Looking for crypto iButton specs
R.A. Hettinga
rah at shipwright.com
Mon Jul 11 09:14:09 EDT 2005
--- begin forwarded text
From: pgut001 at cs.auckland.ac.nz (Peter Gutmann)
To: cypherpunks at jfet.org
Subject: Looking for crypto iButton specs
Date: Tue, 12 Jul 2005 00:56:35 +1200
Sender: owner-cypherpunks at jfet.org
During a recent discussion about secure crypto device bootstrap and
attestation capabilities, I realised that of the three devices for which this
was implemented and for which documentation was available (Fortezza, IBM 4758,
and Dallas Crypto iButton), I either don't have any documentation for the
Crypto iButton or I've filed it under something sufficiently misleading that I
can't find it any more. So:
Does anyone still have the documentation for the DS1954 Crypto iButton? Note
that I specifically mean the DS1954 Crypto iButton before its Javafuxation,
which removed the very nice crypto security model and crypto transaction
processing/scripting capability. Dallas systematically excised any traces of
the pre-Javafuxated version from databooks and web pages, so it'd be a case of
someone having a copy archived somewhere. It was a very nice design and I'd
like to have some record of it outside the summary I put in my Godzilla
security tutorial.
(If whoever did the design is reading this, I'd be interested in hearing from
them as well).
Peter.
--- end forwarded text
--
-----------------
R. A. Hettinga <mailto: rah at ibuc.com>
The Internet Bearer Underwriting Corporation <http://www.ibuc.com/>
44 Farquhar Street, Boston, MA 02131 USA
"... however it may deserve respect for its usefulness and antiquity,
[predicting the end of the world] has not been found agreeable to
experience." -- Edward Gibbon, 'Decline and Fall of the Roman Empire'
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