paramiko/paramiko — pull request #295 by alex (2014-03-29 23:56:29+00:00)
Title: Switched hash functions from PyCrypto to hashlib.

There's a few advantages to this:

1) It's probably fast, OpenSSL, which typically backs hashlib, receives far
more attention for optimizaitons than PyCrypto.
2) It's the first step to supporting PyPy, where PyCrypto doesn't run.