[Tsvwg] Protocol Action: SCTP Checksum Change to Proposed Standard
The IESG <iesg-secretary@ietf.org> Tue, 21 May 2002 16:18 UTC
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From: The IESG <iesg-secretary@ietf.org>
Date: Mon, 20 May 2002 13:09:37 -0400
Subject: [Tsvwg] Protocol Action: SCTP Checksum Change to Proposed Standard
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The IESG has approved the Internet-Draft 'SCTP Checksum Change' <draft-ietf-tsvwg-sctpcsum-07.txt> as a Proposed Standard, updating RFC 2960, Stream Control Transmission Protocol, also a Proposed Standard. This document is the product of the Transport Area Working Group Working Group. The IESG contact persons are Allison Mankin and Scott Bradner. Technical Summary Stream Control Transmission Protocol (SCTP) currently uses an Adler-32 checksum. For small packets Adler-32 provides weak detection of errors. This document changes that checksum and updates SCTP to use a 32-bit CRC checksum. Working Group Summary There was a great deal of discussion on some of the details of this document and the document was changed in response. There was good consensus within the working group and during IETF Last-Call to support publication of this document. Protocol Quality This document was reviewed for the IESG by Allison Mankin and Scott Bradner. Note to RFC Editor: Please replace the first paragraph in the introduction with: A fundamental weakness has been detected in SCTP's current Adler-32 checksum algorithm [STONE]. This document updates and replaces the Adler-32 checksum definition in [RFC 2960]. Note that there is no graceful transition mechanism for migrating to the new checksum. Implementations are expected to immediately switch to the new algorithm; use of the old algorithm is deprecated. One requirement of an effective checksum is that it evenly and smoothly spreads its input packets over the available check bits. _______________________________________________ tsvwg mailing list tsvwg@ietf.org https://www1.ietf.org/mailman/listinfo/tsvwg