A New Internet-Draft is available from the on-line Internet-Drafts
directories.
Title : Salted Challenge Response Authentication Mechanism (SCRAM) as a GSS-API Mechanism
Author(s) : A. Menon-Sen, A. Melnikov, C. Newman
Filename : draft-newman-auth-scram-gs2-01.txt
Pages : 20
Date : 2009-3-9
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 an authentication mechanism 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, SCRAM 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.
The purpose of this document is to describe the general SCRAM
protocol, and how it is used in the GSS-API environment. Through
GS2, this makes the protocol available in the SASL environment as
well.
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http://www.ietf.org/internet-drafts/draft-newman-auth-scram-gs2-01.txt
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