Class FrostCoordinator

Index

Constructors

Methods

aggregateSignatures createSigningPackage verify

Constructors

constructor

new FrostCoordinator(
__namedParameters: { max: any; min: any },
): FrostCoordinator
Parameters
- __namedParameters: { max: any; min: any }
Returns FrostCoordinator
- Defined in signing.ts:147
new FrostCoordinator(config: FrostConfig): FrostCoordinator
Parameters
- config: FrostConfig
Returns FrostCoordinator
- Defined in signing.ts:148

Methods

aggregateSignatures

aggregateSignatures(
signingPackage: SigningPackage,
signatureShares: SignatureShare[],
): Uint8Array<ArrayBuffer>
Aggregate signature shares into final signature Returns a 64-byte concatenated signature (R || z) like Ed25519
Parameters
- signingPackage: SigningPackage
- signatureShares: SignatureShare[]
Returns Uint8Array<ArrayBuffer>
- Defined in signing.ts:212

createSigningPackage

createSigningPackage(
    message: Uint8Array,
    commitmentShares: CommitmentShare[],
    participantIds: ParticipantId[],
    groupPublicKey: GroupElement,
): Promise<SigningPackage>
Coordinate the signing process by collecting commitments and creating signing package
Parameters
- message: Uint8Array
- commitmentShares: CommitmentShare[]
- participantIds: ParticipantId[]
- groupPublicKey: GroupElement
Returns Promise<SigningPackage>
- Defined in signing.ts:161

verify

verify(
    signature: Uint8Array,
    message: Uint8Array,
    verifyingKey: GroupElement,
): Promise<boolean>
Verify a FROST signature Takes a 64-byte concatenated signature (R || z) like Ed25519 Uses cofactored verification as per RFC 9591: [8][z]B = [8]R + [8][c]PK
Parameters
- signature: Uint8Array
- message: Uint8Array
- verifyingKey: GroupElement
Returns Promise<boolean>
- Defined in signing.ts:264