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Re: Tamperproof devices and backdoors

daemon@ATHENA.MIT.EDU (dmolnar)
Fri May 25 12:17:38 2001

Date: Fri, 25 May 2001 11:02:30 -0400 (EDT)
From: dmolnar <dmolnar@hcs.harvard.edu>
To: Matt Blaze <mab@research.att.com>
Cc: <cryptography@wasabisystems.com>, <coderpunks@toad.com>
In-Reply-To: <200105251350.f4PDoaG87235@fbi.crypto.com>
Message-ID: <Pine.OSF.4.33.0105251059250.1752-100000@hcs.harvard.edu>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII



On Fri, 25 May 2001, Matt Blaze wrote:

> That's it.  I vaguely recall paper about a year or two ago by, I think,
> Bart Preenel, that expanded on a similar idea.  I don't think it cited
> our MKCS tech report, so I presume he wasn't aware of it and took a slightly
> different direction.

That is likely

V. Rijmen, B. Preneel, "A family of trapdoor ciphers," Fast Software
Encryption, LNCS 1267, E. Biham, Ed., Springer-Verlag, 1997, pp. 139-148
http://www.esat.kuleuven.ac.be/~rijmen/downloadable/rijmen/trapdoor.ps.gz


-david




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