As usual, source included; feel free to modify, host, and/or print out to eat.
Note that unlike previous memes, this meme calculates the challenge/response authentication hash prior to transmission. In other words, your password can never be directly stored for usage. Within the minute after you submit, any data you provided will be rendered useless. If you don't believe, read the source; if you still don't trust the system, as usual, find a friend to host the script for you :)