[jdev] ruby xmppd, and Psi

[Eric Will]

Yes, upon further investigation it appears cnonce should be an MD5
hexdigest of some random entropy generated by the client (gibberish in
most cases). It seems Psi is doing a base64-encode instead of an MD5
hexdigest.

However, I'm not totally sure, because:

1. I can't fix this by decoding the base64 cnonce and using that to
compute my response, and;
2. I can't fix this by decoding the base64 cnonce and then md5-hexing
it to compute my response, and;
3. I can't fix this by md5-ing the base64-encoded cnonce and using
that to compute my response.

Silly DIGEST-MD5.

--
Eric Will