INNER CODE UNIT · Rust

verify_signature_share

ZcashFoundation/frost · frost-core/src/lib.rs:754

pub fn verify_signature_share<C: Ciphersuite>(
    identifier: Identifier<C>,
    verifying_share: &keys::VerifyingShare<C>,
    signature_share: &round2::SignatureShare<C>,
    signing_package: &SigningPackage<C>,
    verifying_key: &VerifyingKey<C>,
) -> Result<(), Error<C>> {
    // In order to reuse `pre_aggregate()`, we need to create some "dummy" containers
    let signature_shares = BTreeMap::from([(identifier, *signature_share)]);
    let verifying_shares = BTreeMap::from([(identifier, *verifying_share)]);
    let public_key_package = PublicKeyPackage {
        verifying_shares,
        verifying_key: *verifying_key,
        // Use None since we don't have the min_signers value here. This
        // can only cause problems if the `pre_aggregate` function relies on it.
        // This has been documented in `pre_aggregate()`.
        min_signers: None,
        header: Header::default(),

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