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Re: [openpgp] OpenPGP SEIP downgrade attack

Werner Koch <wk@gnupg.org> Tue, 06 October 2015 07:01 UTC

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From: Werner Koch <wk@gnupg.org>
To: Peter Gutmann <pgut001@cs.auckland.ac.nz>
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Date: Tue, 06 Oct 2015 08:55:47 +0200
In-Reply-To: <9A043F3CF02CD34C8E74AC1594475C73F4B28383@uxcn10-5.UoA.auckland.ac.nz> (Peter Gutmann's message of "Tue, 6 Oct 2015 01:51:58 +0000")
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Subject: Re: [openpgp] OpenPGP SEIP downgrade attack
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On Tue,  6 Oct 2015 03:51, pgut001@cs.auckland.ac.nz said:

> We don't need to get it deployed, we need to get it replaced by encrypt-
> then-MAC, with the whole handled in a manner where downgrade attacks aren't
> possible.

And wait another 15 years until it has been taken up by all
implementations?  What is wrong with the planned AE mode?


Shalom-Salam,

   Werner

-- 
Die Gedanken sind frei.  Ausnahmen regelt ein Bundesgesetz.

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