn get_interval_reward_percent(&self) -> Result<u8, ValidatorClientError>
+    where
+        C: CosmWasmClient + Sync,
+    {
+        Ok(self.nymd.get_interval_reward_percent().await?)
+    }
+
+    pub async fn get_current_rewarded_set_update_details(
+        &self,
+    ) -> Result<RewardedSetUpdateDetails, ValidatorClientError>
+    where
+        C: CosmWasmClient + Sync,
+    {
+        Ok(self
+            .nymd
+            .query_current_rewarded_set_update_details()
+            .await?)
     }
 
     // basically handles paging for us
+    pub async fn get_all_nymd_rewarded_set_mixnode_identities(
+        &self,
+    ) -> Result<Vec<(IdentityKey, RewardedSetNodeStatus)>, ValidatorClientError>
+    where
+        C: CosmWasmClient + Sync,
+    {
+        let mut identities = Vec::new();
+        let mut start_after = None;
+        let mut height = None;
+
+        loop {
+            let mut paged_response = self
+                .nymd
+                .get_rewarded_set_identities_paged(
+                    start_after.take(),
+                    self.rewarded_set_page_limit,
+                    height,
+                )
+                .await?;
+            identities.append(&mut paged_response.identities);
+
+            if height.is_none() {
+                // keep using the same height (the first query happened at the most recent height)
+                height = Some(paged_response.at_height)
+            }
+
+            if let Some(start_after_res) = paged_response.start_next_after {
+                start_after = Some(start_after_res)
+            } else {
+                break;
+            }
+        }
+
+        Ok(identities)
+    }
+
+    pub async fn get_nymd_rewarded_and_active_sets(
+        &self,
+    ) -> Result<Vec<(MixNodeBond, RewardedSetNodeStatus)>, ValidatorClientError>
+    where
+        C: CosmWasmClient + Sync,
+    {
+        let all_mixnodes = self.get_all_nymd_mixnodes().await?;
+        let rewarded_set_identities = self
+            .get_all_nymd_rewarded_set_mixnode_identities()
+            .await?
+            .into_iter()
+            .collect::<HashMap<_, _>>();
+
+        Ok(all_mixnodes
+            .into_iter()
+            .filter_map(|node| {
+                rewarded_set_identities
+                    .get(node.identity())
+                    .map(|status| (node, *status))
+            })
+            .collect())
+    }
+
+    /// If you need both rewarded and the active set, consider using [Self::get_nymd_rewarded_and_active_sets] instead
+    pub async fn get_nymd_rewarded_set(&self) -> Result<Vec<MixNodeBond>, ValidatorClientError>
+    where
+        C: CosmWasmClient + Sync,
+    {
+        let all_mixnodes = self.get_all_nymd_mixnodes().await?;
+        let rewarded_set_identities = self
+            .get_all_nymd_rewarded_set_mixnode_identities()
+            .await?
+            .into_iter()
+            .map(|(identity, _status)| identity)
+            .collect::<HashSet<_>>();
+
+        Ok(all_mixnodes
+            .into_iter()
+            .filter(|node| rewarded_set_identities.contains(node.identity()))
+            .collect())
+    }
+
+    /// If you need both rewarded and the active set, consider using [Self::get_nymd_rewarded_and_active_sets] instead
+    pub async fn get_nymd_active_set(&self) -> Result<Vec<MixNodeBond>, ValidatorClientError>
+    where
+        C: CosmWasmClient + Sync,
+    {
+        let all_mixnodes = self.get_all_nymd_mixnodes().await?;
+        let active_set_identities = self
+            .get_all_nymd_rewarded_set_mixnode_identities()
+            .await?
+            .into_iter()
+            .filter_map(|(identity, status)| {
+                if status.is_active() {
+                    Some(identity)
+                } else {
+                    None
+                }
+            })
+            .collect::<HashSet<_>>();
+
+        Ok(all_mixnodes
+            .into_iter()
+            .filter(|node| active_set_identities.contains(node.identity()))
+            .collect())
+    }
+
     pub async fn get_all_nymd_mixnodes(&self) -> Result<Vec<MixNodeBond>, ValidatorClientError>
     where
         C: CosmWasmClient + Sync,
@@ -297,8 +448,8 @@ impl<C> Client<C> {
 
     pub async fn get_all_nymd_single_mixnode_delegations(
         &self,
-        identity: mixnet_contract::IdentityKey,
-    ) -> Result<Vec<mixnet_contract::Delegation>, ValidatorClientError>
+        identity: IdentityKey,
+    ) -> Result<Vec<Delegation>, ValidatorClientError>
     where
         C: CosmWasmClient + Sync,
     {
@@ -420,6 +571,12 @@ impl ApiClient {
         Ok(self.validator_api.get_active_mixnodes().await?)
     }
 
+    pub async fn get_cached_rewarded_mixnodes(
+        &self,
+    ) -> Result<Vec<MixNodeBond>, ValidatorClientError> {
+        Ok(self.validator_api.get_rewarded_mixnodes().await?)
+    }
+
     pub async fn get_cached_mixnodes(&self) -> Result<Vec<MixNodeBond>, ValidatorClientError> {
         Ok(self.validator_api.get_mixnodes().await?)
     }
@@ -428,6 +585,55 @@ impl ApiClient {
         Ok(self.validator_api.get_gateways().await?)
     }
 
+    pub async fn get_gateway_core_status_count(
+        &self,
+        identity: IdentityKeyRef<'_>,
+        since: Option<i64>,
+    ) -> Result<CoreNodeStatusResponse, ValidatorClientError> {
+        Ok(self
+            .validator_api
+            .get_gateway_core_status_count(identity, since)
+            .await?)
+    }
+
+    pub async fn get_mixnode_core_status_count(
+        &self,
+        identity: IdentityKeyRef<'_>,
+        since: Option<i64>,
+    ) -> Result<CoreNodeStatusResponse, ValidatorClientError> {
+        Ok(self
+            .validator_api
+            .get_mixnode_core_status_count(identity, since)
+            .await?)
+    }
+
+    pub async fn get_mixnode_status(
+        &self,
+        identity: IdentityKeyRef<'_>,
+    ) -> Result<MixnodeStatusResponse, ValidatorClientError> {
+        Ok(self.validator_api.get_mixnode_status(identity).await?)
+    }
+
+    pub async fn get_mixnode_reward_estimation(
+        &self,
+        identity: IdentityKeyRef<'_>,
+    ) -> Result<RewardEstimationResponse, ValidatorClientError> {
+        Ok(self
+            .validator_api
+            .get_mixnode_reward_estimation(identity)
+            .await?)
+    }
+
+    pub async fn get_mixnode_stake_saturation(
+        &self,
+        identity: IdentityKeyRef<'_>,
+    ) -> Result<StakeSaturationResponse, ValidatorClientError> {
+        Ok(self
+            .validator_api
+            .get_mixnode_stake_saturation(identity)
+            .await?)
+    }
+
     pub async fn blind_sign(
         &self,
         request_body: &BlindSignRequestBody,

common/client-libs/validator-client/src/lib.rs

@@ -9,6 +9,7 @@ pub mod validator_api;
 
 pub use crate::client::ApiClient;
 pub use crate::error::ValidatorClientError;
+pub use validator_api_requests::*;
 
 #[cfg(feature = "nymd-client")]
 pub use client::{Client, Config};

common/client-libs/validator-client/src/nymd/cosmwasm_client/client.rs

@@ -13,6 +13,7 @@ use cosmrs::proto::cosmos::auth::v1beta1::{
 };
 use cosmrs::proto::cosmos::bank::v1beta1::{
     QueryAllBalancesRequest, QueryAllBalancesResponse, QueryBalanceRequest, QueryBalanceResponse,
+    QueryTotalSupplyRequest, QueryTotalSupplyResponse,
 };
 use cosmrs::proto::cosmos::tx::v1beta1::{
     SimulateRequest, SimulateResponse as ProtoSimulateResponse,
@@ -27,6 +28,7 @@ use cosmrs::tendermint::abci::Code as AbciCode;
 use cosmrs::tendermint::abci::Transaction;
 use cosmrs::tendermint::{abci, block, chain};
 use cosmrs::{tx, AccountId, Coin, Denom, Tx};
+use cosmwasm_std::Coin as CosmWasmCoin;
 use prost::Message;
 use serde::{Deserialize, Serialize};
 use std::convert::{TryFrom, TryInto};
@@ -162,6 +164,43 @@ pub trait CosmWasmClient: rpc::Client {
             .map_err(|_| NymdError::SerializationError("Coins".to_owned()))
     }
 
+    // this is annoyingly and inconsistently returning `Vec<CosmWasmCoin>` rather than
+    // Vec<Coin>, since cosmrs::Coin can't deal with IBC denoms.
+    // Presumably after https://github.com/cosmos/cosmos-rust/issues/173 is resolved,
+    // the code could be adjusted
+    async fn get_total_supply(&self) -> Result<Vec<CosmWasmCoin>, NymdError> {
+        let path = Some("/cosmos.bank.v1beta1.Query/TotalSupply".parse().unwrap());
+
+        let mut supply = Vec::new();
+        let mut pagination = None;
+
+        loop {
+            let req = QueryTotalSupplyRequest { pagination };
+
+            let mut res = self
+                .make_abci_query::<_, QueryTotalSupplyResponse>(path.clone(), req)
+                .await?;
+
+            supply.append(&mut res.supply);
+            if let Some(pagination_info) = res.pagination {
+                pagination = Some(create_pagination(pagination_info.next_key))
+            } else {
+                break;
+            }
+        }
+
+        supply
+            .into_iter()
+            .map(|coin| {
+                coin.amount.parse().map(|amount| CosmWasmCoin {
+                    denom: coin.denom,
+                    amount,
+                })
+            })
+            .collect::<Result<_, _>>()
+            .map_err(|_| NymdError::SerializationError("Coins".to_owned()))
+    }
+
     async fn get_tx(&self, id: tx::Hash) -> Result<TxResponse, NymdError> {
         Ok(self.tx(id, false).await?)
     }

common/client-libs/validator-client/src/nymd/cosmwasm_client/signing_client.rs

@@ -160,10 +160,7 @@ pub trait SigningCosmWasmClient: CosmWasmClient {
     {
         let init_msg = cosmwasm::MsgInstantiateContract {
             sender: sender_address.clone(),
-            admin: options
-                .as_mut()
-                .map(|options| options.admin.take())
-                .flatten(),
+            admin: options.as_mut().and_then(|options| options.admin.take()),
             code_id,
             // now this is a weird one. the protobuf files say this field is optional,
             // but if you omit it, the initialisation will fail CheckTx

common/client-libs/validator-client/src/nymd/fee/helpers.rs

@@ -20,6 +20,7 @@ pub enum Operation {
     BondMixnodeOnBehalf,
     UnbondMixnode,
     UnbondMixnodeOnBehalf,
+    UpdateMixnodeConfig,
     DelegateToMixnode,
     DelegateToMixnodeOnBehalf,
     UndelegateFromMixnode,
@@ -40,6 +41,10 @@ pub enum Operation {
     WithdrawVestedCoins,
     TrackUndelegation,
     CreatePeriodicVestingAccount,
+
+    AdvanceCurrentInterval,
+    WriteRewardedSet,
+    ClearRewardedSet,
 }
 
 pub(crate) fn calculate_fee(gas_price: &GasPrice, gas_limit: Gas) -> Coin {
@@ -57,6 +62,7 @@ impl fmt::Display for Operation {
             Operation::BondMixnode => f.write_str("BondMixnode"),
             Operation::BondMixnodeOnBehalf => f.write_str("BondMixnodeOnBehalf"),
             Operation::UnbondMixnode => f.write_str("UnbondMixnode"),
+            Operation::UpdateMixnodeConfig => f.write_str("UpdateMixnodeConfig"),
             Operation::UnbondMixnodeOnBehalf => f.write_str("UnbondMixnodeOnBehalf"),
             Operation::BondGateway => f.write_str("BondGateway"),
             Operation::BondGatewayOnBehalf => f.write_str("BondGatewayOnBehalf"),
@@ -76,6 +82,9 @@ impl fmt::Display for Operation {
             Operation::WithdrawVestedCoins => f.write_str("WithdrawVestedCoins"),
             Operation::TrackUndelegation => f.write_str("TrackUndelegation"),
             Operation::CreatePeriodicVestingAccount => f.write_str("CreatePeriodicVestingAccount"),
+            Operation::AdvanceCurrentInterval => f.write_str("AdvanceCurrentInterval"),
+            Operation::WriteRewardedSet => f.write_str("WriteRewardedSet"),
+            Operation::ClearRewardedSet => f.write_str("ClearRewardedSet"),
         }
     }
 }
@@ -94,6 +103,7 @@ impl Operation {
             Operation::BondMixnodeOnBehalf => 200_000u64.into(),
             Operation::UnbondMixnode => 175_000u64.into(),
             Operation::UnbondMixnodeOnBehalf => 175_000u64.into(),
+            Operation::UpdateMixnodeConfig => 175_000u64.into(),
             Operation::DelegateToMixnode => 175_000u64.into(),
             Operation::DelegateToMixnodeOnBehalf => 175_000u64.into(),
             Operation::UndelegateFromMixnode => 175_000u64.into(),
@@ -112,6 +122,9 @@ impl Operation {
             Operation::WithdrawVestedCoins => 175_000u64.into(),
             Operation::TrackUndelegation => 175_000u64.into(),
             Operation::CreatePeriodicVestingAccount => 175_000u64.into(),
+            Operation::AdvanceCurrentInterval => 175_000u64.into(),
+            Operation::WriteRewardedSet => 175_000u64.into(),
+            Operation::ClearRewardedSet => 175_000u64.into(),
         }
     }
 

common/client-libs/validator-client/src/nymd/mod.rs

@@ -13,12 +13,12 @@ use cosmrs::rpc::{Error as TendermintRpcError, HttpClientUrl};
 use cosmwasm_std::{Coin, Uint128};
 pub use fee::gas_price::GasPrice;
 use fee::helpers::Operation;
-use mixnet_contract::{
+use mixnet_contract_common::{
     ContractStateParams, Delegation, ExecuteMsg, Gateway, GatewayBond, GatewayOwnershipResponse,
-    IdentityKey, LayerDistribution, MixNode, MixNodeBond, MixOwnershipResponse,
+    IdentityKey, Interval, LayerDistribution, MixNode, MixNodeBond, MixOwnershipResponse,
     MixnetContractVersion, MixnodeRewardingStatusResponse, PagedAllDelegationsResponse,
     PagedDelegatorDelegationsResponse, PagedGatewayResponse, PagedMixDelegationsResponse,
-    PagedMixnodeResponse, QueryMsg, RewardingIntervalResponse,
+    PagedMixnodeResponse, PagedRewardedSetResponse, QueryMsg, RewardedSetUpdateDetails,
 };
 use serde::Serialize;
 use std::convert::TryInto;
@@ -27,9 +27,12 @@ pub use crate::nymd::cosmwasm_client::client::CosmWasmClient;
 pub use crate::nymd::cosmwasm_client::signing_client::SigningCosmWasmClient;
 pub use crate::nymd::fee::Fee;
 use crate::nymd::fee::DEFAULT_SIMULATED_GAS_MULTIPLIER;
+pub use cosmrs::rpc::endpoint::validators::Response as ValidatorResponse;
 pub use cosmrs::rpc::HttpClient as QueryNymdClient;
+pub use cosmrs::rpc::Paging;
 pub use cosmrs::tendermint::block::Height;
 pub use cosmrs::tendermint::hash;
+pub use cosmrs::tendermint::validator::Info as TendermintValidatorInfo;
 pub use cosmrs::tendermint::Time as TendermintTime;
 pub use cosmrs::tx::{self, Gas};
 pub use cosmrs::Coin as CosmosCoin;
@@ -57,16 +60,16 @@ pub struct NymdClient<C> {
 impl NymdClient<QueryNymdClient> {
     pub fn connect<U>(
         endpoint: U,
-        mixnet_contract_address: AccountId,
-        vesting_contract_address: AccountId,
+        mixnet_contract_address: Option<AccountId>,
+        vesting_contract_address: Option<AccountId>,
     ) -> Result<NymdClient<QueryNymdClient>, NymdError>
     where
         U: TryInto<HttpClientUrl, Error = TendermintRpcError>,
     {
         Ok(NymdClient {
             client: QueryNymdClient::new(endpoint)?,
-            mixnet_contract_address: Some(mixnet_contract_address),
-            vesting_contract_address: Some(vesting_contract_address),
+            mixnet_contract_address,
+            vesting_contract_address,
             client_address: None,
             custom_gas_limits: Default::default(),
             simulated_gas_multiplier: DEFAULT_SIMULATED_GAS_MULTIPLIER,
@@ -234,6 +237,17 @@ impl<C> NymdClient<C> {
             .map(|block| block.block_id.hash)
     }
 
+    pub async fn get_validators(
+        &self,
+        height: u64,
+        paging: Paging,
+    ) -> Result<ValidatorResponse, NymdError>
+    where
+        C: CosmWasmClient + Sync,
+    {
+        Ok(self.client.validators(height as u32, paging).await?)
+    }
+
     pub async fn get_balance(
         &self,
         address: &AccountId,
@@ -255,6 +269,13 @@ impl<C> NymdClient<C> {
         self.get_balance(address, self.denom()?).await
     }
 
