17 Nov 2010 jas   » (Master)

GNU SASL with SCRAM-SHA-1-PLUS

I have finished the SCRAM implementation in GNU SASL. The remaining feature to be added were support for the “enhanced” SCRAM-SHA-1-PLUS variant instead of just the normal SCRAM-SHA-1 mechanism. The difference is that the latter supports channel bindings to TLS, which makes it possible to detect man-in-the-middle attacks even if TLS is not used with server authentication. In GnuTLS we recently added an API for applications to extract channel bindings, which you will need to use in order to use SCRAM-SHA-1-PLUS. I announced the experimental version 1.5.4 release together with a writeup on how to test it. With this, our support for SCRAM should be complete.

Syndicated 2010-11-16 23:24:48 from Simon Josefsson's blog

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