frost

type Driver interface {
	// Round1 emits the participant's nonce commitments (D_i, E_i).
	Round1(ctx context.Context, ceremony types.CeremonyID) ([]byte, error)
	// Round2 emits the signature share z_i.
	Round2(ctx context.Context, ceremony types.CeremonyID, round1 [][]byte) ([]byte, error)
	// Finalize aggregates {z_i} into the single Ed25519 (R, z).
	Finalize(ctx context.Context, ceremony types.CeremonyID, round2 [][]byte) (types.Proof, error)
}

type Verifier interface {
	VerifyShare(subject [32]byte, share types.Share, payload []byte) error
	VerifyFinal(subject [32]byte, proof types.Proof) error
}