+    pub async fn get_total_supply(&self) -> Result<Vec<Coin>, NymdError>
+    where
+        C: CosmWasmClient + Sync,
+    {
+        self.client.get_total_supply().await
+    }
+
     pub async fn get_contract_settings(&self) -> Result<ContractStateParams, NymdError>
     where
         C: CosmWasmClient + Sync,
@@ -275,35 +296,65 @@ impl<C> NymdClient<C> {
             .await
     }
 
-    pub async fn get_current_rewarding_interval(
-        &self,
-    ) -> Result<RewardingIntervalResponse, NymdError>
-    where
-        C: CosmWasmClient + Sync,
-    {
-        let request = QueryMsg::CurrentRewardingInterval {};
-        self.client
-            .query_contract_smart(self.mixnet_contract_address()?, &request)
-            .await
-    }
-
     pub async fn get_rewarding_status(
         &self,
-        mix_identity: mixnet_contract::IdentityKey,
-        rewarding_interval_nonce: u32,
+        mix_identity: mixnet_contract_common::IdentityKey,
+        interval_id: u32,
     ) -> Result<MixnodeRewardingStatusResponse, NymdError>
     where
         C: CosmWasmClient + Sync,
     {
         let request = QueryMsg::GetRewardingStatus {
             mix_identity,
-            rewarding_interval_nonce,
+            interval_id,
         };
         self.client
             .query_contract_smart(self.mixnet_contract_address()?, &request)
             .await
     }
 
+    pub async fn query_current_rewarded_set_height(&self) -> Result<u64, NymdError>
+    where
+        C: CosmWasmClient + Sync,
+    {
+        let request = QueryMsg::GetCurrentRewardedSetHeight {};
+        self.client
+            .query_contract_smart(self.mixnet_contract_address()?, &request)
+            .await
+    }
+
+    pub async fn query_current_rewarded_set_update_details(
+        &self,
+    ) -> Result<RewardedSetUpdateDetails, NymdError>
+    where
+        C: CosmWasmClient + Sync,
+    {
+        let request = QueryMsg::GetRewardedSetUpdateDetails {};
+        self.client
+            .query_contract_smart(self.mixnet_contract_address()?, &request)
+            .await
+    }
+
+    pub async fn get_rewarded_set_identities_paged(
+        &self,
+        start_after: Option<IdentityKey>,
+        page_limit: Option<u32>,
+        height: Option<u64>,
+    ) -> Result<PagedRewardedSetResponse, NymdError>
+    where
+        C: CosmWasmClient + Sync,
+    {
+        let request = QueryMsg::GetRewardedSet {
+            height,
+            start_after,
+            limit: page_limit,
+        };
+
+        self.client
+            .query_contract_smart(self.mixnet_contract_address()?, &request)
+            .await
+    }
+
     pub async fn get_layer_distribution(&self) -> Result<LayerDistribution, NymdError>
     where
         C: CosmWasmClient + Sync,
@@ -314,6 +365,16 @@ impl<C> NymdClient<C> {
             .await
     }
 
+    pub async fn get_current_interval(&self) -> Result<Interval, NymdError>
+    where
+        C: CosmWasmClient + Sync,
+    {
+        let request = QueryMsg::GetCurrentInterval {};
+        self.client
+            .query_contract_smart(self.mixnet_contract_address()?, &request)
+            .await
+    }
+
     pub async fn get_reward_pool(&self) -> Result<Uint128, NymdError>
     where
         C: CosmWasmClient + Sync,
@@ -344,11 +405,21 @@ impl<C> NymdClient<C> {
             .await
     }
 
-    pub async fn get_epoch_reward_percent(&self) -> Result<u8, NymdError>
+    pub async fn get_active_set_work_factor(&self) -> Result<u8, NymdError>
     where
         C: CosmWasmClient + Sync,
     {
-        let request = QueryMsg::GetEpochRewardPercent {};
+        let request = QueryMsg::GetActiveSetWorkFactor {};
+        self.client
+            .query_contract_smart(self.mixnet_contract_address()?, &request)
+            .await
+    }
+
+    pub async fn get_interval_reward_percent(&self) -> Result<u8, NymdError>
+    where
+        C: CosmWasmClient + Sync,
+    {
+        let request = QueryMsg::GetIntervalRewardPercent {};
         self.client
             .query_contract_smart(self.mixnet_contract_address()?, &request)
             .await
@@ -773,6 +844,31 @@ impl<C> NymdClient<C> {
             .await
     }
 
+    /// Update the configuration of a mixnode. Right now, only possible for profit margin.
+    pub async fn update_mixnode_config(
+        &self,
+        profit_margin_percent: u8,
+    ) -> Result<ExecuteResult, NymdError>
+    where
+        C: SigningCosmWasmClient + Sync,
+    {
+        let fee = self.operation_fee(Operation::UpdateMixnodeConfig);
+
+        let req = ExecuteMsg::UpdateMixnodeConfig {
+            profit_margin_percent,
+        };
+        self.client
+            .execute(
+                self.address(),
+                self.mixnet_contract_address()?,
+                &req,
+                fee,
+                "Updating mixnode configuration from rust!",
+                Vec::new(),
+            )
+            .await
+    }
+
     /// Delegates specified amount of stake to particular mixnode.
     pub async fn delegate_to_mixnode(
         &self,
@@ -1076,41 +1172,38 @@ impl<C> NymdClient<C> {
             .await
     }
 
-    pub async fn begin_mixnode_rewarding(
-        &self,
-        rewarding_interval_nonce: u32,
-    ) -> Result<ExecuteResult, NymdError>
+    pub async fn advance_current_interval(&self) -> Result<ExecuteResult, NymdError>
     where
         C: SigningCosmWasmClient + Sync,
     {
-        let fee = self.operation_fee(Operation::BeginMixnodeRewarding);
+        let fee = self.operation_fee(Operation::AdvanceCurrentInterval);
 
-        let req = ExecuteMsg::BeginMixnodeRewarding {
-            rewarding_interval_nonce,
-        };
+        let req = ExecuteMsg::AdvanceCurrentInterval {};
         self.client
             .execute(
                 self.address(),
                 self.mixnet_contract_address()?,
                 &req,
                 fee,
-                "Beginning mixnode rewarding procedure",
+                "Advancing current interval",
                 Vec::new(),
             )
             .await
     }
 
-    pub async fn finish_mixnode_rewarding(
+    pub async fn write_rewarded_set(
         &self,
-        rewarding_interval_nonce: u32,
+        rewarded_set: Vec<IdentityKey>,
+        expected_active_set_size: u32,
     ) -> Result<ExecuteResult, NymdError>
     where
         C: SigningCosmWasmClient + Sync,
     {
-        let fee = self.operation_fee(Operation::FinishMixnodeRewarding);
+        let fee = self.operation_fee(Operation::WriteRewardedSet);
 
-        let req = ExecuteMsg::FinishMixnodeRewarding {
-            rewarding_interval_nonce,
+        let req = ExecuteMsg::WriteRewardedSet {
+            rewarded_set,
+            expected_active_set_size,
         };
         self.client
             .execute(
@@ -1118,7 +1211,7 @@ impl<C> NymdClient<C> {
                 self.mixnet_contract_address()?,
                 &req,
                 fee,
-                "Finishing mixnode rewarding procedure",
+                "Writing rewarded set",
                 Vec::new(),
             )
             .await

common/client-libs/validator-client/src/nymd/traits/vesting_signing_client.rs

@@ -8,7 +8,7 @@ use crate::nymd::fee::helpers::Operation;
 use crate::nymd::{cosmwasm_coin_to_cosmos_coin, NymdClient};
 use async_trait::async_trait;
 use cosmwasm_std::Coin;
-use mixnet_contract::{Gateway, IdentityKey, IdentityKeyRef, MixNode};
+use mixnet_contract_common::{Gateway, IdentityKey, IdentityKeyRef, MixNode};
 use vesting_contract::messages::ExecuteMsg as VestingExecuteMsg;
 
 #[async_trait]
@@ -64,7 +64,8 @@ pub trait VestingSigningClient {
 
     async fn create_periodic_vesting_account(
         &self,
-        address: &str,
+        owner_address: &str,
+        staking_address: Option<String>,
         start_time: Option<u64>,
         amount: Coin,
     ) -> Result<ExecuteResult, NymdError>;
@@ -271,13 +272,15 @@ impl<C: SigningCosmWasmClient + Sync + Send> VestingSigningClient for NymdClient
     }
     async fn create_periodic_vesting_account(
         &self,
-        address: &str,
+        owner_address: &str,
+        staking_address: Option<String>,
         start_time: Option<u64>,
         amount: Coin,
     ) -> Result<ExecuteResult, NymdError> {
         let fee = self.operation_fee(Operation::CreatePeriodicVestingAccount);
         let req = VestingExecuteMsg::CreateAccount {
-            address: address.to_string(),
+            owner_address: owner_address.to_string(),
+            staking_address,
             start_time,
         };
         self.client

common/client-libs/validator-client/src/nymd/wallet/mod.rs

@@ -133,6 +133,7 @@ impl DirectSecp256k1HdWallet {
     }
 }
 
+#[must_use]
 pub struct DirectSecp256k1HdWalletBuilder {
     /// The password to use when deriving a BIP39 seed from a mnemonic.
     bip39_password: String,
@@ -202,14 +203,28 @@ impl DirectSecp256k1HdWalletBuilder {
 #[cfg(test)]
 mod tests {
     use super::*;
+    use network_defaults::BECH32_PREFIX;
 
     #[test]
     fn generating_account_addresses() {
+        let (addr1, addr2, addr3) = match BECH32_PREFIX {
+            "punk" => (
+                "punk1jw6mp7d5xqc7w6xm79lha27glmd0vdt32a3fj2",
+                "punk1h5hgn94nsq4kh99rjj794hr5h5q6yfm22mcqqn",
+                "punk17n9flp6jflljg6fp05dsy07wcprf2uuujse962",
+            ),
+            "nymt" => (
+                "nymt1jw6mp7d5xqc7w6xm79lha27glmd0vdt339me94",
+                "nymt1h5hgn94nsq4kh99rjj794hr5h5q6yfm23rjshv",
+                "nymt17n9flp6jflljg6fp05dsy07wcprf2uuufgn4d4",
+            ),
+            _ => panic!("Test needs to be updated with new bech32 prefix"),
+        };
         // test vectors produced from our js wallet
         let mnemonic_address = vec![
-            ("crush minute paddle tobacco message debate cabin peace bar jacket execute twenty winner view sure mask popular couch penalty fragile demise fresh pizza stove", "punk1jw6mp7d5xqc7w6xm79lha27glmd0vdt32a3fj2"),
-            ("acquire rebel spot skin gun such erupt pull swear must define ill chief turtle today flower chunk truth battle claw rigid detail gym feel", "punk1h5hgn94nsq4kh99rjj794hr5h5q6yfm22mcqqn"),
-            ("step income throw wheat mobile ship wave drink pool sudden upset jaguar bar globe rifle spice frost bless glimpse size regular carry aspect ball", "punk17n9flp6jflljg6fp05dsy07wcprf2uuujse962")
+            ("crush minute paddle tobacco message debate cabin peace bar jacket execute twenty winner view sure mask popular couch penalty fragile demise fresh pizza stove", addr1),
+            ("acquire rebel spot skin gun such erupt pull swear must define ill chief turtle today flower chunk truth battle claw rigid detail gym feel", addr2),
+            ("step income throw wheat mobile ship wave drink pool sudden upset jaguar bar globe rifle spice frost bless glimpse size regular carry aspect ball", addr3)
         ];
 
         for (mnemonic, address) in mnemonic_address.into_iter() {

common/client-libs/validator-client/src/validator_api/mod.rs

@@ -1,16 +1,25 @@
-// Copyright 2021 - Nym Technologies SA <contact@nymtech.net>
+// Copyright 2021-2022 - Nym Technologies SA <contact@nymtech.net>
 // SPDX-License-Identifier: Apache-2.0
 
 use crate::validator_api::error::ValidatorAPIError;
+use crate::validator_api::routes::{CORE_STATUS_COUNT, SINCE_ARG};
 use coconut_interface::{BlindSignRequestBody, BlindedSignatureResponse, VerificationKeyResponse};
-use mixnet_contract::{GatewayBond, MixNodeBond};
+use mixnet_contract_common::{GatewayBond, IdentityKeyRef, MixNodeBond};
 use serde::{Deserialize, Serialize};
+use std::collections::HashMap;
 use url::Url;
+use validator_api_requests::models::{
+    CoreNodeStatusResponse, InclusionProbabilityResponse, MixnodeStatusResponse,
+    RewardEstimationResponse, StakeSaturationResponse,
+};
 
 pub mod error;
 pub(crate) mod routes;
 
 type PathSegments<'a> = &'a [&'a str];
+type Params<'a, K, V> = &'a [(K, V)];
+
+const NO_PARAMS: Params<'_, &'_ str, &'_ str> = &[];
 
 pub struct Client {
     url: Url,
@@ -30,24 +39,33 @@ impl Client {
         self.url = new_url
     }
 
-    async fn query_validator_api<T>(&self, path: PathSegments<'_>) -> Result<T, ValidatorAPIError>
+    async fn query_validator_api<T, K, V>(
+        &self,
+        path: PathSegments<'_>,
+        params: Params<'_, K, V>,
+    ) -> Result<T, ValidatorAPIError>
     where
         for<'a> T: Deserialize<'a>,
+        K: AsRef<str>,
+        V: AsRef<str>,
     {
-        let url = create_api_url(&self.url, path);
+        let url = create_api_url(&self.url, path, params);
         Ok(self.reqwest_client.get(url).send().await?.json().await?)
     }
 
-    async fn post_validator_api<B, T>(
+    async fn post_validator_api<B, T, K, V>(
         &self,
         path: PathSegments<'_>,
+        params: Params<'_, K, V>,
         json_body: &B,
     ) -> Result<T, ValidatorAPIError>
     where
         B: Serialize + ?Sized,
         for<'a> T: Deserialize<'a>,
+        K: AsRef<str>,
+        V: AsRef<str>,
     {
-        let url = create_api_url(&self.url, path);
+        let url = create_api_url(&self.url, path, params);
         Ok(self
             .reqwest_client
             .post(url)
@@ -59,18 +77,176 @@ impl Client {
     }
 
     pub async fn get_mixnodes(&self) -> Result<Vec<MixNodeBond>, ValidatorAPIError> {
-        self.query_validator_api(&[routes::API_VERSION, routes::MIXNODES])
+        self.query_validator_api(&[routes::API_VERSION, routes::MIXNODES], NO_PARAMS)
             .await
     }
 
     pub async fn get_gateways(&self) -> Result<Vec<GatewayBond>, ValidatorAPIError> {
-        self.query_validator_api(&[routes::API_VERSION, routes::GATEWAYS])
+        self.query_validator_api(&[routes::API_VERSION, routes::GATEWAYS], NO_PARAMS)
             .await
     }
 
     pub async fn get_active_mixnodes(&self) -> Result<Vec<MixNodeBond>, ValidatorAPIError> {
-        self.query_validator_api(&[routes::API_VERSION, routes::MIXNODES, routes::ACTIVE])
+        self.query_validator_api(
+            &[routes::API_VERSION, routes::MIXNODES, routes::ACTIVE],
+            NO_PARAMS,
+        )
+        .await
+    }
+
+    pub async fn get_rewarded_mixnodes(&self) -> Result<Vec<MixNodeBond>, ValidatorAPIError> {
+        self.query_validator_api(
+            &[routes::API_VERSION, routes::MIXNODES, routes::REWARDED],
+            NO_PARAMS,
+        )
+        .await
+    }
+
+    pub async fn get_probs_mixnode_rewarded(
+        &self,
+        mixnode_id: &str,
+    ) -> Result<HashMap<String, f32>, ValidatorAPIError> {
+        self.query_validator_api(
+            &[
+                routes::API_VERSION,
+                routes::MIXNODES,
+                routes::REWARDED,
+                routes::INCLUSION_CHANCE,
+                mixnode_id,
+            ],
+            NO_PARAMS,
+        )
+        .await
+    }
+
+    pub async fn get_gateway_core_status_count(
+        &self,
+        identity: IdentityKeyRef<'_>,
+        since: Option<i64>,
+    ) -> Result<CoreNodeStatusResponse, ValidatorAPIError> {
+        if let Some(since) = since {
+            self.query_validator_api(
+                &[
+                    routes::API_VERSION,
+                    routes::STATUS_ROUTES,
+                    routes::GATEWAY,
+                    identity,
+                    CORE_STATUS_COUNT,
+                ],
+                &[(SINCE_ARG, since.to_string())],
+            )
             .await
+        } else {
+            self.query_validator_api(
+                &[
+                    routes::API_VERSION,
+                    routes::STATUS_ROUTES,
+                    routes::GATEWAY,
+                    identity,
+                ],
+                NO_PARAMS,
+            )
+            .await
+        }
+    }
+
+    pub async fn get_mixnode_core_status_count(
+        &self,
+        identity: IdentityKeyRef<'_>,
+        since: Option<i64>,
+    ) -> Result<CoreNodeStatusResponse, ValidatorAPIError> {
+        if let Some(since) = since {
+            self.query_validator_api(
+                &[
+                    routes::API_VERSION,
+                    routes::STATUS_ROUTES,
+                    routes::MIXNODE,
+                    identity,
+                    CORE_STATUS_COUNT,
+                ],
+                &[(SINCE_ARG, since.to_string())],
+            )
+            .await
+        } else {
+            self.query_validator_api(
+                &[
+                    routes::API_VERSION,
+                    routes::STATUS_ROUTES,
+                    routes::MIXNODE,
+                    identity,
+                ],
+                NO_PARAMS,
+            )
+            .await
+        }
+    }
+
+    pub async fn get_mixnode_status(
+        &self,
+        identity: IdentityKeyRef<'_>,
+    ) -> Result<MixnodeStatusResponse, ValidatorAPIError> {
+        self.query_validator_api(
+            &[
+                routes::API_VERSION,
+                routes::STATUS_ROUTES,
+                routes::MIXNODE,
+                identity,
+                routes::STATUS,
+            ],
+            NO_PARAMS,
+        )
+        .await
+    }
+
+    pub async fn get_mixnode_reward_estimation(
+        &self,
+        identity: IdentityKeyRef<'_>,
+    ) -> Result<RewardEstimationResponse, ValidatorAPIError> {
+        self.query_validator_api(
+            &[
+                routes::API_VERSION,
+                routes::STATUS_ROUTES,
+                routes::MIXNODE,
+                identity,
+                routes::REWARD_ESTIMATION,
+            ],
+            NO_PARAMS,
+        )
+        .await
+    }
+
+    pub async fn get_mixnode_stake_saturation(
+        &self,
+        identity: IdentityKeyRef<'_>,
+    ) -> Result<StakeSaturationResponse, ValidatorAPIError> {
+        self.query_validator_api(
+            &[
+                routes::API_VERSION,
+                routes::STATUS_ROUTES,
+                routes::MIXNODE,
+                identity,
+                routes::STAKE_SATURATION,
+            ],
+            NO_PARAMS,
+        )
+        .await
+    }
+
+    pub async fn get_mixnode_inclusion_probability(
+        &self,
+        identity: IdentityKeyRef<'_>,
+    ) -> Result<InclusionProbabilityResponse, ValidatorAPIError> {
+        self.query_validator_api(
+            &[
+                routes::API_VERSION,
+                routes::STATUS_ROUTES,
+                routes::MIXNODE,
+                identity,
+                routes::INCLUSION_CHANCE,
+            ],
+            NO_PARAMS,
+        )
+        .await
     }
 
