[6608] in cryptography@c2.net mail archive
Re: Interesting point about the declassified Capstone spec
daemon@ATHENA.MIT.EDU (L. Sassaman)
Fri Feb 11 15:31:13 2000
Date: Fri, 11 Feb 2000 15:21:03 -0500 (EST)
From: "L. Sassaman" <rabbi@quickie.net>
To: Peter Gutmann <pgut001@cs.auckland.ac.nz>
Cc: cryptography@c2.net
In-Reply-To: <95029576431183@kahu.cs.auckland.ac.nz>
Message-ID: <Pine.LNX.4.21.QNWS_2.0002111518410.13648-100000@thetis.deor.org>
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On Sat, 12 Feb 2000, Peter Gutmann wrote:
> Late last year the Capstone spec ("CAPSTONE (MYK-80) Specifications",
> R21-TECH-30-95) was partially declassified as the result of a FOIA lawsuit[0].
> The document is stamped "TOP SECRET UMBRA" on every page. UMBRA is a SIGINT
> codeword, not an INFOSEC one, so the people who designed the thing were very
> clear about what it was to be used for at a time when it was still being touted
> as a privacy device (the fact that it's described in the abstract as "a SIGINT
> friendly replacement for DES" probably doesn't help either).
>
> Peter.
>
> [0] I don't know if it's online, they were handed out at Crypto'99.
See http://cryptome.org/capstone.zip for the spec.
__
L. Sassaman
System Administrator | "All of the chaos
Technology Consultant | Makes perfect sense..."
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pgp.. finger://ns.quickie.net/rabbi | --Joe Diffie
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