HMAC SHA TSIG Algorithm Identifiers
RFC 4635, “HMAC SHA TSIG Algorithm Identifiers”, is a Proposed Standard document published in August 2006 by D. Eastlake 3rd. It updates RFC 2845. It has been obsoleted by RFC 8945 — refer to the newer document for the authoritative version. The canonical text is published by the RFC Editor.
Abstract
Use of the Domain Name System TSIG resource record requires specification of a cryptographic message authentication code. Currently, identifiers have been specified only for HMAC MD5 (Hashed Message Authentication Code, Message Digest 5) and GSS (Generic Security Service) TSIG algorithms. This document standardizes identifiers and implementation requirements for additional HMAC SHA (Secure Hash Algorithm) TSIG algorithms and standardizes how to specify and handle the truncation of HMAC values in TSIG. [STANDARDS-TRACK]
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 4635 is hosted at rfc-editor.org. Available in TXT,HTML.
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