     pub async fn blind_sign(
@@ -79,6 +255,7 @@ impl Client {
     ) -> Result<BlindedSignatureResponse, ValidatorAPIError> {
         self.post_validator_api(
             &[routes::API_VERSION, routes::COCONUT_BLIND_SIGN],
+            NO_PARAMS,
             request_body,
         )
         .await
@@ -87,13 +264,20 @@ impl Client {
     pub async fn get_coconut_verification_key(
         &self,
     ) -> Result<VerificationKeyResponse, ValidatorAPIError> {
-        self.query_validator_api(&[routes::API_VERSION, routes::COCONUT_VERIFICATION_KEY])
-            .await
+        self.query_validator_api(
+            &[routes::API_VERSION, routes::COCONUT_VERIFICATION_KEY],
+            NO_PARAMS,
+        )
+        .await
     }
 }
 
 // utility function that should solve the double slash problem in validator API forever.
-fn create_api_url(base: &Url, segments: PathSegments<'_>) -> Url {
+fn create_api_url<K: AsRef<str>, V: AsRef<str>>(
+    base: &Url,
+    segments: PathSegments<'_>,
+    params: Params<'_, K, V>,
+) -> Url {
     let mut url = base.clone();
     let mut path_segments = url
         .path_segments_mut()
@@ -108,6 +292,10 @@ fn create_api_url(base: &Url, segments: PathSegments<'_>) -> Url {
     // and can be dropped
     drop(path_segments);
 
+    if !params.is_empty() {
+        url.query_pairs_mut().extend_pairs(params);
+    }
+
     url
 }
 
@@ -122,51 +310,66 @@ mod tests {
         // works with 1 segment
         assert_eq!(
             "http://foomp.com/foo",
-            create_api_url(&base_url, &["foo"]).as_str()
+            create_api_url(&base_url, &["foo"], NO_PARAMS).as_str()
         );
 
         // works with 2 segments
         assert_eq!(
             "http://foomp.com/foo/bar",
-            create_api_url(&base_url, &["foo", "bar"]).as_str()
+            create_api_url(&base_url, &["foo", "bar"], NO_PARAMS).as_str()
         );
 
         // works with leading slash
         assert_eq!(
             "http://foomp.com/foo",
-            create_api_url(&base_url, &["/foo"]).as_str()
+            create_api_url(&base_url, &["/foo"], NO_PARAMS).as_str()
         );
         assert_eq!(
             "http://foomp.com/foo/bar",
-            create_api_url(&base_url, &["/foo", "bar"]).as_str()
+            create_api_url(&base_url, &["/foo", "bar"], NO_PARAMS).as_str()
         );
         assert_eq!(
             "http://foomp.com/foo/bar",
-            create_api_url(&base_url, &["foo", "/bar"]).as_str()
+            create_api_url(&base_url, &["foo", "/bar"], NO_PARAMS).as_str()
         );
 
         // works with trailing slash
         assert_eq!(
             "http://foomp.com/foo",
-            create_api_url(&base_url, &["foo/"]).as_str()
+            create_api_url(&base_url, &["foo/"], NO_PARAMS).as_str()
         );
         assert_eq!(
             "http://foomp.com/foo/bar",
-            create_api_url(&base_url, &["foo/", "bar"]).as_str()
+            create_api_url(&base_url, &["foo/", "bar"], NO_PARAMS).as_str()
         );
         assert_eq!(
             "http://foomp.com/foo/bar",
-            create_api_url(&base_url, &["foo", "bar/"]).as_str()
+            create_api_url(&base_url, &["foo", "bar/"], NO_PARAMS).as_str()
         );
 
         // works with both leading and trailing slash
         assert_eq!(
             "http://foomp.com/foo",
-            create_api_url(&base_url, &["/foo/"]).as_str()
+            create_api_url(&base_url, &["/foo/"], NO_PARAMS).as_str()
         );
         assert_eq!(
             "http://foomp.com/foo/bar",
-            create_api_url(&base_url, &["/foo/", "/bar/"]).as_str()
+            create_api_url(&base_url, &["/foo/", "/bar/"], NO_PARAMS).as_str()
+        );
+
+        // adds params
+        assert_eq!(
+            "http://foomp.com/foo/bar?foomp=baz",
+            create_api_url(&base_url, &["foo", "bar"], &[("foomp", "baz")]).as_str()
+        );
+        assert_eq!(
+            "http://foomp.com/foo/bar?arg1=val1&arg2=val2",
+            create_api_url(
+                &base_url,
+                &["/foo/", "/bar/"],
+                &[("arg1", "val1"), ("arg2", "val2")]
+            )
+            .as_str()
         );
     }
 }

common/client-libs/validator-client/src/validator_api/routes.rs

@@ -8,6 +8,19 @@ pub const MIXNODES: &str = "mixnodes";
 pub const GATEWAYS: &str = "gateways";
 
 pub const ACTIVE: &str = "active";
+pub const REWARDED: &str = "rewarded";
 
-pub const COCONUT_BLIND_SIGN: &str = "blind_sign";
-pub const COCONUT_VERIFICATION_KEY: &str = "verification_key";
+pub const COCONUT_BLIND_SIGN: &str = "blind-sign";
+pub const COCONUT_VERIFICATION_KEY: &str = "verification-key";
+
+pub const STATUS_ROUTES: &str = "status";
+pub const MIXNODE: &str = "mixnode";
+pub const GATEWAY: &str = "gateway";
+
+pub const CORE_STATUS_COUNT: &str = "core-status-count";
+pub const SINCE_ARG: &str = "since";
+
+pub const STATUS: &str = "status";
+pub const REWARD_ESTIMATION: &str = "reward-estimation";
+pub const STAKE_SATURATION: &str = "stake-saturation";
+pub const INCLUSION_CHANCE: &str = "inclusion-probability";

common/cosmwasm-smart-contracts/contracts-common/Cargo.toml

@@ -0,0 +1,10 @@
+[package]
+name = "contracts-common"
+version = "0.1.0"
+authors = ["Jędrzej Stuczyński <andrew@nymtech.net>"]
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+cosmwasm-std = "1.0.0-beta3"

common/cosmwasm-smart-contracts/contracts-common/src/events.rs

@@ -0,0 +1,30 @@
+// Copyright 2022 - Nym Technologies SA <contact@nymtech.net>
+// SPDX-License-Identifier: Apache-2.0
+
+use cosmwasm_std::Event;
+
+/// Looks up value of particular attribute in the provided event. If it fails to find it,
+/// the function panics.
+///
+/// # Arguments
+///
+/// * `event`: event to search through.
+/// * `key`: key associated with the particular attribute
+pub fn must_find_attribute(event: &Event, key: &str) -> String {
+    may_find_attribute(event, key).unwrap()
+}
+
+/// Looks up value of particular attribute in the provided event. Returns None if it does not exist.
+///
+/// # Arguments
+///
+/// * `event`: event to search through.
+/// * `key`: key associated with the particular attribute
+pub fn may_find_attribute(event: &Event, key: &str) -> Option<String> {
+    for attr in &event.attributes {
+        if attr.key == key {
+            return Some(attr.value.clone());
+        }
+    }
+    None
+}

common/cosmwasm-smart-contracts/contracts-common/src/lib.rs

@@ -0,0 +1,4 @@
+// Copyright 2021 - Nym Technologies SA <contact@nymtech.net>
+// SPDX-License-Identifier: Apache-2.0
+
+pub mod events;

common/cosmwasm-smart-contracts/mixnet-contract/Cargo.toml

@@ -1,5 +1,5 @@
 [package]
-name = "mixnet-contract"
+name = "mixnet-contract-common"
 version = "0.1.0"
 authors = ["Jędrzej Stuczyński <andrew@nymtech.net>"]
 edition = "2018"
@@ -7,17 +7,24 @@ edition = "2018"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-cosmwasm-std = "1.0.0-beta2"
+cosmwasm-std = "1.0.0-beta3"
 
 serde = { version = "1.0", features = ["derive"] }
 serde_repr = "0.1"
 schemars = "0.8"
 ts-rs = { version = "5.1", optional = true }
 thiserror = "1.0"
-network-defaults = { path = "../network-defaults" }
+network-defaults = { path = "../../network-defaults" }
 fixed = { version = "1.1", features = ["serde"] }
 az = "1.1"
 log = "0.4.14"
+time = { version = "0.3.6", features = ["parsing", "formatting"] }
+
+contracts-common = { path = "../contracts-common" }
+
+[dev-dependencies]
+time = { version = "0.3.5", features = ["serde", "macros"] }
+
 
 [features]
 default = []

