Re: SCRAM with channel binding downgrade attack

From: Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com>
To: Magnus Hagander <magnus(at)hagander(dot)net>
Cc: Michael Paquier <michael(at)paquier(dot)xyz>, Heikki Linnakangas <hlinnaka(at)iki(dot)fi>, Postgres hackers <pgsql-hackers(at)postgresql(dot)org>, Robert Haas <robertmhaas(at)gmail(dot)com>, Stephen Frost <sfrost(at)snowman(dot)net>, Bruce Momjian <bruce(at)momjian(dot)us>
Subject: Re: SCRAM with channel binding downgrade attack
Date: 2018-06-28 08:05:23
Message-ID: 1c0084ce-7ed8-fb77-08ea-86cdc6f17288@2ndquadrant.com
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On 6/28/18 09:33, Magnus Hagander wrote:
> Should there be one or more parameters? How should they interact? At
> which level should they be controlled? Limited to SCRAM or other channel
> bindings? Are the different levels of SCRAM to be considered different
> protocols or the same protocol with a tweak? etc.

OK, I'm fine with postponing this.

But before we drop the SCRAM business completely off the open items, I
think we need to consider how TLS 1.3 affects this.

--
Peter Eisentraut http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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