/CBC.java/1.6/Thu Apr  2 01:42:01 1998//
/CFB.java/1.4/Thu Nov 20 19:39:32 1997//
/CFB_PGP.java/1.8/Tue Jul 13 20:49:49 1999//
/FeedbackMode.java/1.4/Thu Nov 20 19:39:32 1997//
/OFB.java/1.5/Fri Nov 21 05:45:11 1997//
/PCBC.java/1.5/Sun Dec  7 07:27:50 1997//
D