common/cosmwasm-smart-contracts/mixnet-contract/src/events.rs

@@ -0,0 +1,338 @@
+// Copyright 2022 - Nym Technologies SA <contact@nymtech.net>
+// SPDX-License-Identifier: Apache-2.0
+
+use crate::mixnode::NodeRewardResult;
+use crate::{ContractStateParams, Delegation, IdentityKeyRef, Interval, Layer};
+use cosmwasm_std::{Addr, Coin, Event, Uint128};
+
+pub use contracts_common::events::*;
+
+// event types
+pub const DELEGATION_EVENT_TYPE: &str = "delegation";
+pub const UNDELEGATION_EVENT_TYPE: &str = "undelegation";
+pub const GATEWAY_BONDING_EVENT_TYPE: &str = "gateway_bonding";
+pub const GATEWAY_UNBONDING_EVENT_TYPE: &str = "gateway_unbonding";
+pub const MIXNODE_BONDING_EVENT_TYPE: &str = "mixnode_bonding";
+pub const MIXNODE_UNBONDING_EVENT_TYPE: &str = "mixnode_unbonding";
+pub const SETTINGS_UPDATE_EVENT_TYPE: &str = "settings_update";
+pub const OPERATOR_REWARDING_EVENT_TYPE: &str = "mix_rewarding";
+pub const MIX_DELEGATORS_REWARDING_EVENT_TYPE: &str = "mix_delegators_rewarding";
+pub const CHANGE_REWARDED_SET_EVENT_TYPE: &str = "change_rewarded_set";
+pub const ADVANCE_INTERVAL_EVENT_TYPE: &str = "advance_interval";
+
+// attributes that are used in multiple places
+pub const OWNER_KEY: &str = "owner";
+pub const AMOUNT_KEY: &str = "amount";
+pub const PROXY_KEY: &str = "proxy";
+
+// event-specific attributes
+
+// delegation/undelegation
+pub const DELEGATOR_KEY: &str = "delegator";
+pub const DELEGATION_TARGET_KEY: &str = "delegation_target";
+pub const DELEGATION_HEIGHT_KEY: &str = "delegation_latest_block_height";
+
+// bonding/unbonding
+pub const NODE_IDENTITY_KEY: &str = "identity";
+pub const ASSIGNED_LAYER_KEY: &str = "assigned_layer";
+
+// settings change
+pub const OLD_MINIMUM_MIXNODE_PLEDGE_KEY: &str = "old_minimum_mixnode_pledge";
+pub const OLD_MINIMUM_GATEWAY_PLEDGE_KEY: &str = "old_minimum_gateway_pledge";
+pub const OLD_MIXNODE_REWARDED_SET_SIZE_KEY: &str = "old_mixnode_rewarded_set_size";
+pub const OLD_MIXNODE_ACTIVE_SET_SIZE_KEY: &str = "old_mixnode_active_set_size";
+pub const OLD_ACTIVE_SET_WORK_FACTOR_KEY: &str = "old_active_set_work_factor";
+
+pub const NEW_MINIMUM_MIXNODE_PLEDGE_KEY: &str = "new_minimum_mixnode_pledge";
+pub const NEW_MINIMUM_GATEWAY_PLEDGE_KEY: &str = "new_minimum_gateway_pledge";
+pub const NEW_MIXNODE_REWARDED_SET_SIZE_KEY: &str = "new_mixnode_rewarded_set_size";
+pub const NEW_MIXNODE_ACTIVE_SET_SIZE_KEY: &str = "new_mixnode_active_set_size";
+
+// rewarding
+pub const INTERVAL_ID_KEY: &str = "interval_id";
+pub const TOTAL_MIXNODE_REWARD_KEY: &str = "total_node_reward";
+pub const OPERATOR_REWARD_KEY: &str = "operator_reward";
+pub const LAMBDA_KEY: &str = "lambda";
+pub const SIGMA_KEY: &str = "sigma";
+pub const DISTRIBUTED_DELEGATION_REWARDS_KEY: &str = "distributed_delegation_rewards";
+pub const FURTHER_DELEGATIONS_TO_REWARD_KEY: &str = "further_delegations";
+pub const NO_REWARD_REASON_KEY: &str = "no_reward_reason";
+pub const BOND_NOT_FOUND_VALUE: &str = "bond_not_found";
+pub const BOND_TOO_FRESH_VALUE: &str = "bond_too_fresh";
+pub const ZERO_UPTIME_VALUE: &str = "zero_uptime";
+
+// rewarded set update
+pub const ACTIVE_SET_SIZE_KEY: &str = "active_set_size";
+pub const REWARDED_SET_SIZE_KEY: &str = "rewarded_set_size";
+pub const NODES_IN_REWARDED_SET_KEY: &str = "nodes_in_rewarded_set";
+pub const CURRENT_INTERVAL_ID_KEY: &str = "current_interval";
+
+pub const NEW_CURRENT_INTERVAL_KEY: &str = "new_current_interval";
+
+pub fn new_delegation_event(
+    delegator: &Addr,
+    proxy: &Option<Addr>,
+    amount: &Coin,
+    mix_identity: IdentityKeyRef,
+) -> Event {
+    let mut event = Event::new(DELEGATION_EVENT_TYPE).add_attribute(DELEGATOR_KEY, delegator);
+
+    if let Some(proxy) = proxy {
+        event = event.add_attribute(PROXY_KEY, proxy)
+    }
+
+    // coin implements Display trait and we use that implementation here
+    event
+        .add_attribute(AMOUNT_KEY, amount.to_string())
+        .add_attribute(DELEGATION_TARGET_KEY, mix_identity)
+}
+
+pub fn new_undelegation_event(
+    delegator: &Addr,
+    proxy: &Option<Addr>,
+    old_delegation: &Delegation,
+    mix_identity: IdentityKeyRef,
+) -> Event {
+    let mut event = Event::new(UNDELEGATION_EVENT_TYPE).add_attribute(DELEGATOR_KEY, delegator);
+
+    if let Some(proxy) = proxy {
+        event = event.add_attribute(PROXY_KEY, proxy)
+    }
+
+    // coin implements Display trait and we use that implementation here
+    event
+        .add_attribute(AMOUNT_KEY, old_delegation.amount.to_string())
+        .add_attribute(
+            DELEGATION_HEIGHT_KEY,
+            old_delegation.block_height.to_string(),
+        )
+        .add_attribute(DELEGATION_TARGET_KEY, mix_identity)
+}
+
+pub fn new_gateway_bonding_event(
+    owner: &Addr,
+    proxy: &Option<Addr>,
+    amount: &Coin,
+    identity: IdentityKeyRef,
+) -> Event {
+    let mut event = Event::new(GATEWAY_BONDING_EVENT_TYPE)
+        .add_attribute(OWNER_KEY, owner)
+        .add_attribute(NODE_IDENTITY_KEY, identity);
+
+    if let Some(proxy) = proxy {
+        event = event.add_attribute(PROXY_KEY, proxy)
+    }
+
+    // coin implements Display trait and we use that implementation here
+    event.add_attribute(AMOUNT_KEY, amount.to_string())
+}
+
+pub fn new_gateway_unbonding_event(
+    owner: &Addr,
+    proxy: &Option<Addr>,
+    amount: &Coin,
+    identity: IdentityKeyRef,
+) -> Event {
+    let mut event = Event::new(GATEWAY_UNBONDING_EVENT_TYPE)
+        .add_attribute(OWNER_KEY, owner)
+        .add_attribute(NODE_IDENTITY_KEY, identity);
+
+    if let Some(proxy) = proxy {
+        event = event.add_attribute(PROXY_KEY, proxy)
+    }
+
+    // coin implements Display trait and we use that implementation here
+    event.add_attribute(AMOUNT_KEY, amount.to_string())
+}
+
+pub fn new_mixnode_bonding_event(
+    owner: &Addr,
+    proxy: &Option<Addr>,
+    amount: &Coin,
+    identity: IdentityKeyRef,
+    assigned_layer: Layer,
+) -> Event {
+    let mut event = Event::new(MIXNODE_BONDING_EVENT_TYPE)
+        .add_attribute(OWNER_KEY, owner)
+        .add_attribute(NODE_IDENTITY_KEY, identity);
+
+    if let Some(proxy) = proxy {
+        event = event.add_attribute(PROXY_KEY, proxy)
+    }
+
+    // coin implements Display trait and we use that implementation here
+    event
+        .add_attribute(ASSIGNED_LAYER_KEY, assigned_layer)
+        .add_attribute(AMOUNT_KEY, amount.to_string())
+}
+
+pub fn new_mixnode_unbonding_event(
+    owner: &Addr,
+    proxy: &Option<Addr>,
+    amount: &Coin,
+    identity: IdentityKeyRef,
+) -> Event {
+    let mut event = Event::new(MIXNODE_UNBONDING_EVENT_TYPE)
+        .add_attribute(OWNER_KEY, owner)
+        .add_attribute(NODE_IDENTITY_KEY, identity);
+
+    if let Some(proxy) = proxy {
+        event = event.add_attribute(PROXY_KEY, proxy)
+    }
+
+    // coin implements Display trait and we use that implementation here
+    event.add_attribute(AMOUNT_KEY, amount.to_string())
+}
+
+pub fn new_settings_update_event(
+    old_params: &ContractStateParams,
+    new_params: &ContractStateParams,
+) -> Event {
+    let mut event = Event::new(SETTINGS_UPDATE_EVENT_TYPE);
+
+    if old_params.minimum_mixnode_pledge != new_params.minimum_mixnode_pledge {
+        event = event
+            .add_attribute(
+                OLD_MINIMUM_MIXNODE_PLEDGE_KEY,
+                old_params.minimum_mixnode_pledge,
+            )
+            .add_attribute(
+                NEW_MINIMUM_MIXNODE_PLEDGE_KEY,
+                new_params.minimum_mixnode_pledge,
+            )
+    }
+
+    if old_params.minimum_gateway_pledge != new_params.minimum_gateway_pledge {
+        event = event
+            .add_attribute(
+                OLD_MINIMUM_GATEWAY_PLEDGE_KEY,
+                old_params.minimum_gateway_pledge,
+            )
+            .add_attribute(
+                NEW_MINIMUM_GATEWAY_PLEDGE_KEY,
+                new_params.minimum_gateway_pledge,
+            )
+    }
+
+    if old_params.mixnode_rewarded_set_size != new_params.mixnode_rewarded_set_size {
+        event = event
+            .add_attribute(
+                OLD_MIXNODE_REWARDED_SET_SIZE_KEY,
+                old_params.mixnode_rewarded_set_size.to_string(),
+            )
+            .add_attribute(
+                NEW_MIXNODE_REWARDED_SET_SIZE_KEY,
+                new_params.mixnode_rewarded_set_size.to_string(),
+            )
+    }
+
+    if old_params.mixnode_active_set_size != new_params.mixnode_active_set_size {
+        event = event
+            .add_attribute(
+                OLD_MIXNODE_ACTIVE_SET_SIZE_KEY,
+                old_params.mixnode_active_set_size.to_string(),
+            )
+            .add_attribute(
+                NEW_MIXNODE_ACTIVE_SET_SIZE_KEY,
+                new_params.mixnode_active_set_size.to_string(),
+            )
+    }
+
+    event
+}
+
+pub fn new_not_found_mix_operator_rewarding_event(
+    interval_id: u32,
+    identity: IdentityKeyRef,
+) -> Event {
+    Event::new(OPERATOR_REWARDING_EVENT_TYPE)
+        .add_attribute(INTERVAL_ID_KEY, interval_id.to_string())
+        .add_attribute(NODE_IDENTITY_KEY, identity)
+        .add_attribute(NO_REWARD_REASON_KEY, BOND_NOT_FOUND_VALUE)
+}
+
+pub fn new_too_fresh_bond_mix_operator_rewarding_event(
+    interval_id: u32,
+    identity: IdentityKeyRef,
+) -> Event {
+    Event::new(OPERATOR_REWARDING_EVENT_TYPE)
+        .add_attribute(INTERVAL_ID_KEY, interval_id.to_string())
+        .add_attribute(NODE_IDENTITY_KEY, identity)
+        .add_attribute(NO_REWARD_REASON_KEY, BOND_TOO_FRESH_VALUE)
+}
+
+pub fn new_zero_uptime_mix_operator_rewarding_event(
+    interval_id: u32,
+    identity: IdentityKeyRef,
+) -> Event {
+    Event::new(OPERATOR_REWARDING_EVENT_TYPE)
+        .add_attribute(INTERVAL_ID_KEY, interval_id.to_string())
+        .add_attribute(NODE_IDENTITY_KEY, identity)
+        .add_attribute(NO_REWARD_REASON_KEY, ZERO_UPTIME_VALUE)
+}
+
+pub fn new_mix_operator_rewarding_event(
+    interval_id: u32,
+    identity: IdentityKeyRef,
+    node_reward_result: NodeRewardResult,
+    operator_reward: Uint128,
+    delegation_rewards_distributed: Uint128,
+    further_delegations: bool,
+) -> Event {
+    Event::new(OPERATOR_REWARDING_EVENT_TYPE)
+        .add_attribute(INTERVAL_ID_KEY, interval_id.to_string())
+        .add_attribute(NODE_IDENTITY_KEY, identity)
+        .add_attribute(
+            TOTAL_MIXNODE_REWARD_KEY,
+            node_reward_result.reward().to_string(),
+        )
+        .add_attribute(LAMBDA_KEY, node_reward_result.lambda().to_string())
+        .add_attribute(SIGMA_KEY, node_reward_result.sigma().to_string())
+        .add_attribute(OPERATOR_REWARD_KEY, operator_reward)
+        .add_attribute(
+            DISTRIBUTED_DELEGATION_REWARDS_KEY,
+            delegation_rewards_distributed,
+        )
+        .add_attribute(
+            FURTHER_DELEGATIONS_TO_REWARD_KEY,
+            further_delegations.to_string(),
+        )
+}
+
+pub fn new_mix_delegators_rewarding_event(
+    interval_id: u32,
+    identity: IdentityKeyRef,
+    delegation_rewards_distributed: Uint128,
+    further_delegations: bool,
+) -> Event {
+    Event::new(MIX_DELEGATORS_REWARDING_EVENT_TYPE)
+        .add_attribute(INTERVAL_ID_KEY, interval_id.to_string())
+        .add_attribute(NODE_IDENTITY_KEY, identity)
+        .add_attribute(
+            DISTRIBUTED_DELEGATION_REWARDS_KEY,
+            delegation_rewards_distributed,
+        )
+        .add_attribute(
+            FURTHER_DELEGATIONS_TO_REWARD_KEY,
+            further_delegations.to_string(),
+        )
+}
+
+// note that when this event is emitted, we'll know the current block height
+pub fn new_change_rewarded_set_event(
+    active_set_size: u32,
+    rewarded_set_size: u32,
+    nodes_in_rewarded_set: u32,
+    current_interval_id: u32,
+) -> Event {
+    Event::new(CHANGE_REWARDED_SET_EVENT_TYPE)
+        .add_attribute(ACTIVE_SET_SIZE_KEY, active_set_size.to_string())
+        .add_attribute(REWARDED_SET_SIZE_KEY, rewarded_set_size.to_string())
+        .add_attribute(NODES_IN_REWARDED_SET_KEY, nodes_in_rewarded_set.to_string())
+        .add_attribute(CURRENT_INTERVAL_ID_KEY, current_interval_id.to_string())
+}
+
+pub fn new_advance_interval_event(interval: Interval) -> Event {
+    Event::new(ADVANCE_INTERVAL_EVENT_TYPE)
+        .add_attribute(NEW_CURRENT_INTERVAL_KEY, interval.to_string())
+}

common/cosmwasm-smart-contracts/mixnet-contract/src/interval.rs

@@ -0,0 +1,365 @@
+// Copyright 2021 - Nym Technologies SA <contact@nymtech.net>
+// SPDX-License-Identifier: Apache-2.0
+
+use serde::{Deserialize, Serialize};
+use std::convert::TryInto;
+use std::fmt::{Display, Formatter};
+use std::time::Duration;
+use time::OffsetDateTime;
+
+// internally, since version 0.3.6, time uses deserialize_any for deserialization, which can't be handled
+// by serde wasm. We could just downgrade to 0.3.5 and call it a day, but then it would break
+// when we decided to upgrade it at some point in the future. And then it would have been more problematic
+// to fix it, since the data would have already been stored inside the contract.
+// Hence, an explicit workaround to use string representation of Rfc3339-formatted datetime.
+pub(crate) mod string_rfc3339_offset_date_time {
+    use serde::de::Visitor;
+    use serde::ser::Error;
+    use serde::{Deserializer, Serialize, Serializer};
+    use std::fmt::Formatter;
+    use time::format_description::well_known::Rfc3339;
+    use time::OffsetDateTime;
+
+    struct Rfc3339OffsetDateTimeVisitor;
+
+    impl<'de> Visitor<'de> for Rfc3339OffsetDateTimeVisitor {
+        type Value = OffsetDateTime;
+
+        fn expecting(&self, formatter: &mut Formatter) -> std::fmt::Result {
+            formatter.write_str("an rfc3339 `OffsetDateTime`")
+        }
+
+        fn visit_str<E>(self, value: &str) -> Result<Self::Value, E>
+        where
+            E: serde::de::Error,
+        {
+            OffsetDateTime::parse(value, &Rfc3339).map_err(E::custom)
+        }
+    }
+
+    pub(crate) fn deserialize<'de, D>(deserializer: D) -> Result<OffsetDateTime, D::Error>
+    where
+        D: Deserializer<'de>,
+    {
+        deserializer.deserialize_str(Rfc3339OffsetDateTimeVisitor)
+    }
+
+    pub(crate) fn serialize<S>(datetime: &OffsetDateTime, serializer: S) -> Result<S::Ok, S::Error>
+    where
+        S: Serializer,
+    {
+        datetime
+            .format(&Rfc3339)
+            .map_err(S::Error::custom)?
+            .serialize(serializer)
+    }
+}
+
+/// Representation of rewarding interval.
+#[derive(Clone, Copy, Debug, Deserialize, PartialEq, PartialOrd, Serialize)]
+pub struct Interval {
+    id: u32,
+    #[serde(with = "string_rfc3339_offset_date_time")]
+    start: OffsetDateTime,
+    length: Duration,
+}
+
+impl Interval {
+    /// Creates new interval instance.
+    pub const fn new(id: u32, start: OffsetDateTime, length: Duration) -> Self {
+        Interval { id, start, length }
+    }
+
+    /// Returns the next interval.
+    #[must_use]
+    pub fn next_interval(&self) -> Self {
+        Interval {
+            id: self.id + 1,
+            start: self.end(),
+            length: self.length,
+        }
+    }
+
+    /// Returns the last interval.
+    pub fn previous_interval(&self) -> Option<Self> {
+        if self.id > 0 {
+            Some(Interval {
+                id: self.id - 1,
+                start: self.start - self.length,
+                length: self.length,
+            })
+        } else {
+            None
+        }
+    }
+
+    /// Determines whether the provided datetime is contained within the interval
+    ///
+    /// # Arguments
+    ///
+    /// * `datetime`: specified datetime
+    pub fn contains(&self, datetime: OffsetDateTime) -> bool {
+        self.start <= datetime && datetime <= self.end()
+    }
+
+    /// Determines whether the provided unix timestamp is contained within the interval
+    ///
+    /// # Arguments
+    ///
+    /// * `timestamp`: specified timestamp
+    pub fn contains_timestamp(&self, timestamp: i64) -> bool {
+        self.start_unix_timestamp() <= timestamp && timestamp <= self.end_unix_timestamp()
+    }
+
+    /// Returns new instance of [Interval] such that the provided datetime would be within
+    /// its duration.
+    ///
+    /// # Arguments
+    ///
+    /// * `now`: current datetime
+    pub fn current(&self, now: OffsetDateTime) -> Option<Self> {
+        let mut candidate = *self;
+
+        if now > self.start {
+            loop {
+                if candidate.contains(now) {
+                    return Some(candidate);
+                }
+                candidate = candidate.next_interval();
+            }
+        } else {
+            loop {
+                if candidate.contains(now) {
+                    return Some(candidate);
+                }
+                candidate = candidate.previous_interval()?;
+            }
+        }
+    }
+
+    /// Returns new instance of [Interval] such that the provided unix timestamp would be within
+    /// its duration.
+    ///
+    /// # Arguments
+    ///
+    /// * `now_unix`: current unix time
+    pub fn current_with_timestamp(&self, now_unix: i64) -> Option<Self> {
+        let mut candidate = *self;
+
+        if now_unix > self.start_unix_timestamp() {
+            loop {
+                if candidate.contains_timestamp(now_unix) {
+                    return Some(candidate);
+                }
+                candidate = candidate.next_interval();
+            }
+        } else {
+            loop {
+                if candidate.contains_timestamp(now_unix) {
+                    return Some(candidate);
+                }
+                candidate = candidate.previous_interval()?;
+            }
+        }
+    }
+
+    /// Checks whether this interval has already finished
+    ///
+    /// # Arguments
+    ///
+    /// * `now`: current datetime
+    pub fn has_elapsed(&self, now: OffsetDateTime) -> bool {
+        self.end() < now
+    }
+
+    /// Returns id of this interval
+    pub const fn id(&self) -> u32 {
+        self.id
+    }
+
+    /// Determines amount of time left until this interval finishes.
+    ///
+    /// # Arguments
+    ///
+    /// * `now`: current datetime
+    pub fn until_end(&self, now: OffsetDateTime) -> Option<Duration> {
+        let remaining = self.end() - now;
+        if remaining.is_negative() {
+            None
+        } else {
+            remaining.try_into().ok()
+        }
+    }
+
+    /// Returns the starting datetime of this interval.
+    pub const fn start(&self) -> OffsetDateTime {
+        self.start
+    }
+
+    /// Returns the length of this interval.
+    pub const fn length(&self) -> Duration {
+        self.length
+    }
+
+    /// Returns the ending datetime of this interval.
+    pub fn end(&self) -> OffsetDateTime {
+        self.start + self.length
+    }
+
+    /// Returns the unix timestamp of the start of this interval.
+    pub const fn start_unix_timestamp(&self) -> i64 {
+        self.start().unix_timestamp()
+    }
+
+    /// Returns the unix timestamp of the end of this interval.
+    pub fn end_unix_timestamp(&self) -> i64 {
+        self.end().unix_timestamp()
+    }
+}
+
+impl Display for Interval {
+    fn fmt(&self, f: &mut Formatter) -> std::fmt::Result {
+        let length = self.length().as_secs();
+        let full_hours = length / 3600;
+        let rem = length % 3600;
+        write!(
+            f,
+            "Interval {}: {} - {} ({}h {}s)",
+            self.id,
+            self.start(),
+            self.end(),
+            full_hours,
+            rem
+        )
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn previous_interval() {
+        let interval = Interval {
+            id: 1,
+            start: time::macros::datetime!(2021-08-23 12:00 UTC),
+            length: Duration::from_secs(24 * 60 * 60),
+        };
+        let expected = Interval {
+            id: 0,
+            start: time::macros::datetime!(2021-08-22 12:00 UTC),
+            length: Duration::from_secs(24 * 60 * 60),
+        };
+        assert_eq!(expected, interval.previous_interval().unwrap());
+
+        let genesis_interval = Interval {
+            id: 0,
+            start: time::macros::datetime!(2021-08-23 12:00 UTC),
+            length: Duration::from_secs(24 * 60 * 60),
+        };
+        assert!(genesis_interval.previous_interval().is_none());
+    }
+
+    #[test]
+    fn next_interval() {
+        let interval = Interval {
+            id: 0,
+            start: time::macros::datetime!(2021-08-23 12:00 UTC),
+            length: Duration::from_secs(24 * 60 * 60),
+        };
+        let expected = Interval {
+            id: 1,
+            start: time::macros::datetime!(2021-08-24 12:00 UTC),
+            length: Duration::from_secs(24 * 60 * 60),
+        };
+
+        assert_eq!(expected, interval.next_interval())
+    }
+
+    #[test]
+    fn checking_for_datetime_inclusion() {
+        let interval = Interval {
+            id: 100,
+            start: time::macros::datetime!(2021-08-23 12:00 UTC),
+            length: Duration::from_secs(24 * 60 * 60),
+        };
+
+        // it must contain its own boundaries
+        assert!(interval.contains(interval.start));
+        assert!(interval.contains(interval.end()));
+
+        let in_the_midle = interval.start + Duration::from_secs(interval.length.as_secs() / 2);
+        assert!(interval.contains(in_the_midle));
+
+        assert!(!interval.contains(interval.next_interval().end()));
+        assert!(!interval.contains(interval.previous_interval().unwrap().start()));
+    }
+
+    #[test]
+    fn determining_current_interval() {
+        let first_interval = Interval {
+            id: 100,
+            start: time::macros::datetime!(2021-08-23 12:00 UTC),
+            length: Duration::from_secs(24 * 60 * 60),
+        };
+
+        // interval just before
+        let fake_now = first_interval.start - Duration::from_secs(123);
+        assert_eq!(
+            first_interval.previous_interval(),
+            first_interval.current(fake_now)
+        );
+
+        // this interval (start boundary)
+        assert_eq!(
+            first_interval,
+            first_interval.current(first_interval.start).unwrap()
+        );
+
+        // this interval (in the middle)
+        let fake_now = first_interval.start + Duration::from_secs(123);
+        assert_eq!(first_interval, first_interval.current(fake_now).unwrap());
+
+        // this interval (end boundary)
+        assert_eq!(
+            first_interval,
+            first_interval.current(first_interval.end()).unwrap()
+        );
+
+        // next interval
+        let fake_now = first_interval.end() + Duration::from_secs(123);
+        assert_eq!(
+            first_interval.next_interval(),
+            first_interval.current(fake_now).unwrap()
+        );
+
+        // few intervals in the past
+        let fake_now = first_interval.start()
+            - first_interval.length
+            - first_interval.length
+            - first_interval.length;
+        assert_eq!(
+            first_interval
+                .previous_interval()
+                .unwrap()
+                .previous_interval()
+                .unwrap()
+                .previous_interval()
+                .unwrap(),
+            first_interval.current(fake_now).unwrap()
+        );
+
+        // few intervals in the future
+        let fake_now = first_interval.end()
+            + first_interval.length
+            + first_interval.length
+            + first_interval.length;
+        assert_eq!(
+            first_interval
+                .next_interval()
+                .next_interval()
+                .next_interval(),
+            first_interval.current(fake_now).unwrap()
+        );
+    }
+}

