RE: [Tsvwg] I-D ACTION:draft-ietf-tsvwg-sctpcsum-01.txt

Ref Pg 8 which has an example of the crc validation :

    /* Example of crc validation */ 
    /* Test of 32 zeros should yield 0x756EC955 placed in network order
*/ 
    /* 13 zeros followed by byte values of 1 - 0x1f should yield 
    /* 0x5b988D47 */

Do you a mean an arbitrary buffer of 32 bytes - all zero ? Or an sctp
(with a data chunk) packet with a payload of 32 bytes set to zero.
I dont see how an all zero buffer can have a non-zero checksum.
I am not getting either of the crc's  using the example code.

Shivani

!    -----Original Message-----
!    From: ext Internet-Drafts@ietf.org 
!    [mailto:Internet-Drafts@ietf.org]
!    Sent: 08 January, 2002 6:02 AM
!    Cc: tsvwg@ietf.org
!    Subject: [Tsvwg] I-D ACTION:draft-ietf-tsvwg-sctpcsum-01.txt
!    
!    
!    A New Internet-Draft is available from the on-line 
!    Internet-Drafts directories.
!    This draft is a work item of the Transport Area Working 
!    Group Working Group of the IETF.
!    
!    	Title		: SCTP Checksum Change
!    	Author(s)	: R. Stewart, C. Sharp, J. Stone, D. Otis
!    	Filename	: draft-ietf-tsvwg-sctpcsum-01.txt
!    	Pages		: 10
!    	Date		: 07-Jan-02
!    	
!    SCTP [RFC2960] currently uses an Adler-32 checksum.  For 
!    small packets, 
!    this provides weak protection against the detection of 
!    errors.  This 
!    document changes that checksum and updates SCTP to use a 
!    32 bit CRC 
!    checksum.
!    
!    A URL for this Internet-Draft is:
!    http://www.ietf.org/internet-drafts/draft-ietf-tsvwg-sctpcs
um-01.txt

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