Re: Compound authentication "issue"

Lawrence Greenfield <[email protected]> Fri, 20 Dec 2002 12:15:30 -0500
Newsgroups gmane.ietf.sacred
Message-ID <[email protected]>
--On Friday, December 20, 2002 7:37 AM -0600 Dale Gustafson 
<[email protected]> wrote:

> SACRED clients will include a unique value received from the TLS server
> (e.g., during session negotiation) within their digest-MD5 response.

DIGEST-MD5 is a mature standard that's already been deployed in other 
protocols (as a MUST implement for LDAP, for instance).

Changing DIGEST-MD5 is definitely a no-go. If you were going to do that, 
you could just define a new SASL mechanism.

Again, due to the properties of DIGEST-MD5 the attack under consideration 
is thwarted (and I like the proposed text).

Larry