Re: Java iButton from Dallas Semiconductor

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Ben Laurie (ben@algroup.co.uk)
Mon, 30 Mar 1998 23:30:16 +0100


Ryan Lackey wrote:
>
> cg@pobox.com said:
> > Is this export paranoia? I understood (but I'm sure you can fill me in) that
> > the "crypto" part is just an exponentiator. Can't imagine that such a simple
> > piece of hardware would be export-controlled. A real pity if one of the most
> > interesting features would be disabled.
>
> Yep, it's excessive export paranoia. The specs for the crypto i-button
> are up on the web -- www.ibutton.com/crypto.html. I'm not sure exactly
> what got blown away in the java version -- to be honest, I've not
> actually touched the java ones yet.
>
> I think part of it may be a question of what software is available. I
> should look into this more.
> >
> > Are you sure 98Q3 is the timeframe for the 134k version? A guy from Dallas at
> > J1 told me it would rather be '99 before that one was finished (but, as it
> > happens on busy conferences, I may have misunderstood him).
>
> I believe I was told a developer could potentially get them in 98Q4, and
> that they'd ship in quantity starting in 1999.
> >
> > I'd be interested in a "button hacker group", although I'll probably have to
> > stick to just the Java version (no time to learn the other stuff).
>
> If anyone else is interested in a button hacker group, send me mail and
> I'll put you on a button-specific mailing list.

Yep.

> >
> > > They're really cool toys.
> >
> > Probably the best way to put it :-)
>
> If only there were a simple way to graft an LED and microswitch onto them
> to enter a PIN and reveal internal state without trusting the local
> computer... Sounds like a fun hardware hacking project.

There probably is - one of the gadgets in the applications book is a pen
with an LCD display that can talk iButton - it is completely trivial.

> Another cool project would be porting IBM CCA or the ncipher API to
> an ibutton array...imagine, $1200 for 300 RSA 1024-bit signs/second,
> same performance as a $20k ncipher, with a *higher* level of hardware
> security.

:-)

Cheers,

Ben.

-- 
Ben Laurie            |Phone: +44 (181) 735 0686|  Apache Group member
Freelance Consultant  |Fax:   +44 (181) 735 0689|http://www.apache.org
and Technical Director|Email: ben@algroup.co.uk |
A.L. Digital Ltd,     |Apache-SSL author    http://www.apache-ssl.org/
London, England.      |"Apache: TDG" http://www.ora.com/catalog/apache


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The following archive was created by hippie-mail 7.98617-22 on Fri Aug 21 1998 - 17:16:24 ADT