Re: [TLS] [Cfrg] 3DES diediedie

Tony Arcieri <bascule@gmail.com> Thu, 25 August 2016 02:50 UTC

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From: Tony Arcieri <bascule@gmail.com>
Date: Wed, 24 Aug 2016 19:44:57 -0700
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To: Stephen Farrell <stephen.farrell@cs.tcd.ie>
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Cc: "cfrg@irtf.org" <cfrg@irtf.org>, Benjamin Kaduk <kaduk@mit.edu>, "<tls@ietf.org>" <tls@ietf.org>
Subject: Re: [TLS] [Cfrg] 3DES diediedie
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On Wed, Aug 24, 2016 at 7:41 PM, Stephen Farrell <stephen.farrell@cs.tcd.ie>
wrote:

> On 25/08/16 03:34, Tony Arcieri wrote:
> I guess there's sometimes value in those die-die-die RFCs. Given that
> we have RFC7525/BCP195 [1] that already has a SHOULD NOT for effective
> key sizes less than 128 bits, one could argue that the IETF has covered
> that to a reasonable extent, in terms of RFCs saying to not do that.


Yes, aside from the 64-bit block size the the 112-bit (or sometimes
108-bit) key sizes are also notable for 3DES

-- 
Tony Arcieri