1 files changed, 58 insertions, 0 deletions
diff --git a/tests/crypt/test_crypt.py b/tests/crypt/test_crypt.py
new file mode 100644
index 0000000..e80502e
--- /dev/null
+++ b/tests/crypt/test_crypt.py
@@ -0,0 +1,58 @@
+# 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 os
+
+from google.auth import crypt
+
+
+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()
+
+with open(os.path.join(DATA_DIR, "public_cert.pem"), "rb") as fh:
+    PUBLIC_CERT_BYTES = fh.read()
+
+# To generate other_cert.pem:
+#   $ openssl req -new -newkey rsa:1024 -x509 -nodes -out other_cert.pem
+
+with open(os.path.join(DATA_DIR, "other_cert.pem"), "rb") as fh:
+    OTHER_CERT_BYTES = fh.read()
+
+
+def test_verify_signature():
+    to_sign = b"foo"
+    signer = crypt.RSASigner.from_string(PRIVATE_KEY_BYTES)
+    signature = signer.sign(to_sign)
+
+    assert crypt.verify_signature(to_sign, signature, PUBLIC_CERT_BYTES)
+
+    # List of certs
+    assert crypt.verify_signature(
+        to_sign, signature, [OTHER_CERT_BYTES, PUBLIC_CERT_BYTES]
+    )
+
+
+def test_verify_signature_failure():
+    to_sign = b"foo"
+    signer = crypt.RSASigner.from_string(PRIVATE_KEY_BYTES)
+    signature = signer.sign(to_sign)
+
+    assert not crypt.verify_signature(to_sign, signature, OTHER_CERT_BYTES)