endorsement

type SigningIdentity interface {
	// Serialize returns a byte representation of this identity which is used to verify
	// messages signed by this SigningIdentity
	Serialize() ([]byte, error)

	// Sign signs the given payload and returns a signature
	Sign([]byte) ([]byte, error)
}

type SigningIdentityFetcher interface {
	endorsement.Dependency
	// SigningIdentityForRequest returns a signing identity for the given proposal
	SigningIdentityForRequest(*peer.SignedProposal) (SigningIdentity, error)
}