Schneier Claims on Multiple Encryption
Roger Bryner
bryner at atlas.chem.utah.edu
Thu Jul 7 10:37:39 PDT 1994
On Thu, 7 Jul 1994, Kent Borg wrote:
> Kent's Hypothosis: Superencrypting different algorithms with unrelated
> keys can never weaken non-trivial algorithms.
Well, it could, just posibly, once in the enrtopy of your adverage
algorithim, but then, as you pointed out, you could just use DES as a
magic IDEA decoder:-)
You can prove that there is no such interaction if you use two different
algorithims on two halfs of a one time pad message, even with the SAME key.
Roger.
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