RFC 6331 · INFORMATIONAL · 2011
SUN · 14 JUN 2026
Moving DIGEST-MD5 to Historic
Overview
RFC 6331, “Moving DIGEST-MD5 to Historic”, is an Informational document published in July 2011 by A. Melnikov. It obsoletes RFC 2831. The canonical text is published by the RFC Editor.
Abstract
This memo describes problems with the DIGEST-MD5 Simple Authentication and Security Layer (SASL) mechanism as specified in RFC 2831. It marks DIGEST-MD5 as OBSOLETE in the IANA Registry of SASL mechanisms and moves RFC 2831 to Historic status. This document is not an Internet Standards Track specification; it is published for informational purposes.
What “Informational” means
Published for the general information of the community. It does not define an IETF standard and carries no standards-track status.
Read this RFC
The canonical text of RFC 6331 is hosted at rfc-editor.org. Available in TXT,HTML.
Relationships to other RFCs
Other RFCs from 2011
- RFC 6330 RaptorQ Forward Error Correction Scheme for Object Delivery
- RFC 6332 Multicast Acquisition Report Block Type for RTP Control Protocol Extended Reports
- RFC 6333 Dual-Stack Lite Broadband Deployments Following IPv4 Exhaustion
- RFC 6328 IANA Considerations for Network Layer Protocol Identifiers
- RFC 6334 Dynamic Host Configuration Protocol for IPv6 Option for Dual-Stack Lite
- RFC 6327 Routing Bridges : Adjacency
- RFC 6335 Internet Assigned Numbers Authority Procedures for the Management of the Service Name and Transport Protocol Port Number Registry
- RFC 6326 Transparent Interconnection of Lots of Links Use of IS-IS