common/cosmwasm-smart-contracts/mixnet-contract/src/lib.rs

@@ -3,7 +3,9 @@
 
 mod delegation;
 pub mod error;
+pub mod events;
 mod gateway;
+mod interval;
 pub mod mixnode;
 mod msg;
 mod types;
@@ -16,6 +18,9 @@ pub use delegation::{
     PagedMixDelegationsResponse,
 };
 pub use gateway::{Gateway, GatewayBond, GatewayOwnershipResponse, PagedGatewayResponse};
-pub use mixnode::{Layer, MixNode, MixNodeBond, MixOwnershipResponse, PagedMixnodeResponse};
+pub use interval::Interval;
+pub use mixnode::{
+    Layer, MixNode, MixNodeBond, MixOwnershipResponse, PagedMixnodeResponse, RewardedSetNodeStatus,
+};
 pub use msg::*;
 pub use types::*;

common/cosmwasm-smart-contracts/mixnet-contract/src/mixnode.rs

@@ -5,7 +5,7 @@ use crate::{IdentityKey, SphinxKey};
 use az::CheckedCast;
 use cosmwasm_std::{coin, Addr, Coin, Uint128};
 use log::error;
-use network_defaults::DEFAULT_OPERATOR_EPOCH_COST;
+use network_defaults::DEFAULT_OPERATOR_INTERVAL_COST;
 use schemars::JsonSchema;
 use serde::{Deserialize, Serialize};
 use serde_repr::{Deserialize_repr, Serialize_repr};
@@ -18,6 +18,19 @@ fixed::const_fixed_from_int! {
     const ONE: U128 = 1;
 }
 
+#[cfg_attr(feature = "ts-rs", derive(ts_rs::TS))]
+#[derive(Clone, Copy, Debug, Deserialize, PartialEq, PartialOrd, Serialize, JsonSchema)]
+pub enum RewardedSetNodeStatus {
+    Active,
+    Standby,
+}
+
+impl RewardedSetNodeStatus {
+    pub fn is_active(&self) -> bool {
+        matches!(self, RewardedSetNodeStatus::Active)
+    }
+}
+
 #[cfg_attr(feature = "ts-rs", derive(ts_rs::TS))]
 #[derive(Clone, Debug, Deserialize, PartialEq, PartialOrd, Serialize, JsonSchema)]
 pub struct MixNode {
@@ -53,6 +66,16 @@ pub enum Layer {
     Three = 3,
 }
 
+impl From<Layer> for String {
+    fn from(layer: Layer) -> Self {
+        if layer == Layer::Gateway {
+            "gateway".to_string()
+        } else {
+            (layer as u8).to_string()
+        }
+    }
+}
+
 #[derive(Debug, Clone, JsonSchema, PartialEq, Serialize, Deserialize, Copy)]
 pub struct NodeRewardParams {
     period_reward_pool: Uint128,
@@ -123,7 +146,7 @@ impl NodeRewardParams {
     }
 
     pub fn operator_cost(&self) -> U128 {
-        U128::from_num(self.uptime.u128() / 100u128 * DEFAULT_OPERATOR_EPOCH_COST as u128)
+        U128::from_num(self.uptime.u128() / 100u128 * DEFAULT_OPERATOR_INTERVAL_COST as u128)
     }
 
     pub fn set_reward_blockstamp(&mut self, blockstamp: u64) {
@@ -243,7 +266,7 @@ impl DelegatorRewardParams {
     }
 }
 
-#[derive(Debug)]
+#[derive(Debug, Copy, Clone)]
 pub struct NodeRewardResult {
     reward: U128,
     lambda: U128,
@@ -315,7 +338,7 @@ impl MixNodeBond {
         &self.mix_node
     }
 
-    pub fn total_stake(&self) -> Option<u128> {
+    pub fn total_bond(&self) -> Option<u128> {
         if self.pledge_amount.denom != self.total_delegation.denom {
             None
         } else {
@@ -327,6 +350,11 @@ impl MixNodeBond {
         self.total_delegation.clone()
     }
 
+    pub fn stake_saturation(&self, circulating_supply: u128, rewarded_set_size: u32) -> U128 {
+        self.total_bond_to_circulating_supply(circulating_supply)
+            * U128::from_num(rewarded_set_size)
+    }
+
     pub fn pledge_to_circulating_supply(&self, circulating_supply: u128) -> U128 {
         U128::from_num(self.pledge_amount().amount.u128()) / U128::from_num(circulating_supply)
     }

common/cosmwasm-smart-contracts/mixnet-contract/src/msg.rs

@@ -20,6 +20,9 @@ pub enum ExecuteMsg {
         owner_signature: String,
     },
     UnbondMixnode {},
+    UpdateMixnodeConfig {
+        profit_margin_percent: u8,
+    },
     BondGateway {
         gateway: Gateway,
         owner_signature: String,
@@ -35,28 +38,18 @@ pub enum ExecuteMsg {
         mix_identity: IdentityKey,
     },
 
-    BeginMixnodeRewarding {
-        // nonce of the current rewarding interval
-        rewarding_interval_nonce: u32,
-    },
-
-    FinishMixnodeRewarding {
-        // nonce of the current rewarding interval
-        rewarding_interval_nonce: u32,
-    },
-
     RewardMixnode {
         identity: IdentityKey,
         // percentage value in range 0-100
         params: NodeRewardParams,
 
-        // nonce of the current rewarding interval
-        rewarding_interval_nonce: u32,
+        // id of the current rewarding interval
+        interval_id: u32,
     },
     RewardNextMixDelegators {
         mix_identity: IdentityKey,
-        // nonce of the current rewarding interval
-        rewarding_interval_nonce: u32,
+        // id of the current rewarding interval
+        interval_id: u32,
     },
     DelegateToMixnodeOnBehalf {
         mix_identity: IdentityKey,
@@ -82,6 +75,11 @@ pub enum ExecuteMsg {
     UnbondGatewayOnBehalf {
         owner: String,
     },
+    WriteRewardedSet {
+        rewarded_set: Vec<IdentityKey>,
+        expected_active_set_size: u32,
+    },
+    AdvanceCurrentInterval {},
 }
 
 #[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]
@@ -103,7 +101,6 @@ pub enum QueryMsg {
         address: String,
     },
     StateParams {},
-    CurrentRewardingInterval {},
     // gets all [paged] delegations in the entire network
     // TODO: do we even want that?
     GetAllNetworkDelegations {
@@ -134,12 +131,25 @@ pub enum QueryMsg {
     LayerDistribution {},
     GetRewardPool {},
     GetCirculatingSupply {},
-    GetEpochRewardPercent {},
+    GetIntervalRewardPercent {},
     GetSybilResistancePercent {},
+    GetActiveSetWorkFactor {},
     GetRewardingStatus {
         mix_identity: IdentityKey,
-        rewarding_interval_nonce: u32,
+        interval_id: u32,
     },
+    GetRewardedSet {
+        height: Option<u64>,
+        start_after: Option<IdentityKey>,
+        limit: Option<u32>,
+    },
+    GetRewardedSetHeightsForInterval {
+        interval_id: u32,
+    },
+    GetRewardedSetUpdateDetails {},
+    GetCurrentRewardedSetHeight {},
+    GetCurrentInterval {},
+    GetRewardedSetRefreshBlocks {},
 }
 
 #[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]

common/cosmwasm-smart-contracts/mixnet-contract/src/types.rs

@@ -2,7 +2,7 @@
 // SPDX-License-Identifier: Apache-2.0
 
 use crate::mixnode::DelegatorRewardParams;
-use crate::Layer;
+use crate::{Layer, RewardedSetNodeStatus};
 use cosmwasm_std::{Addr, Uint128};
 use schemars::JsonSchema;
 use serde::{Deserialize, Serialize};
@@ -27,19 +27,12 @@ impl LayerDistribution {
     }
 }
 
-#[derive(Debug, Default, Serialize, Deserialize, Copy, Clone, Eq, PartialEq)]
-pub struct RewardingIntervalResponse {
-    pub current_rewarding_interval_starting_block: u64,
-    pub current_rewarding_interval_nonce: u32,
-    pub rewarding_in_progress: bool,
-}
-
 #[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]
 pub struct ContractStateParams {
-    // so currently epoch_length is being unused and validator API performs rewarding
-    // based on its own epoch length config value. I guess that's fine for time being
+    // so currently interval_length is being unused and validator API performs rewarding
+    // based on its own interval length config value. I guess that's fine for time being
     // however, in the future, the contract constant should be controlling it instead.
-    // pub epoch_length: u32, // length of a rewarding epoch/interval, expressed in hours
+    // pub interval_length: u32, // length of a rewarding interval/interval, expressed in hours
     pub minimum_mixnode_pledge: Uint128, // minimum amount a mixnode must pledge to get into the system
     pub minimum_gateway_pledge: Uint128, // minimum amount a gateway must pledge to get into the system
 
@@ -50,7 +43,6 @@ pub struct ContractStateParams {
     // subset of rewarded mixnodes that are actively receiving mix traffic
     // used to handle shorter-term (e.g. hourly) fluctuations of demand
     pub mixnode_active_set_size: u32,
-    pub active_set_work_factor: u8,
 }
 
 impl Display for ContractStateParams {
@@ -75,11 +67,6 @@ impl Display for ContractStateParams {
             f,
             "mixnode active set size: {}",
             self.mixnode_active_set_size
-        )?;
-        write!(
-            f,
-            "mixnode active set work factor: {}",
-            self.active_set_work_factor
         )
     }
 }
@@ -136,3 +123,23 @@ pub struct MixnetContractVersion {
 pub type IdentityKey = String;
 pub type IdentityKeyRef<'a> = &'a str;
 pub type SphinxKey = String;
+
+#[derive(Clone, Debug, Deserialize, PartialEq, Serialize, JsonSchema)]
+pub struct PagedRewardedSetResponse {
+    pub identities: Vec<(IdentityKey, RewardedSetNodeStatus)>,
+    pub start_next_after: Option<IdentityKey>,
+    pub at_height: u64,
+}
+
+#[derive(Clone, Debug, Deserialize, PartialEq, Serialize, JsonSchema)]
+pub struct RewardedSetUpdateDetails {
+    pub refresh_rate_blocks: u64,
+    pub last_refreshed_block: u64,
+    pub current_height: u64,
+}
+
+#[derive(Clone, Debug, Deserialize, PartialEq, Serialize, JsonSchema)]
+pub struct IntervalRewardedSetHeightsResponse {
+    pub interval_id: u32,
+    pub heights: Vec<u64>,
+}

common/cosmwasm-smart-contracts/vesting-contract/Cargo.toml

@@ -0,0 +1,9 @@
+[package]
+name = "vesting-contract-common"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+cosmwasm-std = "1.0.0-beta3"

common/cosmwasm-smart-contracts/vesting-contract/src/events.rs

@@ -0,0 +1,133 @@
+// Copyright 2022 - Nym Technologies SA <contact@nymtech.net>
+// SPDX-License-Identifier: Apache-2.0
+
+use cosmwasm_std::{Addr, Coin, Event, Timestamp};
+
+// event types
+pub const WITHDRAW_EVENT_TYPE: &str = "vested_coins_withdraw";
+pub const OWNERSHIP_TRANSFER_EVENT_TYPE: &str = "ownership_transfer";
+pub const STAKING_ADDRESS_UPDATE_EVENT_TYPE: &str = "staking_address_update";
+pub const NEW_PERIODIC_VESTING_ACCOUNT_EVENT_TYPE: &str = "new_periodic_vesting_account";
+
+pub const VESTING_DELEGATION_EVENT_TYPE: &str = "vesting_delegation";
+pub const VESTING_UNDELEGATION_EVENT_TYPE: &str = "vesting_undelegation";
+pub const VESTING_GATEWAY_BONDING_EVENT_TYPE: &str = "vesting_gateway_bonding";
+pub const VESTING_GATEWAY_UNBONDING_EVENT_TYPE: &str = "vesting_gateway_unbonding";
+pub const VESTING_MIXNODE_BONDING_EVENT_TYPE: &str = "vesting_mixnode_bonding";
+pub const VESTING_MIXNODE_UNBONDING_EVENT_TYPE: &str = "vesting_mixnode_unbonding";
+
+pub const TRACK_MIXNODE_UNBOND_EVENT_TYPE: &str = "track_mixnode_unbond";
+pub const TRACK_GATEWAY_UNBOND_EVENT_TYPE: &str = "track_gateway_unbond";
+pub const TRACK_UNDELEGATION_EVENT_TYPE: &str = "track_undelegation";
+
+// attributes that are used in multiple places
+pub const OWNER_KEY: &str = "owner";
+pub const AMOUNT_KEY: &str = "amount";
+
+// event-specific attributes
+
+// withdraw
+pub const REMAINING_SPENDABLE_KEY: &str = "remaining_spendable";
+
+// ownership transfer
+pub const FROM_ACCOUNT_KEY: &str = "from";
+pub const TO_ACCOUNT_KEY: &str = "to";
+pub const NO_VALUE_VALUE: &str = "none";
+
+// new vesting account
+pub const START_TIME_KEY: &str = "start_time";
+pub const STAKING_ADDRESS_KEY: &str = "staking_address";
+
+// OPEN QUESTION: would it make sense to also emit amount of vesting/locked coins here?
+// however, then it would require additional storage reads.
+pub fn new_vested_coins_withdraw_event(
+    address: &Addr,
+    amount: &Coin,
+    remaining_spendable: &Coin,
+) -> Event {
+    Event::new(WITHDRAW_EVENT_TYPE)
+        .add_attribute(OWNER_KEY, address)
+        .add_attribute(AMOUNT_KEY, amount.to_string())
+        .add_attribute(REMAINING_SPENDABLE_KEY, remaining_spendable.to_string())
+}
+
+pub fn new_ownership_transfer_event(from: &Addr, to: &Addr) -> Event {
+    Event::new(OWNERSHIP_TRANSFER_EVENT_TYPE)
+        .add_attribute(FROM_ACCOUNT_KEY, from)
+        .add_attribute(TO_ACCOUNT_KEY, to)
+}
+
+pub fn new_staking_address_update_event(from: &Option<Addr>, to: &Option<Addr>) -> Event {
+    let mut event = Event::new(OWNERSHIP_TRANSFER_EVENT_TYPE);
+
+    if let Some(from) = from {
+        event = event.add_attribute(FROM_ACCOUNT_KEY, from)
+    } else {
+        event = event.add_attribute(FROM_ACCOUNT_KEY, NO_VALUE_VALUE);
+    }
+
+    if let Some(to) = to {
+        event = event.add_attribute(TO_ACCOUNT_KEY, to)
+    } else {
+        event = event.add_attribute(TO_ACCOUNT_KEY, NO_VALUE_VALUE);
+    }
+
+    event
+}
+
+pub fn new_periodic_vesting_account_event(
+    owner_address: &Addr,
+    amount: &Coin,
+    staking_address: &Option<Addr>,
+    start_time: Timestamp,
+) -> Event {
+    let mut event = Event::new(NEW_PERIODIC_VESTING_ACCOUNT_EVENT_TYPE)
+        .add_attribute(OWNER_KEY, owner_address)
+        .add_attribute(AMOUNT_KEY, amount.to_string());
+
+    if let Some(staking_address) = staking_address {
+        event = event.add_attribute(STAKING_ADDRESS_KEY, staking_address);
+    }
+
+    event.add_attribute(START_TIME_KEY, start_time.to_string())
+}
+
+// In most cases the events are rather barebone as there's no point in attaching
+// bunch of data to them as it would be redundant. It is because in most cases when the event is emitted
+// a call to the mixnet contract is made that throws another event with relevant attributes already attached.
+
+pub fn new_vesting_gateway_bonding_event() -> Event {
+    Event::new(VESTING_GATEWAY_BONDING_EVENT_TYPE)
+}
+
+pub fn new_vesting_gateway_unbonding_event() -> Event {
+    Event::new(VESTING_GATEWAY_UNBONDING_EVENT_TYPE)
+}
+
+pub fn new_vesting_mixnode_bonding_event() -> Event {
+    Event::new(VESTING_MIXNODE_BONDING_EVENT_TYPE)
+}
+
+pub fn new_vesting_mixnode_unbonding_event() -> Event {
+    Event::new(VESTING_MIXNODE_UNBONDING_EVENT_TYPE)
+}
+
+pub fn new_vesting_delegation_event() -> Event {
+    Event::new(VESTING_DELEGATION_EVENT_TYPE)
+}
+
+pub fn new_vesting_undelegation_event() -> Event {
+    Event::new(VESTING_UNDELEGATION_EVENT_TYPE)
+}
+
+pub fn new_track_mixnode_unbond_event() -> Event {
+    Event::new(TRACK_MIXNODE_UNBOND_EVENT_TYPE)
+}
+
+pub fn new_track_gateway_unbond_event() -> Event {
+    Event::new(TRACK_GATEWAY_UNBOND_EVENT_TYPE)
+}
+
+pub fn new_track_undelegation_event() -> Event {
+    Event::new(TRACK_UNDELEGATION_EVENT_TYPE)
+}

