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RE: IPSEC on a Palm III?

daemon@ATHENA.MIT.EDU (David Honig)
Wed Apr 7 17:32:51 1999

Date: Wed, 07 Apr 1999 12:59:56 -0700
To: Ulrich Kuehn <kuehn@ESCHER.UNI-MUENSTER.DE>
From: David Honig <honig@sprynet.com>
Cc: William Whyte <wwhyte@baltimore.ie>,
        "'Robert Hettinga'" <rah@shipwright.com>,
        "cryptography@c2.net" <cryptography@c2.net>
In-Reply-To: <199904070953.LAA10148@fasolt.uni-muenster.de>

At 11:53 AM 4/7/99 +0200, Ulrich Kuehn wrote:
>David Honig writes:
> > At 09:58 PM 4/6/99 +0100, William Whyte wrote:
> > >I did a back-of-an-envelope calculation recently which made it look
> > >like they could just about hack RSA public key operations, and
> > >presumably also ECDSA/ECDH, but would take way too long (c. 2 minutes)
> > >to do RSA private key ops or DSA/DH. As you work up towards the bigger
> > >Palms the figures get better, but still scary.

> > Hmm.. a crypto-ibutton would not take up much space...

>The crypto ibutton has no display, but you might want to know what
>exactly you are signing. The ibutton thus has the requirement for a
>trusted environment with a trusted application communicating with it,
>which is hopefully not the case with the Palm pilot.
>
>Ulrich

I meant that you could *embed* the i-Button into a 'Pilot.  
As a coprocessor/accelerator for the 'Pilot.  
Treating the Pilot + button as the trusted box.











  






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