[119365] in cryptography@c2.net mail archive
Re: how to read information from RFID equipped credit cards
daemon@ATHENA.MIT.EDU (Steven J. Murdoch)
Wed Apr 2 11:14:56 2008
Date: Tue, 1 Apr 2008 02:44:46 +0100
From: "Steven J. Murdoch" <crypto+Steven.Murdoch@cl.cam.ac.uk>
To: cryptography@metzdowd.com
In-Reply-To: <E1JgIUL-0007bZ-Oh@wintermute01.cs.auckland.ac.nz>
On Tue, Apr 01, 2008 at 12:47:45AM +1300, Peter Gutmann wrote:
> Actually there are already companies doing something like this, but they've
> run into a problem that no-one has ever considered so far: The GTCYM needs a
> (relatively) high-bandwidth connection to a remote server, and there's no easy
> way to do this.
You can get a fairly high-bandwidth channel with 2D barcodes. It's
uni-directional, but that's enough for many useful scenarios. The data
gets shown on the PC monitor and is captured by a ubiquitous
camera-phone or a dedicated locked-down device. This approach avoids
the problems you mentioned about USB/Firewire/Ethernet lockdown.
Disclosure: I work for a company, Cronto, which makes a product based
around this technology -- http://www.cronto.com/
Steven.
--
w: http://www.cl.cam.ac.uk/users/sjm217/
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