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

Question

有没有已知的方法在Google App Engine Python SDK上使用RSA私钥签署纯文本字符串？

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)

Answer 2

I haven't used it, but this appears to be a pure-Python RSA implementation, so it might work on App Engine:

http://stuvel.eu/rsa

Their Mercurial repo appears to be fairly active, too.