common/cosmwasm-smart-contracts/vesting-contract/src/lib.rs

@@ -0,0 +1,4 @@
+// Copyright 2022 - Nym Technologies SA <contact@nymtech.net>
+// SPDX-License-Identifier: Apache-2.0
+
+pub mod events;

common/credentials/src/coconut/bandwidth.rs

@@ -27,7 +27,7 @@ pub struct BandwidthVoucherAttributes {
     pub binding_number: PrivateAttribute,
     // the value (e.g., bandwidth) encoded in this voucher
     pub voucher_value: PublicAttribute,
-    // a field with public information, e.g., type of voucher, epoch etc.
+    // a field with public information, e.g., type of voucher, interval etc.
     pub voucher_info: PublicAttribute,
 }
 

common/crypto/Cargo.toml

@@ -9,7 +9,7 @@ edition = "2018"
 [dependencies]
 aes = { version = "0.7.4", features = ["ctr"] }
 bs58 = "0.4.0"
-blake3 = { version = "1.0.0", features = ["traits-preview"] }
+blake3 = { version = "~1.2.0", features = ["traits-preview"] }
 digest = "0.9.0"
 generic-array = "0.14"
 hkdf = "0.11.0"
@@ -19,7 +19,9 @@ x25519-dalek = "1.1"
 ed25519-dalek = "1.0"
 log = "0.4"
 rand = { version = "0.7.3", features = ["wasm-bindgen"] }
+subtle-encoding = { version = "0.5", features =  ["bech32-preview"]}
 
 # internal
 nymsphinx-types = { path = "../nymsphinx/types" }
 pemstore = { path = "../../common/pemstore" }
+config = { path="../../common/config" }

common/crypto/src/asymmetric/identity/mod.rs

@@ -189,6 +189,13 @@ impl PrivateKey {
         let sig = expanded_secret_key.sign(message, &public_key.0);
         Signature(sig)
     }
+
+    /// Signs text with the provided Ed25519 private key, returning a base58 signature
+    pub fn sign_text(&self, text: &str) -> String {
+        let signature_bytes = self.sign(text.as_ref()).to_bytes();
+        let signature = bs58::encode(signature_bytes).into_string();
+        signature
+    }
 }
 
 impl PemStorableKey for PrivateKey {

common/crypto/src/bech32_address_validation.rs

@@ -0,0 +1,87 @@
+use config::defaults;
+use subtle_encoding::bech32;
+
+#[derive(Debug, Clone, PartialEq)]
+pub enum Bech32Error {
+    DecodeFailed(String),
+    WrongPrefix(String),
+}
+
+/// Try to decode the address (to make sure it's a valid bech32 encoding)
+pub fn try_bech32_decode(address: &str) -> Result<String, Bech32Error> {
+    match bech32::decode(address) {
+        Err(e) => Err(Bech32Error::DecodeFailed(e.to_string())),
+        Ok((prefix, _)) => Ok(prefix),
+    }
+}
+
+pub fn validate_bech32_prefix(address: &str) -> Result<(), Bech32Error> {
+    let prefix = try_bech32_decode(address)?;
+
+    if prefix == defaults::BECH32_PREFIX {
+        Ok(())
+    } else {
+        Err(Bech32Error::WrongPrefix(format!(
+            "your bech32 address prefix should be {}, not {}",
+            defaults::BECH32_PREFIX,
+            prefix
+        )))
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    mod decoding_bech32_addresses {
+        use super::*;
+
+        #[test]
+        fn total_crap_fails() {
+            let res = try_bech32_decode("crap");
+            assert_eq!(
+                Err(Bech32Error::DecodeFailed("bad encoding".to_string())),
+                res
+            );
+        }
+
+        #[test]
+        fn bad_checksum_fails() {
+            let chopped_address = "punk1h3w4nj7kny5dfyjw2le4vm74z03v9vd4dstpu"; // this has the final "0" chopped off
+            let res = try_bech32_decode(chopped_address);
+            assert_eq!(
+                Err(Bech32Error::DecodeFailed("checksum mismatch".to_string())),
+                res
+            );
+        }
+
+        #[test]
+        fn good_address_returns_prefix() {
+            let prefix = try_bech32_decode("punk1h3w4nj7kny5dfyjw2le4vm74z03v9vd4dstpu0");
+            assert_eq!(Ok("punk".to_string()), prefix);
+        }
+    }
+
+    #[cfg(test)]
+    mod ensuring_correct_bech32_prefix {
+        use super::*;
+
+        #[test]
+        fn wrong_prefix_fails() {
+            assert_eq!(
+                Err(Bech32Error::WrongPrefix(
+                    "your bech32 address prefix should be nymt, not punk".to_string()
+                )),
+                validate_bech32_prefix("punk1h3w4nj7kny5dfyjw2le4vm74z03v9vd4dstpu0")
+            )
+        }
+
+        #[test]
+        fn correct_prefix_works() {
+            assert_eq!(
+                Ok(()),
+                validate_bech32_prefix("nymt1z9egw0knv47nmur0p8vk4rcx59h9gg4zuxrrr9")
+            )
+        }
+    }
+}

common/crypto/src/hkdf.rs

@@ -22,7 +22,7 @@ where
 
     let hkdf = Hkdf::<D>::new(salt, ikm);
     let mut okm = vec![0u8; okm_length];
-    hkdf.expand(info.unwrap_or_else(|| &[]), &mut okm)?;
+    hkdf.expand(info.unwrap_or(&[]), &mut okm)?;
 
     Ok(okm)
 }

common/crypto/src/lib.rs

@@ -2,6 +2,7 @@
 // SPDX-License-Identifier: Apache-2.0
 
 pub mod asymmetric;
+pub mod bech32_address_validation;
 pub mod crypto_hash;
 pub mod hkdf;
 pub mod hmac;

common/mixnode-common/src/verloc/mod.rs

@@ -77,6 +77,7 @@ impl Config {
     }
 }
 
+#[must_use]
 pub struct ConfigBuilder(Config);
 
 impl ConfigBuilder {

common/network-defaults/Cargo.toml

@@ -7,7 +7,7 @@ edition = "2018"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+cfg-if = "1.0.0"
 hex-literal = "0.3.3"
 serde = {version = "1.0", features = ["derive"]}
 url = "2.2"
-time = { version = "0.3", features = ["macros"] }

common/network-defaults/build.rs

@@ -0,0 +1,11 @@
+// Copyright 2021 - Nym Technologies SA <contact@nymtech.net>
+// SPDX-License-Identifier: Apache-2.0
+
+fn main() {
+    match option_env!("NETWORK") {
+        Some("milhon") => println!("cargo:rustc-cfg=network=\"milhon\"",),
+        None | Some("sandbox") => println!("cargo:rustc-cfg=network=\"sandbox\"",),
+        Some("qa") => println!("cargo:rustc-cfg=network=\"qa\""),
+        _ => panic!("No such network"),
+    }
+}

common/network-defaults/src/all.rs

@@ -0,0 +1,130 @@
+// Copyright 2021 - Nym Technologies SA <contact@nymtech.net>
+// SPDX-License-Identifier: Apache-2.0
+
+use serde::{Deserialize, Serialize};
+use std::collections::HashMap;
+
+use crate::{milhon, qa, sandbox, ValidatorDetails};
+
+#[derive(Clone, Debug, Deserialize, Eq, Hash, PartialEq, Serialize)]
+pub enum Network {
+    MILHON,
+    QA,
+    SANDBOX,
+}
+
+#[derive(Clone, Debug, Deserialize, Serialize)]
+pub struct NetworkDetails {
+    bech32_prefix: String,
+    denom: String,
+    mixnet_contract_address: String,
+    vesting_contract_address: String,
+    bandwidth_claim_contract_address: String,
+    rewarding_validator_address: String,
+    validators: Vec<ValidatorDetails>,
+}
+
+#[derive(Clone, Debug, Deserialize, Serialize)]
+pub struct SupportedNetworks {
+    networks: HashMap<Network, NetworkDetails>,
+}
+
+impl SupportedNetworks {
+    pub fn new(support: Vec<Network>) -> Self {
+        let mut networks = HashMap::new();
+
+        for network in support {
+            match network {
+                Network::MILHON => networks.insert(
+                    Network::MILHON,
+                    NetworkDetails {
+                        bech32_prefix: String::from(milhon::BECH32_PREFIX),
+                        denom: String::from(milhon::DENOM),
+                        mixnet_contract_address: String::from(milhon::MIXNET_CONTRACT_ADDRESS),
+                        vesting_contract_address: String::from(milhon::VESTING_CONTRACT_ADDRESS),
+                        bandwidth_claim_contract_address: String::from(
+                            milhon::BANDWIDTH_CLAIM_CONTRACT_ADDRESS,
+                        ),
+                        rewarding_validator_address: String::from(
+                            milhon::REWARDING_VALIDATOR_ADDRESS,
+                        ),
+                        validators: milhon::validators(),
+                    },
+                ),
+                Network::QA => networks.insert(
+                    Network::QA,
+                    NetworkDetails {
+                        bech32_prefix: String::from(qa::BECH32_PREFIX),
+                        denom: String::from(qa::DENOM),
+                        mixnet_contract_address: String::from(qa::MIXNET_CONTRACT_ADDRESS),
+                        vesting_contract_address: String::from(qa::VESTING_CONTRACT_ADDRESS),
+                        bandwidth_claim_contract_address: String::from(
+                            qa::BANDWIDTH_CLAIM_CONTRACT_ADDRESS,
+                        ),
+                        rewarding_validator_address: String::from(qa::REWARDING_VALIDATOR_ADDRESS),
+                        validators: qa::validators(),
+                    },
+                ),
+                Network::SANDBOX => networks.insert(
+                    Network::SANDBOX,
+                    NetworkDetails {
+                        bech32_prefix: String::from(sandbox::BECH32_PREFIX),
+                        denom: String::from(sandbox::DENOM),
+                        mixnet_contract_address: String::from(sandbox::MIXNET_CONTRACT_ADDRESS),
+                        vesting_contract_address: String::from(sandbox::VESTING_CONTRACT_ADDRESS),
+                        bandwidth_claim_contract_address: String::from(
+                            sandbox::BANDWIDTH_CLAIM_CONTRACT_ADDRESS,
+                        ),
+                        rewarding_validator_address: String::from(
+                            sandbox::REWARDING_VALIDATOR_ADDRESS,
+                        ),
+                        validators: sandbox::validators(),
+                    },
+                ),
+            };
+        }
+        SupportedNetworks { networks }
+    }
+
+    pub fn bech32_prefix(&self, network: Network) -> Option<&str> {
+        self.networks
+            .get(&network)
+            .map(|network_details| network_details.bech32_prefix.as_str())
+    }
+
+    pub fn denom(&self, network: Network) -> Option<&str> {
+        self.networks
+            .get(&network)
+            .map(|network_details| network_details.denom.as_str())
+    }
+
+    pub fn mixnet_contract_address(&self, network: Network) -> Option<&str> {
+        self.networks
+            .get(&network)
+            .map(|network_details| network_details.mixnet_contract_address.as_str())
+    }
+
+    pub fn vesting_contract_address(&self, network: Network) -> Option<&str> {
+        self.networks
+            .get(&network)
+            .map(|network_details| network_details.vesting_contract_address.as_str())
+    }
+
+    pub fn bandwidth_claim_contract_address(&self, network: Network) -> Option<&str> {
+        self.networks
+            .get(&network)
+            .map(|network_details| network_details.bandwidth_claim_contract_address.as_str())
+    }
+
+    pub fn rewarding_validator_address(&self, network: Network) -> Option<&str> {
+        self.networks
+            .get(&network)
+            .map(|network_details| network_details.rewarding_validator_address.as_str())
+    }
+
+    pub fn validators(&self, network: Network) -> Option<&Vec<ValidatorDetails>> {
+        self.networks
+            .get(&network)
+            .map(|network_details| &network_details.validators)
+    }
+}

common/network-defaults/src/lib.rs

@@ -1,11 +1,65 @@
 // Copyright 2020 - Nym Technologies SA <contact@nymtech.net>
 // SPDX-License-Identifier: Apache-2.0
 use serde::{Deserialize, Serialize};
-use std::time::Duration;
-use time::OffsetDateTime;
 use url::Url;
 
+pub mod all;
 pub mod eth_contract;
+mod milhon;
+mod qa;
+mod sandbox;
+
+cfg_if::cfg_if! {
+    if #[cfg(network = "milhon")] {
+        pub const BECH32_PREFIX: &str = milhon::BECH32_PREFIX;
+        pub const DENOM: &str = milhon::DENOM;
+
+        pub const DEFAULT_MIXNET_CONTRACT_ADDRESS: &str = milhon::MIXNET_CONTRACT_ADDRESS;
+        pub const DEFAULT_VESTING_CONTRACT_ADDRESS: &str = milhon::VESTING_CONTRACT_ADDRESS;
+        pub const DEFAULT_BANDWIDTH_CLAIM_CONTRACT_ADDRESS: &str = milhon::BANDWIDTH_CLAIM_CONTRACT_ADDRESS;
+        pub const DEFAULT_REWARDING_VALIDATOR_ADDRESS: &str = milhon::REWARDING_VALIDATOR_ADDRESS;
+
+        pub fn default_validators() -> Vec<ValidatorDetails> {
+            milhon::validators()
+        }
+
+        pub fn default_network() -> all::Network {
+            all::Network::MILHON
+        }
+    } else if #[cfg(network = "qa")] {
+        pub const BECH32_PREFIX: &str = qa::BECH32_PREFIX;
+        pub const DENOM: &str = qa::DENOM;
+
+        pub const DEFAULT_MIXNET_CONTRACT_ADDRESS: &str = qa::MIXNET_CONTRACT_ADDRESS;
+        pub const DEFAULT_VESTING_CONTRACT_ADDRESS: &str = qa::VESTING_CONTRACT_ADDRESS;
+        pub const DEFAULT_BANDWIDTH_CLAIM_CONTRACT_ADDRESS: &str = qa::BANDWIDTH_CLAIM_CONTRACT_ADDRESS;
+        pub const DEFAULT_REWARDING_VALIDATOR: &str = qa::REWARDING_VALIDATOR_ADDRESS;
+
+        pub fn default_validators() -> Vec<ValidatorDetails> {
+            qa::validators()
+        }
+
+        pub fn default_network() -> all::Network {
+            all::Network::QA
+        }
+    } else if #[cfg(network = "sandbox")] {
+        pub const BECH32_PREFIX: &str = sandbox::BECH32_PREFIX;
+        pub const DENOM: &str = sandbox::DENOM;
+
+        pub const DEFAULT_MIXNET_CONTRACT_ADDRESS: &str = sandbox::MIXNET_CONTRACT_ADDRESS;
+        pub const DEFAULT_VESTING_CONTRACT_ADDRESS: &str = sandbox::VESTING_CONTRACT_ADDRESS;
+        pub const DEFAULT_BANDWIDTH_CLAIM_CONTRACT_ADDRESS: &str = sandbox::BANDWIDTH_CLAIM_CONTRACT_ADDRESS;
+        pub const DEFAULT_REWARDING_VALIDATOR: &str = sandbox::REWARDING_VALIDATOR_ADDRESS;
+
+        pub fn default_validators() -> Vec<ValidatorDetails> {
+            sandbox::validators()
+        }
+
+        pub fn default_network() -> all::Network {
+            all::Network::SANDBOX
+        }
+    }
+}
 
 #[derive(Debug, Serialize, Deserialize, Clone)]
 pub struct ValidatorDetails {
@@ -38,16 +92,6 @@ impl ValidatorDetails {
     }
 }
 
-pub fn default_validators() -> Vec<ValidatorDetails> {
-    vec![
-        ValidatorDetails::new(
-            "https://testnet-milhon-validator1.nymtech.net",
-            Some("https://testnet-milhon-validator1.nymtech.net/api"),
-        ),
-        ValidatorDetails::new("https://testnet-milhon-validator2.nymtech.net", None),
-    ]
-}
-
 pub fn default_nymd_endpoints() -> Vec<Url> {
     default_validators()
         .iter()
@@ -62,10 +106,14 @@ pub fn default_api_endpoints() -> Vec<Url> {
         .collect()
 }
 
