[Cryptography] cryptography Digest, Vol 16, Issue 26

[Bear]

On Wed, 2014-08-27 at 15:21 -0400, Peter Trei wrote:

> 
> You can easily modify one to inform you of when its queried:
> http://www.popsci.com/article/diy/ezpass-hack-covert-scanning
> 
> ...and it turns out they're queried all over the place, not just at
> tolls. There have been proposals for a 'kill switch' which would 
> allow you to disable it except when approaching a toll, but I
> haven't seen that.

I've got one.  It's an envelope lined with copper foil. I get 
the pass out when approaching a toll booth, and put it back 
(and put the 'chip clip' back on the envelope to ensure that 
the foil makes good electrical contact) as I pull away from 
the toll booth.  

A toggle switch would be nice, but we can be fairly confident
that a Faraday cage is working as designed. 

				Bear