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- Newsgroups: comp.sys.mac.misc
- Path: sparky!uunet!decwrl!access.usask.ca!ccu.umanitoba.ca!vnelson
- From: vnelson@ccu.umanitoba.ca (Gerald Vernon Nelson)
- Subject: Re: CRC vs. Checksum
- Message-ID: <1992Jul28.233816.4788@ccu.umanitoba.ca>
- Organization: University of Manitoba, Winnipeg, Canada
- References: <9414.2A6FC102@psycho.fidonet.org> <1992Jul28.055536.18052@nntp.hut.fi>
- Date: Tue, 28 Jul 1992 23:38:16 GMT
- Lines: 15
-
- >In previous article Jim Kauffman writes:
- >>Does anyone know the relative merits of checksum vs. CRC for detecting
- >>error(s) in a block of data? I would like to calculate the probability of
-
- CRC is much better for detecting errors than checksum.
-
- The probability of an undetected error occuring when using a 17 bit
- polynomial is around 1 in 10^14.
-
- If transmitting at 9600 bps around the clock, it would take about 3000
- years for a single bit of undetected error to occur.
-
- Reference : Data Communications : A User's Guide - Kenneth Sherman.
-
- Vern Nelson
-