-pub const DEFAULT_MIXNET_CONTRACT_ADDRESS: &str = "punk10pyejy66429refv3g35g2t7am0was7yalwrzen";
-pub const DEFAULT_VESTING_CONTRACT_ADDRESS: &str = "";
-pub const REWARDING_VALIDATOR_ADDRESS: &str = "punk1v9qauwdq5terag6uvfsdytcs2d0sdmfdy7hgk3";
+pub const ETH_CONTRACT_ADDRESS: [u8; 20] =
+    hex_literal::hex!("9fEE3e28c17dbB87310A51F13C4fbf4331A6f102");
+// Name of the event triggered by the eth contract. If the event name is changed,
+// this would also need to be changed; It is currently tested against the json abi
+pub const ETH_EVENT_NAME: &str = "Burned";
+pub const ETH_BURN_FUNCTION_NAME: &str = "burnTokenForAccessCode";
 
+// Ethereum constants used for token bridge
 /// How much bandwidth (in bytes) one token can buy
 const BYTES_PER_TOKEN: u64 = 1024 * 1024 * 1024;
 /// How many ERC20 tokens should be burned to buy bandwidth
@@ -73,20 +121,10 @@ pub const TOKENS_TO_BURN: u64 = 10;
 /// Default bandwidth (in bytes) that we try to buy
 pub const BANDWIDTH_VALUE: u64 = TOKENS_TO_BURN * BYTES_PER_TOKEN;
 
-// Ethereum constants used for token bridge
-pub const ETH_CONTRACT_ADDRESS: [u8; 20] =
-    hex_literal::hex!("9fEE3e28c17dbB87310A51F13C4fbf4331A6f102");
 pub const ETH_MIN_BLOCK_DEPTH: usize = 7;
-pub const COSMOS_CONTRACT_ADDRESS: &str = "punk1jld76tqw4wnpfenmay2xkv86nr3j0w426eka82";
-// Name of the event triggered by the eth contract. If the event name is changed,
-// this would also need to be changed; It is currently tested against the json abi
-pub const ETH_EVENT_NAME: &str = "Burned";
-pub const ETH_BURN_FUNCTION_NAME: &str = "burnTokenForAccessCode";
 
 /// Defaults Cosmos Hub/ATOM path
 pub const COSMOS_DERIVATION_PATH: &str = "m/44'/118'/0'/0/0";
-pub const BECH32_PREFIX: &str = "punk";
-pub const DENOM: &str = "upunk";
 // as set by validators in their configs
 // (note that the 'amount' postfix is relevant here as the full gas price also includes denom)
 pub const GAS_PRICE_AMOUNT: f64 = 0.025;
@@ -112,10 +150,9 @@ pub const DEFAULT_VALIDATOR_API_PORT: u16 = 8080;
 pub const VALIDATOR_API_VERSION: &str = "v1";
 
 // REWARDING
-pub const DEFAULT_FIRST_EPOCH_START: OffsetDateTime = time::macros::datetime!(2021-08-23 12:00 UTC);
-pub const DEFAULT_EPOCH_LENGTH: Duration = Duration::from_secs(24 * 60 * 60 * 30); // 30 days
-/// We'll be assuming a few more things, profit margin and cost function. Since we don't have relialable package measurement, we'll be using uptime. We'll also set the value of 1 Nym to 1 $, to be able to translate epoch costs to Nyms. We'll also assume a cost of 40$ per epoch(month), converting that to Nym at our 1$ rate translates to 40_000_000 uNyms
-pub const DEFAULT_OPERATOR_EPOCH_COST: u64 = 40_000_000; // 40$/(30 days) at 1 Nym == 1$
+
+/// We'll be assuming a few more things, profit margin and cost function. Since we don't have relialable package measurement, we'll be using uptime. We'll also set the value of 1 Nym to 1 $, to be able to translate interval costs to Nyms. We'll also assume a cost of 40$ per interval(month), converting that to Nym at our 1$ rate translates to 40_000_000 uNyms
+pub const DEFAULT_OPERATOR_INTERVAL_COST: u64 = 40_000_000; // 40$/(30 days) at 1 Nym == 1$
 
 // TODO: is there a way to get this from the chain
 pub const TOTAL_SUPPLY: u128 = 1_000_000_000_000_000;

common/network-defaults/src/milhon.rs

@@ -0,0 +1,23 @@
+// Copyright 2021 - Nym Technologies SA <contact@nymtech.net>
+// SPDX-License-Identifier: Apache-2.0
+
+use crate::ValidatorDetails;
+
+pub(crate) const BECH32_PREFIX: &str = "punk";
+pub(crate) const DENOM: &str = "upunk";
+
+pub(crate) const MIXNET_CONTRACT_ADDRESS: &str = "punk10pyejy66429refv3g35g2t7am0was7yalwrzen";
+pub(crate) const VESTING_CONTRACT_ADDRESS: &str = "";
+pub(crate) const BANDWIDTH_CLAIM_CONTRACT_ADDRESS: &str =
+    "punk1jld76tqw4wnpfenmay2xkv86nr3j0w426eka82";
+pub(crate) const REWARDING_VALIDATOR_ADDRESS: &str = "punk1v9qauwdq5terag6uvfsdytcs2d0sdmfdy7hgk3";
+
+pub(crate) fn validators() -> Vec<ValidatorDetails> {
+    vec![
+        ValidatorDetails::new(
+            "https://testnet-milhon-validator1.nymtech.net",
+            Some("https://testnet-milhon-validator1.nymtech.net/api"),
+        ),
+        ValidatorDetails::new("https://testnet-milhon-validator2.nymtech.net", None),
+    ]
+}

common/network-defaults/src/qa.rs

@@ -0,0 +1,20 @@
+// Copyright 2021 - Nym Technologies SA <contact@nymtech.net>
+// SPDX-License-Identifier: Apache-2.0
+
+use crate::ValidatorDetails;
+
+pub(crate) const BECH32_PREFIX: &str = "nymt";
+pub(crate) const DENOM: &str = "unymt";
+
+pub(crate) const MIXNET_CONTRACT_ADDRESS: &str = "nymt14hj2tavq8fpesdwxxcu44rty3hh90vhuysqrsr";
+pub(crate) const VESTING_CONTRACT_ADDRESS: &str = "nymt17p9rzwnnfxcjp32un9ug7yhhzgtkhvl9f8xzkv";
+pub(crate) const BANDWIDTH_CLAIM_CONTRACT_ADDRESS: &str =
+    "nymt17p9rzwnnfxcjp32un9ug7yhhzgtkhvl9f8xzkv";
+pub(crate) const REWARDING_VALIDATOR_ADDRESS: &str = "nymt1dn52nx8wv9wkqmrvj6tcmdzh4es6jt8tr7f6j9";
+
+pub(crate) fn validators() -> Vec<ValidatorDetails> {
+    vec![ValidatorDetails::new(
+        "https://qa-validator.nymtech.net",
+        Some("https://qa-validator.nymtech.net/api"),
+    )]
+}

common/network-defaults/src/sandbox.rs

@@ -0,0 +1,20 @@
+// Copyright 2021 - Nym Technologies SA <contact@nymtech.net>
+// SPDX-License-Identifier: Apache-2.0
+
+use crate::ValidatorDetails;
+
+pub(crate) const BECH32_PREFIX: &str = "nymt";
+pub(crate) const DENOM: &str = "unymt";
+
+pub(crate) const MIXNET_CONTRACT_ADDRESS: &str = "nymt1ghd753shjuwexxywmgs4xz7x2q732vcnstz02j";
+pub(crate) const VESTING_CONTRACT_ADDRESS: &str = "nymt1nc5tatafv6eyq7llkr2gv50ff9e22mnfp9pc5s";
+pub(crate) const BANDWIDTH_CLAIM_CONTRACT_ADDRESS: &str =
+    "nymt17p9rzwnnfxcjp32un9ug7yhhzgtkhvl9f8xzkv";
+pub(crate) const REWARDING_VALIDATOR_ADDRESS: &str = "nymt17zujduc46wvkwvp6f062mm5xhr7jc3fewvqu9e";
+
+pub(crate) fn validators() -> Vec<ValidatorDetails> {
+    vec![ValidatorDetails::new(
+        "https://sandbox-validator.nymtech.net",
+        Some("https://sandbox-validator.nymtech.net/api"),
+    )]
+}

common/nymsphinx/Cargo.toml

@@ -25,7 +25,7 @@ crypto = { path = "../crypto" }
 topology = { path = "../topology" }
 
 [dev-dependencies]
-mixnet-contract = { path = "../mixnet-contract" }
+mixnet-contract-common = { path = "../cosmwasm-smart-contracts/mixnet-contract" }
 
 # do not include this when compiling into wasm as it somehow when combined together with reqwest, it will require
 # net2 via tokio-util -> tokio -> mio -> net2

common/nymsphinx/src/preparer/mod.rs

@@ -54,6 +54,7 @@ impl From<NymTopologyError> for PreparationError {
 /// an optional reply-SURB, padding it to appropriate length, encrypting its content,
 /// and chunking into appropriate size [`Fragment`]s.
 #[cfg_attr(not(target_arch = "wasm32"), derive(Clone))]
+#[must_use]
 pub struct MessagePreparer<R: CryptoRng + Rng> {
     /// Instance of a cryptographically secure random number generator.
     rng: R,
@@ -386,13 +387,7 @@ where
         // (note: surb_ack_bytes contains SURB_ACK_FIRST_HOP || SURB_ACK_DATA )
         let packet_payload: Vec<_> = surb_ack_bytes
             .into_iter()
-            .chain(
-                reply_surb
-                    .encryption_key()
-                    .compute_digest()
-                    .to_vec()
-                    .into_iter(),
-            )
+            .chain(reply_surb.encryption_key().compute_digest().iter().copied())
             .chain(reply_content.into_iter())
             .collect();
 

common/nymsphinx/src/receiver.rs

@@ -58,6 +58,7 @@ impl MessageReceiver {
     }
 
     /// Allows setting non-default number of expected mix hops in the network.
+    #[must_use]
     pub fn with_mix_hops(mut self, hops: u8) -> Self {
         self.num_mix_hops = hops;
         self
@@ -186,7 +187,7 @@ impl Default for MessageReceiver {
 mod message_receiver {
     use super::*;
     use crypto::asymmetric::identity;
-    use mixnet_contract::Layer;
+    use mixnet_contract_common::Layer;
     use nymsphinx_addressing::clients::Recipient;
     use rand::rngs::OsRng;
     use std::collections::HashMap;

common/topology/Cargo.toml

@@ -13,7 +13,7 @@ rand = { version = "0.7.3", features = ["wasm-bindgen"] }
 
 ## internal
 crypto = { path = "../crypto" }
-mixnet-contract = { path = "../mixnet-contract" }
+mixnet-contract-common = { path = "../cosmwasm-smart-contracts/mixnet-contract" }
 nymsphinx-addressing = { path = "../nymsphinx/addressing" }
 nymsphinx-types = { path = "../nymsphinx/types" }
 version-checker = { path = "../version-checker" }

common/topology/src/filter.rs

@@ -9,6 +9,7 @@ pub trait Versioned: Clone {
 }
 
 pub trait VersionFilterable<T> {
+    #[must_use]
     fn filter_by_version(&self, expected_version: &str) -> Self;
 }
 

common/topology/src/gateway.rs

@@ -3,7 +3,7 @@
 
 use crate::{filter, NetworkAddress};
 use crypto::asymmetric::{encryption, identity};
-use mixnet_contract::GatewayBond;
+use mixnet_contract_common::GatewayBond;
 use nymsphinx_addressing::nodes::{NodeIdentity, NymNodeRoutingAddress};
 use nymsphinx_types::Node as SphinxNode;
 use std::convert::{TryFrom, TryInto};

common/topology/src/lib.rs

@@ -3,7 +3,7 @@
 
 use crate::filter::VersionFilterable;
 use log::warn;
-use mixnet_contract::{GatewayBond, MixNodeBond};
+use mixnet_contract_common::{GatewayBond, MixNodeBond};
 use nymsphinx_addressing::nodes::NodeIdentity;
 use nymsphinx_types::Node as SphinxNode;
 use rand::Rng;
@@ -206,10 +206,12 @@ impl NymTopology {
         true
     }
 
+    #[must_use]
     pub fn filter_system_version(&self, expected_version: &str) -> Self {
         self.filter_node_versions(expected_version, expected_version)
     }
 
+    #[must_use]
     pub fn filter_node_versions(
         &self,
         expected_mix_version: &str,
@@ -272,7 +274,7 @@ mod converting_mixes_to_vec {
         use crypto::asymmetric::{encryption, identity};
 
         use super::*;
-        use mixnet_contract::Layer;
+        use mixnet_contract_common::Layer;
 
         #[test]
         fn returns_a_vec_with_hashmap_values() {

common/topology/src/mix.rs

@@ -3,7 +3,7 @@
 
 use crate::{filter, NetworkAddress};
 use crypto::asymmetric::{encryption, identity};
-use mixnet_contract::{Layer, MixNodeBond};
+use mixnet_contract_common::{Layer, MixNodeBond};
 use nymsphinx_addressing::nodes::NymNodeRoutingAddress;
 use nymsphinx_types::Node as SphinxNode;
 use std::convert::{TryFrom, TryInto};

contracts/Cargo.lock

@@ -17,9 +17,9 @@ dependencies = [
 
 [[package]]
 name = "anyhow"
-version = "1.0.49"
+version = "1.0.52"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0a03e93e97a28fbc9f42fbc5ba0886a3c67eb637b476dbee711f80a6ffe8223d"
+checksum = "84450d0b4a8bd1ba4144ce8ce718fbc5d071358b1e5384bace6536b3d1f2d5b3"
 
 [[package]]
 name = "arrayref"
@@ -41,9 +41,30 @@ checksum = "cdb031dd78e28731d87d56cc8ffef4a8f36ca26c38fe2de700543e627f8a464a"
 
 [[package]]
 name = "az"
-version = "1.1.2"
+version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9d6dff4a1892b54d70af377bf7a17064192e822865791d812957f21e3108c325"
+checksum = "f771a5d1f5503f7f4279a30f3643d3421ba149848b89ecaaec0ea2acf04a5ac4"
+
+[[package]]
+name = "bandwidth-claim"
+version = "0.1.0"
+dependencies = [
+ "bandwidth-claim-contract",
+ "config",
+ "cosmwasm-std",
+ "cosmwasm-storage",
+ "schemars",
+ "serde",
+ "thiserror",
+]
+
+[[package]]
+name = "bandwidth-claim-contract"
+version = "0.1.0"
+dependencies = [
+ "schemars",
+ "serde",
+]
 
 [[package]]
 name = "base64"
@@ -102,7 +123,7 @@ version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4152116fd6e9dadb291ae18fc1ec3575ed6d84c29642d97890f4b4a3417297e4"
 dependencies = [
- "generic-array 0.14.4",
+ "generic-array 0.14.5",
 ]
 
 [[package]]
@@ -122,9 +143,9 @@ checksum = "771fe0050b883fcc3ea2359b1a96bcfbc090b7116eae7c3c512c7a083fdf23d3"
 
 [[package]]
 name = "bumpalo"
-version = "3.8.0"
+version = "3.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8f1e260c3a9040a7c19a12468758f4c16f31a81a1fe087482be9570ec864bb6c"
+checksum = "a4a45a46ab1f2412e53d3a0ade76ffad2025804294569aae387231a0cd6e0899"
 
 [[package]]
 name = "byte-tools"
@@ -134,9 +155,9 @@ checksum = "e3b5ca7a04898ad4bcd41c90c5285445ff5b791899bb1b0abdd2a2aa791211d7"
 
 [[package]]
 name = "bytemuck"
-version = "1.7.2"
+version = "1.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "72957246c41db82b8ef88a5486143830adeb8227ef9837740bdec67724cf2c5b"
+checksum = "439989e6b8c38d1b6570a384ef1e49c8848128f5a97f3914baef02920842712f"
 
 [[package]]
 name = "byteorder"
@@ -188,7 +209,7 @@ version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7ee52072ec15386f770805afd189a01c8841be8696bed250fa2f13c4c0d6dfb7"
 dependencies = [
- "generic-array 0.14.4",
+ "generic-array 0.14.5",
 ]
 
 [[package]]
@@ -216,23 +237,17 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "245097e9a4535ee1e3e3931fcfcd55a796a44c643e8596ff6566d68f09b87bbc"
 
 [[package]]
-name = "cosmos_contract"
+name = "contracts-common"
 version = "0.1.0"
 dependencies = [
- "config",
  "cosmwasm-std",
- "cosmwasm-storage",
- "erc20-bridge-contract",
- "schemars",
- "serde",
- "thiserror",
 ]
 
 [[package]]
 name = "cosmwasm-crypto"
-version = "1.0.0-beta2"
+version = "1.0.0-beta3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c16b255449b3f5cd7fa4b79acd5225b5185655261087a3d8aaac44f88a0e23e9"
+checksum = "a380b87642204557629c9b72988c47b55fbfe6d474960adba56b22331504956a"
 dependencies = [
  "digest 0.9.0",
  "ed25519-zebra",
@@ -243,18 +258,18 @@ dependencies = [
 
 [[package]]
 name = "cosmwasm-derive"
-version = "1.0.0-beta2"
+version = "1.0.0-beta3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "abad1a6ff427a2f66890a4dce6354b4563cd07cee91a942300e011c921c09ed2"
+checksum = "866713b2fe13f23038c7d8824c3059d1f28dd94685fb406d1533c4eeeefeefae"
 dependencies = [
  "syn",
 ]
 
