On Thu, 2002-06-27 at 04:23, Paul Johnson wrote: > Just curious, but does enabling compression make it easier, harder or > about the same difficulty to crack data from an SSH connection?
Classical crypto analysis uses the fact that the cleartext message has predictable patterns (as natural language always will have). So compressing before encrypting will improve security somewhat, as ideal compressed data is indistinguishable from random data. Also, iirc shorter messages are harder to break, so again a plus for compression. How and if this interrelates to (pseudo) brute-force key-guessing methods I cannot say, so be careful whith what I've said above. cheers -- vbi -- secure email with gpg http://fortytwo.ch/gpg
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