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From: ccarthur@wombat.decnet.uq.oz (Arthur Hartwig, PCC)
Newsgroups: comp.protocols.iso
Subject: RE: CRC-32/AUTODIN II reference?
Message-ID: <2170@wombat.decnet.uq.oz>
Date: 27 Jun 89 23:59:58 GMT
Lines: 17

John Kohl <jtkohl@ATHENA.MIT.EDU> or <jtkohl@Kolvir.Brookline.MA.US> asks:

> Is there an ISO or ANSI standard specifying the CRC-32/AUTODIN-II
> checksum?


The CRC-32 standard appears in ISO 3309, High Level Data Link Control (HDLC) 
procedures - Part 1: Specification for frame structure.

The polynomial used is 

1+x+x^2+x^4+x^5+x^7+x^8+x^10+x^11+x^12+x^16+x^22+x^23+x^26+x^32

The same polynomial is also used in the IEEE 802 series of standards, (ISO 
8802) so further details can probably be found there also.

	Arthur Hartwig