[Gas] help on AuthManager DES fix

[Brandon Bowersox]

I committed the AuthManager.pm fix to switch from Des.pm to Crypt::DES.

However, I broke it and now I don't understand how.  Any thoughts?
The patch I'd emailed was a fix for version 1.16, but it turned out 
in CVS AuthManager.pm was up to version 1.19.  So I applied the fix 
and committed it as AuthManager.pm 1.20.  But 1.20 fails as below.

It appears that we make_cookie OK by calling nwis_crypt, then we give 
the browser the cookie, the browser gives the same cookie back, but 
when we crack_cookie the plaintext we get back has junk at the end!

Here are 4 debugs from the 4 important method calls.
nwis_crypt text [brandon:10.2.2.211:1085867181] returns [J-LEsHqnSfjdCqfQiemmeAiW.hyD08bCMH.0oNt5hvJX.,]
make_cookie login [brandon] host [10.2.2.211] time [1085867181] cookie [J-LEsHqnSfjdCqfQiemmeAiW.hyD08bCMH.0oNt5hvJX.,]
nwis_decrypt return [J-LEsHqnSfjdCqfQiemmeAiW.hyD08bCMH.0oNt5hvJX.,] ... ...gives [brandon:10.2.2.211:1085867181   -[!!".!!]
crack_cookie login [brandon] host [10.2.2.211] time [1085867181   -[!!".!!] cookie [J-LEsHqnSfjdCqfQiemmeAiW.hyD08bCMH.0oNt5hvJX.,]

Any ideas?  I want to fix or revert soon so CVS doesn't have a broken 
version.
Brandon