[2374] in cryptography@c2.net mail archive
RE: Yet another angle on Rivest's chaffing and export control
daemon@ATHENA.MIT.EDU (Dukhovni, Viktor)
Thu Mar 26 16:26:22 1998
From: "Dukhovni, Viktor" <Viktor-Dukhovni@deshaw.com>
To: "Dukhovni, Viktor" <Viktor-Dukhovni@deshaw.com>,
"'cryptography@c2.net'" <cryptography@c2.net>
Date: Wed, 25 Mar 1998 19:57:13 -0500
> -----Original Message-----
> From: Dukhovni, Viktor
> Sent: Wednesday, March 25, 1998 5:01 PM
> To: 'cryptography@c2.net'
> Subject: Yet another angle on Rivest's chaffing and export control
>
>
> The most suspect (from an export control view point) code is oddly
> enough the chaff generator, since its random number generator needs to be
> cryptographically strong in mixing the wheat with the chaff. There is no
> obvious innocuous application for the chaffing code, even though alone it
> does not constitute cryptography.
>
Oops, I forgot that the chaff and wheat are adequately hidden by
making the chaff be the complement of the wheat and sorting
lexicographically. So the chaff code is much simpler. So much for on the
spur of the moment messages. I was not going to post anything, but I was
encouraged to speak up by a friend...
> --
> Viktor.
