RE: [Tsvwg] problem with crc32

"Asish Thomas Punnoose" <asish.punnoose@wipro.com> Fri, 24 August 2001 07:07 UTC

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From: Asish Thomas Punnoose <asish.punnoose@wipro.com>
To: namrata mahindrakar <namrata_sm@hotmail.com>
Cc: Tsvwg SCTP <tsvwg@ietf.org>
Subject: RE: [Tsvwg] problem with crc32
Date: Fri, 24 Aug 2001 12:18:52 +0530
Message-ID: <OMEIJJMMOPBHIBPKIFGICEILCEAA.asish.punnoose@wipro.com>
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Hello Namrata,

There is currently a draft in the tsvwg draft-ietf-tsvwg-rfc2960-bis-00.txt
which has changes incorporated from past bakeoffs and mailing list
discussions.

The section 6.8 of the draft has Fletcher-16 Checksum Calculation instead
of the original alder32 Checksum in RFC 2960.

Now the qus is, which algorithm to use for the checksum calculations. Would
anyone know which algo is been used in the various implementation in the
bakeoff.

regards
Asish







-----Original Message-----
From: tsvwg-admin@ietf.org [mailto:tsvwg-admin@ietf.org]On Behalf Of
namrata mahindrakar
Sent: Friday, August 24, 2001 10:58 AM
To: tsvwg@ietf.org
Subject: [Tsvwg] problem with crc32


hi,
I am using the alder32 algorithum to calculate the CRC the  out that
should be obtained for char
pkt_data[44]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
                   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
                   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
                   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
                   0x00,0x00,0x00,0x28}

how do u use this algorithum.(alder32)

How is it better than crc32 lookuptable.



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