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The Channel Conjunction Mechanism (CCM) for GSS

Document Type Expired Internet-Draft (nfsv4 WG)
Expired & archived
Authors Mike Eisler , Nevin E. Williams
Last updated 2004-07-12
RFC stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Additional resources Mailing list discussion
Stream WG state WG Document
Document shepherd (None)
IESG IESG state Expired
Consensus boilerplate Unknown
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


This document describes a suite of new mechanisms under the GSS [RFC2743]. Some protocols, such as RPCSEC_GSS [RFC2203], use GSS to authenticate every message transfer, thereby incurring significant overhead due to the costs of cryptographic computation. While hardware-based cryptographic accelerators can mitigate such overhead, it is more likely that acceleration will be available for lower layer protocols, such as IPsec [RFC2401] than for upper layer protocols like RPCSEC_GSS. CCM can be used as a way to allow GSS mechanism- independent upper layer protocols to leverage the data stream protections of lower layer protocols, without the inconvenience of modifying the upper layer protocol to do so.


Mike Eisler
Nevin E. Williams

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)