An RSA blocker tag (or RSA tag) is a
RFID
Radio-frequency identification (RFID) uses electromagnetic fields to automatically identify and track tags attached to objects. An RFID system consists of a tiny radio transponder, a radio receiver and transmitter. When triggered by an electromag ...
tag that responds positively to all unauthorized requests, thus blocking some
scanners from reading any RFID tags placed nearby. The tags are designed to protect privacy, and are supposedly unable to be used for theft, denials of service, and other malicious uses.
Other mechanisms designed to protect privacy for RFID item tagging for retail use are the
EPCglobal
The Electronic Product Code (EPC) is designed as a universal identifier (using a idiosyncratic numerical code for each different commodity) that provides a unique identity for every physical object anywhere in the world, for all time. The EPC stru ...
kill command and the
Clipped Tag proposed by
IBM.
External links
RSA Labs press release
See also
*
Contactless smart card
A contactless smart card is a contactless credential whose dimensions are credit-card size. Its embedded integrated circuits can store (and sometimes process) data and communicate with a terminal via NFC. Commonplace uses include transit tickets ...
Radio-frequency identification
Hardware device blockers
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