github_repo_scraped
/
repos
/googleapis-google-auth-library-python-c6d9903
/tests
/crypt
/test_es256.py
# Copyright 2016 Google Inc. | |
# | |
# Licensed under the Apache License, Version 2.0 (the "License"); | |
# you may not use this file except in compliance with the License. | |
# You may obtain a copy of the License at | |
# | |
# http://www.apache.org/licenses/LICENSE-2.0 | |
# | |
# Unless required by applicable law or agreed to in writing, software | |
# distributed under the License is distributed on an "AS IS" BASIS, | |
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
# See the License for the specific language governing permissions and | |
# limitations under the License. | |
import base64 | |
import json | |
import os | |
import pickle | |
from cryptography.hazmat.primitives.asymmetric import ec | |
import pytest # type: ignore | |
from google.auth import _helpers | |
from google.auth.crypt import base | |
from google.auth.crypt import es256 | |
DATA_DIR = os.path.join(os.path.dirname(__file__), "..", "data") | |
# To generate es256_privatekey.pem, es256_privatekey.pub, and | |
# es256_public_cert.pem: | |
# $ openssl ecparam -genkey -name prime256v1 -noout -out es256_privatekey.pem | |
# $ openssl ec -in es256-private-key.pem -pubout -out es256-publickey.pem | |
# $ openssl req -new -x509 -key es256_privatekey.pem -out \ | |
# > es256_public_cert.pem | |
with open(os.path.join(DATA_DIR, "es256_privatekey.pem"), "rb") as fh: | |
PRIVATE_KEY_BYTES = fh.read() | |
PKCS1_KEY_BYTES = PRIVATE_KEY_BYTES | |
with open(os.path.join(DATA_DIR, "es256_publickey.pem"), "rb") as fh: | |
PUBLIC_KEY_BYTES = fh.read() | |
with open(os.path.join(DATA_DIR, "es256_public_cert.pem"), "rb") as fh: | |
PUBLIC_CERT_BYTES = fh.read() | |
SERVICE_ACCOUNT_JSON_FILE = os.path.join(DATA_DIR, "es256_service_account.json") | |
with open(SERVICE_ACCOUNT_JSON_FILE, "rb") as fh: | |
SERVICE_ACCOUNT_INFO = json.load(fh) | |
class TestES256Verifier(object): | |
def test_verify_success(self): | |
to_sign = b"foo" | |
signer = es256.ES256Signer.from_string(PRIVATE_KEY_BYTES) | |
actual_signature = signer.sign(to_sign) | |
verifier = es256.ES256Verifier.from_string(PUBLIC_KEY_BYTES) | |
assert verifier.verify(to_sign, actual_signature) | |
def test_verify_unicode_success(self): | |
to_sign = u"foo" | |
signer = es256.ES256Signer.from_string(PRIVATE_KEY_BYTES) | |
actual_signature = signer.sign(to_sign) | |
verifier = es256.ES256Verifier.from_string(PUBLIC_KEY_BYTES) | |
assert verifier.verify(to_sign, actual_signature) | |
def test_verify_failure(self): | |
verifier = es256.ES256Verifier.from_string(PUBLIC_KEY_BYTES) | |
bad_signature1 = b"" | |
assert not verifier.verify(b"foo", bad_signature1) | |
bad_signature2 = b"a" | |
assert not verifier.verify(b"foo", bad_signature2) | |
def test_verify_failure_with_wrong_raw_signature(self): | |
to_sign = b"foo" | |
# This signature has a wrong "r" value in the "(r,s)" raw signature. | |
wrong_signature = base64.urlsafe_b64decode( | |
b"m7oaRxUDeYqjZ8qiMwo0PZLTMZWKJLFQREpqce1StMIa_yXQQ-C5WgeIRHW7OqlYSDL0XbUrj_uAw9i-QhfOJQ==" | |
