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Date: Wed, 21 Oct 2015 17:01:13 +0200
From: Matthias Weckbecker <>
Subject: Re: Prime example of a can of worms

On Mon, 19 Oct 2015 17:40:14 -0400
Daniel Kahn Gillmor <> wrote:
> On the flip side, saying "use only strong (>=2048bit today in 2015?),
> well-known, well-structured, publicly-vetted groups" is very simple
> guidance: clear and easy to follow.

Interestingly I noticed OpenSSH bumped their 'DH_GRP_MIN' to 2048 bit
just a few days ago to account for precomputation attacks:

RFC4419 seems to recommend 1024 bit minimum, but the document appears
to be from 2006.

>       --dkg


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