Re: [Cfrg] Analysis of ipcrypt?

Greg Rose <ggr@seer-grog.net> Thu, 22 February 2018 14:11 UTC

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From: Greg Rose <ggr@seer-grog.net>
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Date: Thu, 22 Feb 2018 06:11:38 -0800
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Cc: Greg Rose <ggr@seer-grog.net>, Paul Hoffman <paul.hoffman@icann.org>, Samuel Neves <sneves@dei.uc.pt>, "cfrg@irtf.org" <cfrg@irtf.org>
To: "Jason A. Donenfeld" <Jason@zx2c4.com>
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Subject: Re: [Cfrg] Analysis of ipcrypt?
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I cooked up "skip32" for a similar purpose a decade or two ago. It's based on Skipjack. Googling for it just now, it appears to be the most widely-deployed cipher I worked on... lots of implementations.

Greg.
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> On Feb 22, 2018, at 1:11 , Jason A. Donenfeld <Jason@zx2c4.com> wrote:
> 
> Hi Paul,
> 
> Found this last night shortly after you posted this message. The
> attached program Samuel (CC'd) and I just drummed up may be cause for
> concern. You may not want to use ipcrypt.
> 
> Regards,
> Jason
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