Tribler/tribler — pull request #1080 by whirm (2014-12-25 10:28:21+00:00)
Title: Raise if len(key) != 16 to avoid segfaulting m2crypto.

I know it will break tests until the underlying issue (getting bad keys there from the anontunnel stuff) gets fixed. But we really need a new release with the optional tunneling and this makes Tribler crash way too much.