This is a total nitpick, but I still think it should be fixed, as it is a bit misleading.
The code comments in filters.cpp and the exception text at line 601 of filters.cpp and the output of the DES validation suite indicate the PKCS padding used is PKCS#7 padding - it isn't, it is PKCS#5 padding. Regards, David C. Partridge Security and MQ Products Manager Primeur Group Tel: +44 (0)1926 511058 Mobile: +44 (0)7713 880197