Signing a string with RSA private key on Google App Engine Python SDK

Question

Is there any known way to sign a plain text string with RSA private key on Google App Engine Python SDK?

Answer 1

The library tlslite included in the gdata python library is a good option.

http://code.google.com/p/gdata-python-client/

example:

from tlslite.utils import keyfactory
private_key = keyfactory.parsePrivateKey(rsa_key)
signed = private_key.hashAndSign(data)