From: Brad Huntting <huntting@glarp.com>
Date: Fri, 18 Jun 93 09:30:04 PDT
To: Jason Zions <jazz@hal.com>
Subject: Re: fast des
In-Reply-To: <9306172113.AA10922@jazz.hal.com>
Message-ID: <199306181629.AA08794@misc.glarp.com>
MIME-Version: 1.0
Content-Type: text/plain



> Run your plaintext through compress first; remove the compress
> header; then encrypt. Compression will screw up character frequencies
> (and use all eight bits) enough to make automated detection of a
> successfully-broken encryption really darn hard. Especially if you
> keep changing compression technology each message.

Most encryption scheams use cypher block chaining or some other
mechanism where a change in one block will affect every block to
come after it, no?

Given this, would inserting a block of random data at the begining
of the datastream help?


brad