test_signature_utils.py 文件源码

def test_verify_signature_ECC(self, mock_get_pub_key):
        data = b'224626ae19824466f2a7f39ab7b80f7f'
        # test every ECC curve
        for curve in signature_utils.ECC_CURVES:
            key_type_name = 'ECC_' + curve.name.upper()
            try:
                signature_utils.SignatureKeyType.lookup(key_type_name)
            except exception.SignatureVerificationError:
                import warnings
                warnings.warn("ECC curve '%s' not supported" % curve.name)
                continue

            # Create a private key to use
            private_key = ec.generate_private_key(curve,
                                                  default_backend())
            mock_get_pub_key.return_value = private_key.public_key()
            for hash_name, hash_alg in signature_utils.HASH_METHODS.items():
                signer = private_key.signer(
                    ec.ECDSA(hash_alg)
                )
                signer.update(data)
                signature = base64.b64encode(signer.finalize())
                img_sig_cert_uuid = 'fea14bc2-d75f-4ba5-bccc-b5c924ad0693'
                verifier = signature_utils.get_verifier(None,
                                                        img_sig_cert_uuid,
                                                        hash_name, signature,
                                                        key_type_name)
                verifier.update(data)
                verifier.verify()