) | |
verifier = es256.ES256Verifier.from_string(PUBLIC_KEY_BYTES) | |
assert not verifier.verify(to_sign, wrong_signature) | |
def test_from_string_pub_key(self): | |
verifier = es256.ES256Verifier.from_string(PUBLIC_KEY_BYTES) | |
assert isinstance(verifier, es256.ES256Verifier) | |
assert isinstance(verifier._pubkey, ec.EllipticCurvePublicKey) | |
def test_from_string_pub_key_unicode(self): | |
public_key = _helpers.from_bytes(PUBLIC_KEY_BYTES) | |
verifier = es256.ES256Verifier.from_string(public_key) | |
assert isinstance(verifier, es256.ES256Verifier) | |
assert isinstance(verifier._pubkey, ec.EllipticCurvePublicKey) | |
def test_from_string_pub_cert(self): | |
verifier = es256.ES256Verifier.from_string(PUBLIC_CERT_BYTES) | |
assert isinstance(verifier, es256.ES256Verifier) | |
assert isinstance(verifier._pubkey, ec.EllipticCurvePublicKey) | |
def test_from_string_pub_cert_unicode(self): | |
public_cert = _helpers.from_bytes(PUBLIC_CERT_BYTES) | |
verifier = es256.ES256Verifier.from_string(public_cert) | |
assert isinstance(verifier, es256.ES256Verifier) | |
assert isinstance(verifier._pubkey, ec.EllipticCurvePublicKey) | |
class TestES256Signer(object): | |
def test_from_string_pkcs1(self): | |
signer = es256.ES256Signer.from_string(PKCS1_KEY_BYTES) | |
assert isinstance(signer, es256.ES256Signer) | |
assert isinstance(signer._key, ec.EllipticCurvePrivateKey) | |
def test_from_string_pkcs1_unicode(self): | |
key_bytes = _helpers.from_bytes(PKCS1_KEY_BYTES) | |
signer = es256.ES256Signer.from_string(key_bytes) | |
assert isinstance(signer, es256.ES256Signer) | |
assert isinstance(signer._key, ec.EllipticCurvePrivateKey) | |
def test_from_string_bogus_key(self): | |
key_bytes = "bogus-key" | |
with pytest.raises(ValueError): | |
es256.ES256Signer.from_string(key_bytes) | |
def test_from_service_account_info(self): | |
signer = es256.ES256Signer.from_service_account_info(SERVICE_ACCOUNT_INFO) | |
assert signer.key_id == SERVICE_ACCOUNT_INFO[base._JSON_FILE_PRIVATE_KEY_ID] | |
assert isinstance(signer._key, ec.EllipticCurvePrivateKey) | |
def test_from_service_account_info_missing_key(self): | |
with pytest.raises(ValueError) as excinfo: | |
es256.ES256Signer.from_service_account_info({}) | |
assert excinfo.match(base._JSON_FILE_PRIVATE_KEY) | |
def test_from_service_account_file(self): | |
signer = es256.ES256Signer.from_service_account_file(SERVICE_ACCOUNT_JSON_FILE) | |
assert signer.key_id == SERVICE_ACCOUNT_INFO[base._JSON_FILE_PRIVATE_KEY_ID] | |
assert isinstance(signer._key, ec.EllipticCurvePrivateKey) | |
def test_pickle(self): | |
signer = es256.ES256Signer.from_service_account_file(SERVICE_ACCOUNT_JSON_FILE) | |
assert signer.key_id == SERVICE_ACCOUNT_INFO[base._JSON_FILE_PRIVATE_KEY_ID] | |
assert isinstance(signer._key, ec.EllipticCurvePrivateKey) | |
pickled_signer = pickle.dumps(signer) | |
signer = pickle.loads(pickled_signer) | |
assert signer.key_id == SERVICE_ACCOUNT_INFO[base._JSON_FILE_PRIVATE_KEY_ID] | |
assert isinstance(signer._key, ec.EllipticCurvePrivateKey) | |