from libp2p.security.exceptions import HandshakeFailure class NoiseFailure(HandshakeFailure): pass class HandshakeHasNotFinished(NoiseFailure): pass class InvalidSignature(NoiseFailure): pass class NoiseStateError(NoiseFailure): """Raised when anything goes wrong in the noise state in `noiseprotocol` package.""" class PeerIDMismatchesPubkey(NoiseFailure): pass