Struct Cmp20SigningPipeline 

pub struct Cmp20SigningPipeline {
    pub threshold: u32,
    pub party_count: u32,
    pub paillier_keys: Vec<PaillierKeypair>,
    pub key_shares: Vec<Scalar>,
    pub public_key: AffinePoint,
}

Full CMP20 signing pipeline for T-of-N.

Fields

threshold: u32

party_count: u32

paillier_keys: Vec<PaillierKeypair>

Each party’s Paillier keypair. 642-bit primes (~1284-bit N): the MtA proofs require N > q⁵ + q² for honest no-wrap shares.

key_shares: Vec<Scalar>

Each party’s secret key share x_i.

public_key: AffinePoint

Joint public key Y = sum(x_i * G).

Implementations

impl Cmp20SigningPipeline

pub fn new(threshold: u32, party_count: u32, key_shares: Vec<Scalar>) -> Self

Create a pipeline with pre-generated shares (from DKG).

pub fn sign(&self, message: &[u8]) -> Result<Signature, String>

Run the full CMP20 signing protocol for a message. Returns a standard P-256 ECDSA signature.

pub fn verify(&self, message: &[u8], signature: &Signature) -> bool

Verify a signature against the joint public key.