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The following archive was created by hippie-mail 7.98617-22 on Fri Aug 21 1998 - 17:16:56 ADT
bram (bram@gawth.com)
Thu, 9 Apr 1998 21:06:49 -0700 (PDT)
I'm implementing CBC mode now, and would like to use ciphertext stealing,
since it doesn't require any extra space for the message and doesn't have
any failure modes when decrypting (a property whose value is easily
underestimated.)
There is, however, a problem - what to do with messages
which are shorter than the block size? I can't figure out a way of
encrypting them. Does anyone know if it's possible to encrypt messages
that small and still have an output the same size as the input? If not,
does anyone have any suggestions about how to handle it?
-Bram
The following archive was created by hippie-mail 7.98617-22 on Fri Aug 21 1998 - 17:16:56 ADT