Hiya Andri,
This is most likely due to the version of openssl you have on your
system. Hashlib (which is a part of python, and not dependent upon
pycrypto) makes use of openssl, so if the version of openssl you're
using doesn't support some of the standard functions that python uses,
you'll end up with the kind of error messages you're seeing. It's
rather unusual to have an openssl that doesn't support those hashes, but
that's my best guess as to what's going wrong for you...
Mike 5:)