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Re: [Discuss-gnuradio] detecting covert RFID scans

From: Daniel Pocock
Subject: Re: [Discuss-gnuradio] detecting covert RFID scans
Date: Sun, 27 Dec 2015 19:14:28 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Icedove/31.8.0

On 27/12/15 19:03, Marcus Müller wrote:
> The problem is that technically, the energy sent out by an RFID reader
> isn't big enough to detect readers from afar; they are near-field
> devices, as opposed to the typical far-field antenna based radio
> transmitters.

If the sniffer was carried in close proximity to the card itself (e.g.
the card and sniffer in a backpack) and the backpack passed a hidden
RFID scanner at the entrance to a shop, would the sniffer be able to
detect the communication?

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