[2234] in cryptography@c2.net mail archive
Re: DES, MMX, and FPGAs
daemon@ATHENA.MIT.EDU (Andreas Bogk)
Mon Mar 2 19:56:00 1998
Date: Tue, 3 Mar 1998 00:21:15 +0100
From: Andreas Bogk <andreas@telekom.artcom.de>
To: David Koontz <koontz@netapp.com>, cryptography@c2.net
In-Reply-To: <9803022253.AA10601@hoboken.netapp.com>; from David Koontz on Mon, Mar 02, 1998 at 02:53:55PM -0800
On Mon, Mar 02, 1998 at 02:53:55PM -0800, David Koontz wrote:
> /*
> * sbox.c
> *
> * c program to generate vhdl entity/architecture pairs
> * for DES S boxes. Source for the S box values is the
> * char S[8][64] array extracted from crypt.c (crypt(3)).
> */
I know that program. It produces a straightforward representation
of the S-boxes in VHDL. If you synthesize them, your S-boxes will
eat up about 150 LEs, compared to 28 that should be neccessary.
Andreas
--
Top ten resons why SGI sucks, No. 2:
"Assertion failed in file "../../c++runtime/throw.cxx", line 841
Abort (core dumped)" -- IRIX 6.2 run time library
