[15711] in cryptography@c2.net mail archive
Re: EZ Pass and the fast lane ....
daemon@ATHENA.MIT.EDU (Ian Grigg)
Fri Jul 9 16:10:43 2004
X-Original-To: cryptography@metzdowd.com
X-Original-To: cryptography@metzdowd.com
Date: Thu, 08 Jul 2004 16:09:11 +0100
From: Ian Grigg <iang@systemics.com>
To: die@dieconsulting.com
Cc: cryptography@metzdowd.com
In-Reply-To: <p06110403bd0c89d2c0b8@[66.149.49.5]>
> Date: Fri, 2 Jul 2004 21:34:20 -0400
> From: Dave Emery <die@dieconsulting.com>
> To: cypherpunks@al-qaeda.net
> Subject: EZ Pass and the fast lane ....
> No mention is made of encryption or challenge response
> authentication but I guess that may or may not be part of the design
> (one would think it had better be, as picking off the ESN should be duck
> soup with suitable gear if not encrypted).
From a business perspective, it makes no
sense to spend any money on crypto for this
application. If it is free, sure use it,
but if not, then worry about the 0.01% of
users who fiddle the system later on.
It would be relatively easy to catch someone
doing this - just cross-correlate with other
information (address of home and work) and
then photograph the car at the on-ramp.
If the end result isn't as shown through
other means, then you have the evidence.
One high profile court case later, and the
chances of anyone copying this to escape
a toll fare shrink into the ignorable.
iang
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