Article View: comp.networks
Article #1Help: CRC calculation for arbitrary generator polynomial
From: Renegade
Date: Fri, 23 Feb 1996 16:03
Date: Fri, 23 Feb 1996 16:03
25 lines
1626 bytes
1626 bytes
Greetings, I am trying to do some simulations on CRC codes. I have found several sources that have code for generating CRC's. The only problem is that these algorithms are based on 16 or 32 bit CRC's and table lookups. I would like to be able to use a 4 or 8 bit CRC. I have not been able to successfully figure out how to convert these algorithms to an arbitrary length CRC. The tables (XOR's with the generator and all possible one byte data characters) are used for efficiency. I'm not so concerned about speed. I just want to be able to change the CRC generator polynomial. I can run my simualtions overnight so the time wasted using bit shifts to compute the CRC the way hardware does is ok. If you can help please e-mail me at RENEGADE@DNACO.NET If anyone using Linux is interested in scripts to connect to the Internet via PPP also let me know. I have developed perl scripts to make a PPP connection to the Internet. These scripts will re-dial if the line is busy, and can handle dynamic IP addressing. Thanks in advance, Dave Hoeferlin Renegade@dnaco.net
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Path: arc1-ca.pugleaf.net!dnaco.net!root From: renegade@dnaco.net (Renegade) Newsgroups: comp.networks,comp.os.linux.networking,comp.os.ms-windows.networking,comp.os.ms-windows.programmer.networks,comp.lang.c,comp.lang.c++ Subject: Help: CRC calculation for arbitrary generator polynomial Date: Fri, 23 Feb 1996 16:03:00 GMT Organization: The Dayton Network Access Company (DNACo) Message-ID: <4gke26$57k@sisko.dnaco.net> Reply-To: renegade@dnaco.net NNTP-Posting-Host: @odo.dnaco.net X-Newsreader: Forte Free Agent 1.0.82