crypto.py 文件源码

def verify(self, message, signature, hash_algorithm=None):
        if hash_algorithm is None:
            hash_algorithm = hashes.SHA256()

        padding_algorithm = padding.PKCS1v15()
        try:
            verifyer = self._value.verifier(signature, padding_algorithm,
                                            hash_algorithm)
            verifyer.update(message)
            verifyer.verify()
            return True
        except exceptions.InvalidSignature as e:
            pass

        raise VerificationError(e)