A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Salted Challenge Response (SCRAM) SASL Mechanism (GS2 variant)
Author(s) : A. Menon-Sen, et al.
Filename : draft-newman-auth-scram-gs2-00.txt
Pages : 20
Date : 2009-02-03
The secure authentication mechanism most widely deployed and used by
Internet application protocols is the transmission of clear-text
passwords over a channel protected by Transport Layer Security
(TLS). There are some significant security concerns with that
mechanism, which could be addressed by the use of a challenge
response authentication mechanism protected by TLS. Unfortunately,
the challenge response mechanisms presently on the standards track
all fail to meet requirements necessary for widespread deployment,
and have had success only in limited use.
This specification describes a family of authentication mechanisms
called the Salted Challenge Response Authentication Mechanism
(SCRAM), which addresses the security concerns and meets the
deployability requirements. When used in combination with TLS or an
equivalent security layer, a mechanism from this family could
improve the status-quo for application protocol authentication and
provide a suitable choice for a mandatory-to-implement mechanism for
future application protocol standards.
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http://www.ietf.org/internet-drafts/draft-newman-auth-scram-gs2-00.txt
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