Currently the message printed out by klist when it encounters an unknown encryption type is as follows:
0 Thu Mar 22 14:30:01 2007 host/ xxxxx@xxxxx.COM (etype 23)
This message should be changed to the following to be more specific about the information being relayed to the user:
0 Thu Mar 22 14:30:01 2007 host/ xxxxx@xxxxx.COM (unknown enctype 23)
The same applies for how ktutil displays this information about unknown encryption types.