Friday, February 27, 2004

Making RFID more acceptable?

RFID blocker tags may soothe privacy fears

By mounting a denial of service attack on a RFID reader, the "blocker tag" removes the reader's ability to capture the unique code it would usually be able to probe.

Privacy concerns have so far stalled the widespread adoption of the tags and RSA believes the new blocker tag will make using RFID more acceptable ...

"The blocker simulates the presence of all possible tags," explains Ari Juels, the leader of the research project RSA. "The reader can't figure out which tags are there and eventually gives up."

But Ross Anderson, a computer scientist at Cambridge University in the UK, resents the onus being put on the consumer to dodge the technology: "I shouldn't have to buy anything extra. I want the tag removed in the store."


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