Re: [saag] AD review of draft-iab-crypto-alg-agility-06

"Paterson, Kenny" <Kenny.Paterson@rhul.ac.uk> Wed, 26 August 2015 10:28 UTC

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From: "Paterson, Kenny" <Kenny.Paterson@rhul.ac.uk>
To: Stephen Farrell <stephen.farrell@cs.tcd.ie>, Yoav Nir <ynir.ietf@gmail.com>
Thread-Topic: [saag] AD review of draft-iab-crypto-alg-agility-06
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Date: Wed, 26 Aug 2015 10:27:51 +0000
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Cc: Security Area Advisory Group <saag@ietf.org>
Subject: Re: [saag] AD review of draft-iab-crypto-alg-agility-06
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Hi

On 26/08/2015 10:54, "Stephen Farrell" <stephen.farrell@cs.tcd.ie>; wrote:

>
>
>On 25/08/15 23:53, Paterson, Kenny wrote:
>> And it feels to me that, for RC4, the currently known public techniques
>> are starting to run out of steam.
>
>Thanks. I wasn't aware of that.

To be clear: it's just my personal opinion, based on working on this
specific area for a while. We shouldn't ignore the possibility of smarter
people being attracted to the problem now and making progress with new
ideas.

>
>The only thing I'd add to your mail is that when you say that we don't
>know how attacks will evolve, that's not quite true. We do know that
>the attacks always get better, but we don't know by how much or when.

Agreed, and I'm now surprised I didn't write that myself ;-)

Cheers

Kenny 

>
>S.