FrostSigner

chie_crypto::frost

Struct FrostSigner 

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pub struct FrostSigner { /* private fields */ }
Expand description

FROST signer instance

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impl FrostSigner

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pub fn new( signer_id: usize, secret_share: FrostSecretShare, group_public_key: PublicKey, ) -> Self

Create a new FROST signer

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pub fn preprocess(&mut self)

Preprocess: Generate nonce commitment pair

This can be done in advance before knowing the message to be signed. Generates random nonces (d, e) and computes commitments (D, E).

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pub fn get_nonce_commitment(&self) -> FrostNonceCommitment

Get nonce commitment for Round 1

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pub fn sign( &self, message: &[u8], signing_set: &[usize], commitments: &[FrostNonceCommitment], ) -> FrostResult<PartialSignature>

Sign message in Round 2

§Arguments
  • message - Message to sign
  • signing_set - List of signer IDs participating in this signature
  • commitments - Nonce commitments from all signers in signing_set

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