 [[package]]
 name = "cosmwasm-schema"
-version = "1.0.0-beta2"
+version = "1.0.0-beta3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fe52b19d45fe3f8359db6cc24df44dbe05e5ae32539afc0f5b7f790a21aa6fd0"
+checksum = "818b928263c09a3269c2bed22494a62107a43ef87900e273af8ad2cb9f7e4440"
 dependencies = [
  "schemars",
  "serde_json",
@@ -262,9 +277,9 @@ dependencies = [
 
 [[package]]
 name = "cosmwasm-std"
-version = "1.0.0-beta2"
+version = "1.0.0-beta3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1660ee3d5734672e1eb4f0ceda403e2d83345e15143a48845f340f3252ce99a6"
+checksum = "8dbb9939b31441dfa9af3ec9740c8a24d585688401eff1b6b386abb7ad0d10a8"
 dependencies = [
  "base64",
  "cosmwasm-crypto",
@@ -278,9 +293,9 @@ dependencies = [
 
 [[package]]
 name = "cosmwasm-storage"
-version = "1.0.0-beta2"
+version = "1.0.0-beta3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cf3b4efe3b4f86df668520a02e9a29c23eea99b64dfcacb0e59b98346418af7f"
+checksum = "b4a4e55f0d64fed54cd2202301b8d466af8de044589247dabd77a4222f52f749"
 dependencies = [
  "cosmwasm-std",
  "serde",
@@ -309,15 +324,17 @@ dependencies = [
  "blake3",
  "bs58",
  "cipher",
+ "config",
  "digest 0.9.0",
  "ed25519-dalek",
- "generic-array 0.14.4",
+ "generic-array 0.14.5",
  "hkdf",
  "hmac",
  "log",
  "nymsphinx-types",
  "pemstore",
  "rand",
+ "subtle-encoding",
  "x25519-dalek",
 ]
 
@@ -327,7 +344,7 @@ version = "0.2.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f83bd3bb4314701c568e340cd8cf78c975aa0ca79e03d3f6d1677d5b0c9c0c03"
 dependencies = [
- "generic-array 0.14.4",
+ "generic-array 0.14.5",
  "rand_core 0.6.3",
  "subtle 2.4.1",
  "zeroize",
@@ -349,7 +366,7 @@ version = "0.11.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b1d1a86f49236c215f271d40892d5fc950490551400b02ef360692c29815c714"
 dependencies = [
- "generic-array 0.14.4",
+ "generic-array 0.14.5",
  "subtle 2.4.1",
 ]
 
@@ -377,9 +394,9 @@ dependencies = [
 
 [[package]]
 name = "cw-storage-plus"
-version = "0.10.3"
+version = "0.11.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d3b8b840947313c1a1cccf056836cd79a60b4526bdcd6582995be37dc97be4ae"
+checksum = "7d7ee1963302b0ac2a9d42fe0faec826209c17452bfd36fbfd9d002a88929261"
 dependencies = [
  "cosmwasm-std",
  "schemars",
@@ -388,9 +405,9 @@ dependencies = [
 
 [[package]]
 name = "der"
-version = "0.4.4"
+version = "0.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "28e98c534e9c8a0483aa01d6f6913bc063de254311bd267c9cf535e9b70e15b2"
+checksum = "79b71cca7d95d7681a4b3b9cdf63c8dbc3730d0584c2c74e31416d64a90493f4"
 dependencies = [
  "const-oid",
 ]
@@ -410,7 +427,7 @@ version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d3dd60d1080a57a05ab032377049e0591415d2b31afd7028356dbf3cc6dcb066"
 dependencies = [
- "generic-array 0.14.4",
+ "generic-array 0.14.5",
 ]
 
 [[package]]
@@ -476,7 +493,7 @@ checksum = "beca177dcb8eb540133e7680baff45e7cc4d93bf22002676cec549f82343721b"
 dependencies = [
  "crypto-bigint",
  "ff",
- "generic-array 0.14.4",
+ "generic-array 0.14.5",
  "group",
  "pkcs8",
  "rand_core 0.6.3",
@@ -504,14 +521,6 @@ dependencies = [
  "syn",
 ]
 
-[[package]]
-name = "erc20-bridge-contract"
-version = "0.1.0"
-dependencies = [
- "schemars",
- "serde",
-]
-
 [[package]]
 name = "fake-simd"
 version = "0.1.2"
@@ -530,9 +539,9 @@ dependencies = [
 
 [[package]]
 name = "fixed"
-version = "1.10.0"
+version = "1.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6d333a26ec13a023c6dff4b7584de4d323cfee2e508f5dd2bbee6669e4f7efdf"
+checksum = "80a9a8cb2e34880a498f09367089339bda5e12d6f871640f947850f7113058c0"
 dependencies = [
  "az",
  "bytemuck",
@@ -562,9 +571,9 @@ dependencies = [
 
 [[package]]
 name = "generic-array"
-version = "0.14.4"
+version = "0.14.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "501466ecc8a30d1d3b7fc9229b122b2ce8ed6e9d9223f1138d4babb253e51817"
+checksum = "fd48d33ec7f05fbfa152300fdad764757cbded343c1aa1cff2fbaf4134851803"
 dependencies = [
  "typenum",
  "version_check",
@@ -596,9 +605,9 @@ dependencies = [
 
 [[package]]
 name = "getset"
-version = "0.1.1"
+version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "24b328c01a4d71d2d8173daa93562a73ab0fe85616876f02500f53d82948c504"
+checksum = "e45727250e75cc04ff2846a66397da8ef2b3db8e40e0cef4df67950a07621eb9"
 dependencies = [
  "proc-macro-error",
  "proc-macro2",
@@ -608,9 +617,9 @@ dependencies = [
 
 [[package]]
 name = "git2"
-version = "0.13.24"
+version = "0.13.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "845e007a28f1fcac035715988a234e8ec5458fd825b20a20c7dec74237ef341f"
+checksum = "f29229cc1b24c0e6062f6e742aa3e256492a5323365e5ed3413599f8a5eff7d6"
 dependencies = [
  "bitflags",
  "libc",
@@ -711,9 +720,9 @@ dependencies = [
 
 [[package]]
 name = "itoa"
-version = "0.4.8"
+version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b71991ff56294aa922b450139ee08b3bfc70982c6b2c7562771375cf73542dd4"
+checksum = "1aab8fc367588b89dcee83ab0fd66b72b50b72fa1904d7095045ace2b0c81c35"
 
 [[package]]
 name = "jobserver"
@@ -759,15 +768,15 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
-version = "0.2.107"
+version = "0.2.112"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fbe5e23404da5b4f555ef85ebed98fb4083e55a00c317800bc2a50ede9f3d219"
+checksum = "1b03d17f364a3a042d5e5d46b053bbbf82c92c9430c592dd4c064dc6ee997125"
 
 [[package]]
 name = "libgit2-sys"
-version = "0.12.25+1.3.0"
+version = "0.12.26+1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8f68169ef08d6519b2fe133ecc637408d933c0174b23b80bb2f79828966fbaab"
+checksum = "19e1c899248e606fbfe68dcb31d8b0176ebab833b103824af31bddf4b7457494"
 dependencies = [
  "cc",
  "libc",
@@ -829,21 +838,6 @@ checksum = "a3e378b66a060d48947b590737b30a1be76706c8dd7b8ba0f2fe3989c68a853f"
 [[package]]
 name = "mixnet-contract"
 version = "0.1.0"
-dependencies = [
- "az",
- "cosmwasm-std",
- "fixed",
- "log",
- "network-defaults",
- "schemars",
- "serde",
- "serde_repr",
- "thiserror",
-]
-
-[[package]]
-name = "mixnet-contracts"
-version = "0.1.0"
 dependencies = [
  "bs58",
  "config",
@@ -853,23 +847,41 @@ dependencies = [
  "crypto",
  "cw-storage-plus",
  "fixed",
- "mixnet-contract",
+ "mixnet-contract-common",
  "rand",
  "rand_chacha",
  "schemars",
  "serde",
  "thiserror",
+ "time 0.3.6",
  "vergen",
  "vesting-contract",
 ]
 
+[[package]]
+name = "mixnet-contract-common"
+version = "0.1.0"
+dependencies = [
+ "az",
+ "contracts-common",
+ "cosmwasm-std",
+ "fixed",
+ "log",
+ "network-defaults",
+ "schemars",
+ "serde",
+ "serde_repr",
+ "thiserror",
+ "time 0.3.6",
+]
+
 [[package]]
 name = "network-defaults"
 version = "0.1.0"
 dependencies = [
+ "cfg-if",
  "hex-literal",
  "serde",
- "time 0.3.5",
  "url",
 ]
 
@@ -893,6 +905,15 @@ dependencies = [
  "libm",
 ]
 
+[[package]]
+name = "num_threads"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "71a1eb3a36534514077c1e079ada2fb170ef30c47d203aa6916138cf882ecd52"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "nymsphinx-types"
 version = "0.1.0"
@@ -902,9 +923,9 @@ dependencies = [
 
 [[package]]
 name = "once_cell"
-version = "1.8.0"
+version = "1.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "692fcb63b64b1758029e0a96ee63e049ce8c5948587f2f7208df04625e5f6b56"
+checksum = "da32515d9f6e6e489d7bc9d84c71b060db7247dc035bbe44eac88cf87486d8d5"
 
 [[package]]
 name = "opaque-debug"
@@ -997,15 +1018,15 @@ dependencies = [
 
 [[package]]
 name = "pkg-config"
-version = "0.3.22"
+version = "0.3.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "12295df4f294471248581bc09bef3c38a5e46f1e36d6a37353621a0c6c357e1f"
+checksum = "58893f751c9b0412871a09abd62ecd2a00298c6c83befa223ef98c52aef40cbe"
 
 [[package]]
 name = "ppv-lite86"
-version = "0.2.15"
+version = "0.2.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ed0cfbc8191465bed66e1718596ee0b0b35d5ee1f41c5df2189d0fe8bde535ba"
+checksum = "eb9f9e6e233e5c4a35559a617bf40a4ec447db2e84c20b55a6f83167b7e57872"
 
 [[package]]
 name = "proc-macro-error"
@@ -1033,9 +1054,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.32"
+version = "1.0.36"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ba508cc11742c0dc5c1659771673afbab7a0efab23aa17e854cbab0837ed0b43"
+checksum = "c7342d5883fbccae1cc37a2353b09c87c9b0f3afd73f5fb9bba687a1f733b029"
 dependencies = [
  "unicode-xid",
 ]
@@ -1048,9 +1069,9 @@ checksum = "a993555f31e5a609f617c12db6250dedcac1b0a85076912c436e6fc9b2c8e6a3"
 
 [[package]]
 name = "quote"
-version = "1.0.10"
+version = "1.0.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "38bc8cc6a5f2e3655e0899c1b848643b2562f853f114bfec7be120678e3ace05"
+checksum = "47aa80447ce4daf1717500037052af176af5d38cc3e571d9ec1c7353fc10c87d"
 dependencies = [
  "proc-macro2",
 ]
@@ -1141,21 +1162,21 @@ dependencies = [
 
 [[package]]
 name = "rustversion"
-version = "1.0.5"
+version = "1.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "61b3909d758bb75c79f23d4736fac9433868679d3ad2ea7a61e3c25cfda9a088"
+checksum = "f2cc38e8fa666e2de3c4aba7edeb5ffc5246c1c2ed0e3d17e560aeeba736b23f"
 
 [[package]]
 name = "ryu"
-version = "1.0.5"
+version = "1.0.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "71d301d4193d031abdd79ff7e3dd721168a9572ef3fe51a1517aba235bd8f86e"
+checksum = "73b4b750c782965c211b42f022f59af1fbceabdd026623714f104152f1ec149f"
 
 [[package]]
 name = "schemars"
-version = "0.8.7"
+version = "0.8.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "271ac0c667b8229adf70f0f957697c96fafd7486ab7481e15dc5e45e3e6a4368"
+checksum = "c6b5a3c80cea1ab61f4260238409510e814e38b4b563c06044edf91e7dc070e3"
 dependencies = [
  "dyn-clone",
  "schemars_derive",
@@ -1165,9 +1186,9 @@ dependencies = [
 
 [[package]]
 name = "schemars_derive"
-version = "0.8.7"
+version = "0.8.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6ebda811090b257411540779860bc09bf321bc587f58d2c5864309d1566214e7"
+checksum = "41ae4dce13e8614c46ac3c38ef1c0d668b101df6ac39817aebdaa26642ddae9b"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1183,27 +1204,27 @@ checksum = "568a8e6258aa33c13358f81fd834adb854c6f7c9468520910a9b1e8fac068012"
 
 [[package]]
 name = "serde"
-version = "1.0.130"
+version = "1.0.133"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f12d06de37cf59146fbdecab66aa99f9fe4f78722e3607577a5375d66bd0c913"
+checksum = "97565067517b60e2d1ea8b268e59ce036de907ac523ad83a0475da04e818989a"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde-json-wasm"
-version = "0.3.1"
+version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "50eef3672ec8fa45f3457fd423ba131117786784a895548021976117c1ded449"
+checksum = "042ac496d97e5885149d34139bad1d617192770d7eb8f1866da2317ff4501853"
 dependencies = [
  "serde",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.130"
+version = "1.0.133"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d7bc1a1ab1961464eae040d96713baa5a724a8152c1222492465b54322ec508b"
+checksum = "ed201699328568d8d08208fdd080e3ff594e6c422e438b6705905da01005d537"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1223,9 +1244,9 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.70"
+version = "1.0.74"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e277c495ac6cd1a01a58d0a0c574568b4d1ddf14f59965c6a58b8d96400b54f3"
+checksum = "ee2bb9cd061c5865d345bb02ca49fcef1391741b672b54a0bf7b679badec3142"
 dependencies = [
  "itoa",
  "ryu",
@@ -1257,9 +1278,9 @@ dependencies = [
 
 [[package]]
 name = "sha2"
-version = "0.9.8"
+version = "0.9.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b69f9a4c9740d74c5baa3fd2e547f9525fa8088a8a958e0ca2409a514e33f5fa"
+checksum = "4d58a1e1bf39749807d89cf2d98ac2dfa0ff1cb3faa38fbb64dd88ac8013d800"
 dependencies = [
  "block-buffer 0.9.0",
  "cfg-if",
@@ -1329,10 +1350,19 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6bdef32e8150c2a081110b42772ffe7d7c9032b606bc226c8260fd97e0976601"
 
 [[package]]
-name = "syn"
-version = "1.0.81"
+name = "subtle-encoding"
+version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f2afee18b8beb5a596ecb4a2dce128c719b4ba399d34126b9e4396e3f9860966"
+checksum = "7dcb1ed7b8330c5eed5441052651dd7a12c75e2ed88f2ec024ae1fa3a5e59945"
+dependencies = [
+ "zeroize",
+]
+
+[[package]]
+name = "syn"
+version = "1.0.85"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a684ac3dcd8913827e18cd09a68384ee66c1de24157e3c556c9ab16d85695fb7"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1383,11 +1413,13 @@ dependencies = [
 
 [[package]]
 name = "time"
-version = "0.3.5"
+version = "0.3.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "41effe7cfa8af36f439fac33861b66b049edc6f9a32331e2312660529c1c24ad"
+checksum = "c8d54b9298e05179c335de2b9645d061255bcd5155f843b3e328d2cfe0a5b413"
 dependencies = [
+ "itoa",
  "libc",
+ "num_threads",
  "time-macros",
 ]
 
@@ -1423,9 +1455,9 @@ dependencies = [
 
 [[package]]
 name = "typenum"
-version = "1.14.0"
+version = "1.15.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b63708a265f51345575b27fe43f9500ad611579e764c79edbc2037b1121959ec"
+checksum = "dcf81ac59edc17cc8697ff311e8f5ef2d99fcbd9817b34cec66f90b6c3dfd987"
 
 [[package]]
 name = "ucd-trie"
@@ -1486,9 +1518,9 @@ checksum = "accd4ea62f7bb7a82fe23066fb0957d48ef677f6eeb8215f372f52e48bb32426"
 
 [[package]]
 name = "vergen"
-version = "5.1.18"
+version = "5.1.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1d48696c0fbbdafd9553e14c4584b4b9583931e9474a3ae506f1872b890d0b47"
+checksum = "6cf88d94e969e7956d924ba70741316796177fa0c79a2c9f4ab04998d96e966e"
 dependencies = [
  "anyhow",
  "cfg-if",
@@ -1503,9 +1535,9 @@ dependencies = [
 
 [[package]]
 name = "version_check"
-version = "0.9.3"
+version = "0.9.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5fecdca9a5291cc2b8dcf7dc02453fee791a280f3743cb0905f8822ae463b3fe"
+checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
 
 [[package]]
 name = "vesting-contract"
@@ -1514,10 +1546,18 @@ dependencies = [
  "config",
  "cosmwasm-std",
  "cw-storage-plus",
- "mixnet-contract",
+ "mixnet-contract-common",
  "schemars",
  "serde",
  "thiserror",
+ "vesting-contract-common",
+]
+
+[[package]]
+name = "vesting-contract-common"
+version = "0.1.0"
+dependencies = [
+ "cosmwasm-std",
 ]
 
 [[package]]

contracts/Cargo.toml

@@ -1,5 +1,5 @@
 [workspace]
-members = ["erc20-bridge", "mixnet", "vesting"]
+members = ["bandwidth-claim", "mixnet", "vesting"]
 
 [profile.release]
 opt-level = 3