From owner-freebsd-hackers Thu Jan 23 05:20:45 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.5/8.8.5) id FAA18642 for hackers-outgoing; Thu, 23 Jan 1997 05:20:45 -0800 (PST) Received: from terra.Sarnoff.COM (terra.sarnoff.com [130.33.11.203]) by freefall.freebsd.org (8.8.5/8.8.5) with SMTP id FAA18637 for ; Thu, 23 Jan 1997 05:20:43 -0800 (PST) Received: (from rminnich@localhost) by terra.Sarnoff.COM (8.6.12/8.6.12) id IAA28217; Thu, 23 Jan 1997 08:19:37 -0500 Date: Thu, 23 Jan 1997 08:19:36 -0500 (EST) From: "Ron G. Minnich" X-Sender: rminnich@terra To: Michael Smith cc: hackers@freebsd.org Subject: Re: CRC-16 algorithms? In-Reply-To: <199701231259.XAA21523@genesis.atrad.adelaide.edu.au> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-hackers@freebsd.org X-Loop: FreeBSD.org Precedence: bulk If anyone out there can get me the coefficients, I can deliver a program that will do the crc-16. But working out the polynomial minus the coefficients, well, I'll go with Barbie on this one: "Math is hard, let's go shopping" Not impossible: assuming this crc is accumulated 16 bits at a time, there are only 2^16 possible polynomials, after all ... at least it's not some crc-32! michael let me know if you don't get anywhere. ron Ron Minnich |"Failure is not an option" -- Gene Kranz rminnich@sarnoff.com | -- except, of course, on Microsoft products (609)-734-3120 | ftp://ftp.sarnoff.com/pub/mnfs/www/docs/cluster.html