def test_validate_encryption(self):
# Arrange
queue = self._create_queue()
kek = KeyWrapper('key1')
queue.key_encryption_key = kek
queue.enqueue_message(u'message')
# Act
queue.key_encryption_key = None # Message will not be decrypted
li = queue.peek_messages()
message = li[0].content
message = loads(message)
encryption_data = message['EncryptionData']
wrapped_content_key = encryption_data['WrappedContentKey']
wrapped_content_key = _WrappedContentKey(
wrapped_content_key['Algorithm'],
b64decode(
wrapped_content_key['EncryptedKey'].encode(encoding='utf-8')),
wrapped_content_key['KeyId'])
encryption_agent = encryption_data['EncryptionAgent']
encryption_agent = _EncryptionAgent(
encryption_agent['EncryptionAlgorithm'],
encryption_agent['Protocol'])
encryption_data = _EncryptionData(
b64decode(encryption_data['ContentEncryptionIV'].encode(
encoding='utf-8')), encryption_agent, wrapped_content_key,
{'EncryptionLibrary': VERSION})
message = message['EncryptedMessageContents']
content_encryption_key = kek.unwrap_key(
encryption_data.wrapped_content_key.encrypted_key,
encryption_data.wrapped_content_key.algorithm)
# Create decryption cipher
backend = backends.default_backend()
algorithm = AES(content_encryption_key)
mode = CBC(encryption_data.content_encryption_IV)
cipher = Cipher(algorithm, mode, backend)
# decode and decrypt data
decrypted_data = _decode_base64_to_bytes(message)
decryptor = cipher.decryptor()
decrypted_data = (decryptor.update(decrypted_data) +
decryptor.finalize())
# unpad data
unpadder = PKCS7(128).unpadder()
decrypted_data = (unpadder.update(decrypted_data) +
unpadder.finalize())
decrypted_data = decrypted_data.decode(encoding='utf-8')
# Assert
self.assertEqual(decrypted_data, u'message')
async def test_validate_encryption(self, resource_group, location,
storage_account, storage_account_key):
qsc = QueueServiceClient(self.account_url(storage_account.name,
"queue"),
storage_account_key,
transport=AiohttpTestTransport())
# Arrange
queue = await self._create_queue(qsc)
kek = KeyWrapper('key1')
queue.key_encryption_key = kek
await queue.send_message(u'message')
# Act
queue.key_encryption_key = None # Message will not be decrypted
li = await queue.peek_messages()
message = li[0].content
message = loads(message)
encryption_data = message['EncryptionData']
wrapped_content_key = encryption_data['WrappedContentKey']
wrapped_content_key = _WrappedContentKey(
wrapped_content_key['Algorithm'],
b64decode(
wrapped_content_key['EncryptedKey'].encode(encoding='utf-8')),
wrapped_content_key['KeyId'])
encryption_agent = encryption_data['EncryptionAgent']
encryption_agent = _EncryptionAgent(
encryption_agent['EncryptionAlgorithm'],
encryption_agent['Protocol'])
encryption_data = _EncryptionData(
b64decode(encryption_data['ContentEncryptionIV'].encode(
encoding='utf-8')), encryption_agent, wrapped_content_key,
{'EncryptionLibrary': VERSION})
message = message['EncryptedMessageContents']
content_encryption_key = kek.unwrap_key(
encryption_data.wrapped_content_key.encrypted_key,
encryption_data.wrapped_content_key.algorithm)
# Create decryption cipher
backend = backends.default_backend()
algorithm = AES(content_encryption_key)
mode = CBC(encryption_data.content_encryption_IV)
cipher = Cipher(algorithm, mode, backend)
# decode and decrypt data
decrypted_data = _decode_base64_to_bytes(message)
decryptor = cipher.decryptor()
decrypted_data = (decryptor.update(decrypted_data) +
decryptor.finalize())
# unpad data
unpadder = PKCS7(128).unpadder()
decrypted_data = (unpadder.update(decrypted_data) +
unpadder.finalize())
decrypted_data = decrypted_data.decode(encoding='utf-8')
# Assert
self.assertEqual(decrypted_data, u'message')
