fix: crs hex::decode | NPG-000 (#629)

In proof systems, provers and the verifiers rely on a common set of
parameters, sometimes referred to as the common reference string (CRS).

we are using the the DigestOf<Blake2b256, VotePlan>; as the CRS

align with on the fly load tester updates

src/sign/Cargo.toml

@@ -32,9 +32,6 @@ serde_json = "1.0"
 serde_yaml = "0.8.17"
 rand = "0.8.3"
 bech32 = "0.8"
-
-
 rand_core = { version = "0.5.1", default-features = false }
-
-
-ed25519-dalek = "1.0.1"
+ed25519-dalek = "1.0.1"
+reqwest = { version = "*", features = ["blocking","json"] }

src/sign/README.md

@@ -1,11 +1,12 @@
-# Fragment generator and signer:
+# **Vote** Fragment generator and signer:
+Generates vote fragments and signs them accordingly
 
 ## Specifications
  [*see here for format.abnf*](../chain-libs/chain-impl-mockchain/doc/format.abnf)
 
  [*see here for format.md*](../chain-libs/chain-impl-mockchain/doc/format.md)
 
-## Ingredients for generating a fragment
+## Ingredients for generating a **vote** fragment
 
 - Election public key
 - Alice public key
@@ -21,7 +22,7 @@
 cargo build --release -p sign
 ```  
 
-*Generate raw fragment in byte representation*
+*Generate raw vote fragment in byte representation*
 
 ```bash
 

src/sign/src/fragment.rs

@@ -181,7 +181,7 @@ mod tests {
     use jormungandr_lib::interfaces::AccountIdentifier;
 
     #[test]
-    fn test_fragment_generation() {
+    fn fragment_generation() {
         let mut csprng = OsRng;
 
         // User key for signing witness
@@ -206,7 +206,7 @@ mod tests {
         // vote
         let vote = chain_vote::Vote::new(2, 1 as usize).unwrap();
 
-        let crs = chain_vote::Crs::from_hash(vote_plan_id.as_bytes());
+        let crs = chain_vote::Crs::from_hash(&hex::decode(vote_plan_id.as_bytes()).unwrap());
 
         let (ciphertexts, proof) = ek.encrypt_and_prove_vote(&mut rng, &crs, vote);
         let (proof, encrypted_vote) =
@@ -289,7 +289,7 @@ mod tests {
     }
 
     #[test]
-    fn test_encrypted_vote_generation() {
+    fn encrypted_vote_generation() {
         let mut rng = ChaCha20Rng::from_seed([0u8; 32]);
 
         // vote plan id

src/sign/src/main.rs

@@ -15,7 +15,8 @@ use std::error::Error;
 
 use crate::fragment::{compose_encrypted_vote_part, generate_vote_fragment};
 
-mod fragment;
+pub mod fragment;
+pub mod network;
 
 ///
 /// Args defines and declares CLI behaviour within the context of clap
@@ -65,10 +66,9 @@ fn main() -> Result<(), Box<dyn Error>> {
     // join sk+pk together, api requirement
     sk.extend(pk.clone());
     let keypair: Keypair = Keypair::from_bytes(&sk)?;
-
-    // vote
     let vote = chain_vote::Vote::new(2, 1_usize)?;
-    let crs = chain_vote::Crs::from_hash(args.vote_plan_id.clone().as_bytes());
+    // common reference string
+    let crs = chain_vote::Crs::from_hash(&hex::decode(args.vote_plan_id.clone())?);
 
     // parse ek key
     let ek = ElectionPublicKey::from_bytes(&election_pk)