Set voter to DA attestation (#498)

nodes/nomos-node/config.yaml

@@ -57,6 +57,7 @@ http:
 
 da:
   da_protocol:
+    voter: [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
     num_attestations: 1
   backend:
     max_capacity: 10

nomos-cli/Cargo.toml

@@ -27,4 +27,5 @@ full-replication = { path = "../nomos-da/full-replication" }
 reqwest = "0.11"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
-thiserror = "1.0"
+thiserror = "1.0"
+hex = "0.4.3"

nomos-cli/src/da/disseminate.rs

@@ -1,6 +1,7 @@
 use clap::{Args, ValueEnum};
-use full_replication::{AbsoluteNumber, Attestation, Certificate, FullReplication};
+use full_replication::{AbsoluteNumber, Attestation, Certificate, FullReplication, Voter};
 use futures::StreamExt;
+use hex::FromHex;
 use nomos_core::{da::DaProtocol, wire};
 use nomos_da::network::{adapters::libp2p::Libp2pAdapter, NetworkAdapter};
 use nomos_network::{backends::libp2p::Libp2p, NetworkService};
@@ -17,6 +18,7 @@ use overwatch_rs::{
 use reqwest::{Client, Url};
 use serde::Serialize;
 use std::{
+    error::Error,
     path::PathBuf,
     sync::{mpsc::Sender, Arc},
     time::Duration,
@@ -218,9 +220,12 @@ impl TryFrom<DaProtocolChoice> for FullReplication<AbsoluteNumber<Attestation, C
     type Error = &'static str;
     fn try_from(value: DaProtocolChoice) -> Result<Self, Self::Error> {
         match (value.da_protocol, value.settings) {
-            (Protocol::FullReplication, ProtocolSettings { full_replication }) => Ok(
-                FullReplication::new(AbsoluteNumber::new(full_replication.num_attestations)),
-            ),
+            (Protocol::FullReplication, ProtocolSettings { full_replication }) => {
+                Ok(FullReplication::new(
+                    full_replication.voter,
+                    AbsoluteNumber::new(full_replication.num_attestations),
+                ))
+            }
         }
     }
 }
@@ -239,13 +244,20 @@ pub enum Protocol {
 impl Default for FullReplicationSettings {
     fn default() -> Self {
         Self {
+            voter: [0; 32],
             num_attestations: 1,
         }
     }
 }
 
 #[derive(Debug, Clone, Args)]
 pub struct FullReplicationSettings {
+    #[clap(long, value_parser = parse_key, default_value = "0000000000000000000000000000000000000000000000000000000000000000")]
+    pub voter: Voter,
     #[clap(long, default_value = "1")]
     pub num_attestations: usize,
 }
+
+fn parse_key(s: &str) -> Result<Voter, Box<dyn Error + Send + Sync + 'static>> {
+    Ok(<[u8; 32]>::from_hex(s)?)
+}

nomos-da/full-replication/src/lib.rs

@@ -24,15 +24,17 @@ pub mod openapi {
 
 #[derive(Debug, Clone)]
 pub struct FullReplication<CertificateStrategy> {
+    voter: Voter,
     certificate_strategy: CertificateStrategy,
     output_buffer: Vec<Bytes>,
     attestations: Vec<Attestation>,
     output_certificate_buf: Vec<Certificate>,
 }
 
 impl<S> FullReplication<S> {
-    pub fn new(strategy: S) -> Self {
+    pub fn new(voter: Voter, strategy: S) -> Self {
         Self {
+            voter,
             certificate_strategy: strategy,
             output_buffer: Vec::new(),
             attestations: Vec::new(),
@@ -69,6 +71,7 @@ impl<A, C> AbsoluteNumber<A, C> {
 
 #[derive(Clone, Debug, Serialize, Deserialize)]
 pub struct Settings {
+    pub voter: Voter,
     pub num_attestations: usize,
 }
 
@@ -92,9 +95,11 @@ impl CertificateStrategy for AbsoluteNumber<Attestation, Certificate> {
     }
 }
 
-#[derive(Debug, Clone, Serialize, Deserialize, Eq, Hash, PartialEq)]
 #[cfg_attr(feature = "openapi", derive(utoipa::ToSchema))]
+pub type Voter = [u8; 32];
 
+#[derive(Debug, Clone, Serialize, Deserialize, Eq, Hash, PartialEq)]
+#[cfg_attr(feature = "openapi", derive(utoipa::ToSchema))]
 pub struct Blob {
     data: Bytes,
 }
@@ -120,7 +125,7 @@ impl blob::Blob for Blob {
 #[cfg_attr(feature = "openapi", derive(utoipa::ToSchema))]
 pub struct Attestation {
     blob: [u8; 32],
-    voter: [u8; 32],
+    voter: Voter,
 }
 
 impl attestation::Attestation for Attestation {
@@ -188,7 +193,10 @@ impl DaProtocol for FullReplication<AbsoluteNumber<Attestation, Certificate>> {
     type Settings = Settings;
 
     fn new(settings: Self::Settings) -> Self {
-        Self::new(AbsoluteNumber::new(settings.num_attestations))
+        Self::new(
+            settings.voter,
+            AbsoluteNumber::new(settings.num_attestations),
+        )
     }
 
     fn encode<T: AsRef<[u8]>>(&self, data: T) -> Vec<Self::Blob> {
@@ -208,8 +216,7 @@ impl DaProtocol for FullReplication<AbsoluteNumber<Attestation, Certificate>> {
     fn attest(&self, blob: &Self::Blob) -> Self::Attestation {
         Attestation {
             blob: hasher(blob),
-            // TODO: voter id?
-            voter: [0; 32],
+            voter: self.voter,
         }
     }
 

tests/src/nodes/nomos.rs

@@ -256,7 +256,7 @@ fn create_node_configs(
 
 fn create_node_config(
     nodes: Vec<NodeId>,
-    private_key: [u8; 32],
+    id: [u8; 32],
     threshold: Fraction,
     timeout: Duration,
     mixnet_node_config: Option<MixnetNodeConfig>,
@@ -285,7 +285,7 @@ fn create_node_config(
             },
         },
         consensus: CarnotSettings {
-            private_key,
+            private_key: id,
             overlay_settings: TreeOverlaySettings {
                 nodes,
                 leader: RoundRobin::new(),
@@ -314,6 +314,7 @@ fn create_node_config(
         metrics: Default::default(),
         da: nomos_da::Settings {
             da_protocol: full_replication::Settings {
+                voter: id,
                 num_attestations: 1,
             },
             backend: nomos_da::backend::memory_cache::BlobCacheSettings {

tests/src/tests/cli.rs

@@ -28,6 +28,7 @@ async fn disseminate_blob() {
             da_protocol: Protocol::FullReplication,
             settings: ProtocolSettings {
                 full_replication: FullReplicationSettings {
+                    voter: [0; 32],
                     num_attestations: 1,
                 },
             },