[pycrypto] Rewrite bcrypt in PyCrypto so we can use it on Google App Engine

[est]

Hi guys, In the light of recent Gawker breakout, lots of communities
are discussing what's the best practice for storing passwords. Like
this on on HN suggested

http://news.ycombinator.com/item?id=1998819

> Use bcrypt. Use bcrypt. Use bcrypt.

But the py-bcrypt library is written with C, and customized gensalt()
function. It it not available on Google App Engine. But Google App
Engine actually supports PyCrypto.

I am not an security expert, anyone can help rewrite py-bcrypt using PyCrypto?

Thanks and regards,

est