Unsupportedalgorithm: This Backend Does Not Support This Key Serialization. - Python Cryptography Load_pem_private_key

I am trying to generate signed urls for AWS Cloudfront based on the example here. On the line private_key = serialization.load_pem_private_key( key_file.read(), pa

Solution 1:

Unfortunately the python cryptography library cannot be used with google appengine(GAE) as this library needs to have C extensions and you cannot install C extensions in GAE. You can only use pure python packages.