[118210] in Cypherpunks
Re: Is There a Visor Security Model?
daemon@ATHENA.MIT.EDU (Dan Geer)
Tue Sep 21 23:48:05 1999
Message-Id: <199909220323.XAA22675@world.std.com>
To: Robert Hettinga <rah@shipwright.com>
cc: cryptography@c2.net, cypherpunks@cyberpass.net,
Digital Bearer Settlement List <dbs@philodox.com>
In-reply-to: Your message of "Tue, 21 Sep 1999 14:49:07 EDT."
<v04210140b40d82b2e5e2@[204.167.101.34]>
Date: Tue, 21 Sep 1999 23:23:54 -0400
From: Dan Geer <geer@world.std.com>
Reply-To: Dan Geer <geer@world.std.com>
The Palm's security model is, by most accounts I've seen, non-existant.
The issue is the lack of memory protection, i.e., that there is no
protected space for keying material. Visor is said to use the PalmOS
as is, so that is not a magic wand. Of course, if your OS has no memory
protection, you can always rely on yet another external hardware
device, as has already been mentioned.
--dan
