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Diffstat (limited to 'tests/crypt/test__cryptography_rsa.py')
| -rw-r--r-- | tests/crypt/test__cryptography_rsa.py | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/tests/crypt/test__cryptography_rsa.py b/tests/crypt/test__cryptography_rsa.py new file mode 100644 index 0000000..dbf07c7 --- /dev/null +++ b/tests/crypt/test__cryptography_rsa.py @@ -0,0 +1,161 @@ +# Copyright 2016 Google LLC +# +# 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 json +import os + +from cryptography.hazmat.primitives.asymmetric import rsa +import pytest + +from google.auth import _helpers +from google.auth.crypt import _cryptography_rsa +from google.auth.crypt import base + + +DATA_DIR = os.path.join(os.path.dirname(__file__), "..", "data") + +# To generate privatekey.pem, privatekey.pub, and public_cert.pem: +# $ openssl req -new -newkey rsa:1024 -x509 -nodes -out public_cert.pem \ +# > -keyout privatekey.pem +# $ openssl rsa -in privatekey.pem -pubout -out privatekey.pub + +with open(os.path.join(DATA_DIR, "privatekey.pem"), "rb") as fh: + PRIVATE_KEY_BYTES = fh.read() + PKCS1_KEY_BYTES = PRIVATE_KEY_BYTES + +with open(os.path.join(DATA_DIR, "privatekey.pub"), "rb") as fh: + PUBLIC_KEY_BYTES = fh.read() + +with open(os.path.join(DATA_DIR, "public_cert.pem"), "rb") as fh: + PUBLIC_CERT_BYTES = fh.read() + +# To generate pem_from_pkcs12.pem and privatekey.p12: +# $ openssl pkcs12 -export -out privatekey.p12 -inkey privatekey.pem \ +# > -in public_cert.pem +# $ openssl pkcs12 -in privatekey.p12 -nocerts -nodes \ +# > -out pem_from_pkcs12.pem + +with open(os.path.join(DATA_DIR, "pem_from_pkcs12.pem"), "rb") as fh: + PKCS8_KEY_BYTES = fh.read() + +with open(os.path.join(DATA_DIR, "privatekey.p12"), "rb") as fh: + PKCS12_KEY_BYTES = fh.read() + +# The service account JSON file can be generated from the Google Cloud Console. +SERVICE_ACCOUNT_JSON_FILE = os.path.join(DATA_DIR, "service_account.json") + +with open(SERVICE_ACCOUNT_JSON_FILE, "r") as fh: + SERVICE_ACCOUNT_INFO = json.load(fh) + + +class TestRSAVerifier(object): + def test_verify_success(self): + to_sign = b"foo" + signer = _cryptography_rsa.RSASigner.from_string(PRIVATE_KEY_BYTES) + actual_signature = signer.sign(to_sign) + + verifier = _cryptography_rsa.RSAVerifier.from_string(PUBLIC_KEY_BYTES) + assert verifier.verify(to_sign, actual_signature) + + def test_verify_unicode_success(self): + to_sign = u"foo" + signer = _cryptography_rsa.RSASigner.from_string(PRIVATE_KEY_BYTES) + actual_signature = signer.sign(to_sign) + + verifier = _cryptography_rsa.RSAVerifier.from_string(PUBLIC_KEY_BYTES) + assert verifier.verify(to_sign, actual_signature) + + def test_verify_failure(self): + verifier = _cryptography_rsa.RSAVerifier.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_from_string_pub_key(self): + verifier = _cryptography_rsa.RSAVerifier.from_string(PUBLIC_KEY_BYTES) + assert isinstance(verifier, _cryptography_rsa.RSAVerifier) + assert isinstance(verifier._pubkey, rsa.RSAPublicKey) + + def test_from_string_pub_key_unicode(self): + public_key = _helpers.from_bytes(PUBLIC_KEY_BYTES) + verifier = _cryptography_rsa.RSAVerifier.from_string(public_key) + assert isinstance(verifier, _cryptography_rsa.RSAVerifier) + assert isinstance(verifier._pubkey, rsa.RSAPublicKey) + + def test_from_string_pub_cert(self): + verifier = _cryptography_rsa.RSAVerifier.from_string(PUBLIC_CERT_BYTES) + assert isinstance(verifier, _cryptography_rsa.RSAVerifier) + assert isinstance(verifier._pubkey, rsa.RSAPublicKey) + + def test_from_string_pub_cert_unicode(self): + public_cert = _helpers.from_bytes(PUBLIC_CERT_BYTES) + verifier = _cryptography_rsa.RSAVerifier.from_string(public_cert) + assert isinstance(verifier, _cryptography_rsa.RSAVerifier) + assert isinstance(verifier._pubkey, rsa.RSAPublicKey) + + +class TestRSASigner(object): + def test_from_string_pkcs1(self): + signer = _cryptography_rsa.RSASigner.from_string(PKCS1_KEY_BYTES) + assert isinstance(signer, _cryptography_rsa.RSASigner) + assert isinstance(signer._key, rsa.RSAPrivateKey) + + def test_from_string_pkcs1_unicode(self): + key_bytes = _helpers.from_bytes(PKCS1_KEY_BYTES) + signer = _cryptography_rsa.RSASigner.from_string(key_bytes) + assert isinstance(signer, _cryptography_rsa.RSASigner) + assert isinstance(signer._key, rsa.RSAPrivateKey) + + def test_from_string_pkcs8(self): + signer = _cryptography_rsa.RSASigner.from_string(PKCS8_KEY_BYTES) + assert isinstance(signer, _cryptography_rsa.RSASigner) + assert isinstance(signer._key, rsa.RSAPrivateKey) + + def test_from_string_pkcs8_unicode(self): + key_bytes = _helpers.from_bytes(PKCS8_KEY_BYTES) + signer = _cryptography_rsa.RSASigner.from_string(key_bytes) + assert isinstance(signer, _cryptography_rsa.RSASigner) + assert isinstance(signer._key, rsa.RSAPrivateKey) + + def test_from_string_pkcs12(self): + with pytest.raises(ValueError): + _cryptography_rsa.RSASigner.from_string(PKCS12_KEY_BYTES) + + def test_from_string_bogus_key(self): + key_bytes = "bogus-key" + with pytest.raises(ValueError): + _cryptography_rsa.RSASigner.from_string(key_bytes) + + def test_from_service_account_info(self): + signer = _cryptography_rsa.RSASigner.from_service_account_info( + SERVICE_ACCOUNT_INFO + ) + + assert signer.key_id == SERVICE_ACCOUNT_INFO[base._JSON_FILE_PRIVATE_KEY_ID] + assert isinstance(signer._key, rsa.RSAPrivateKey) + + def test_from_service_account_info_missing_key(self): + with pytest.raises(ValueError) as excinfo: + _cryptography_rsa.RSASigner.from_service_account_info({}) + + assert excinfo.match(base._JSON_FILE_PRIVATE_KEY) + + def test_from_service_account_file(self): + signer = _cryptography_rsa.RSASigner.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, rsa.RSAPrivateKey) |