Pki Verification Across Java And Python

I am trying to implement a PKI verification scheme, where a message string is signed with a private key on server, the signature is stored on the client along with the message stri

Solution 1:

These are different operations. In Python, you need to use hashAndSign. The default happens to be SHA1 hash.

Solution 2:

Keyczar should work fine on App Engine, and is available in both Java and Python flavours.