Privacy-Enhancing Radio Frequency Identification Tag: Implementation of the Privacy-Enhancing Clipped Tag

As the implementation of radio frequency identification, RFID, tagging of pallets and cases for the retail supply chain proceeds, attention is being given to the possibility of RFID tagging for individual retail items. The sale of tagged retail goods gives rise to measures to enhance consumer privacy. Ultra-high frequency tags may be read by wireless means of distances up to around 30 feet (10 meters). High frequency tags also may be read wirelessly, but generally at a shorter range.

Mechanisms have been proposed to address enhanced consumer privacy upon the introduction of item-level tagging. One of them is the use of “Blocker Tags” [1] proposed by RSA Laboratories, a security and privacy organization. These tags interfere with the reading of other RFID tags. They must be carried by the consumer. Another mechanism is the EPCglobal Gen2 protocol “Kill” command [2] which deactivates tags permanently. The Kill command is executed by the retailer at the point-of-sale. Killed tags cannot be revived.

By: Paul A. Moskowitz; Andris Lauris; Stephen S. Morris

Published in: RC24023 in 2006


This Research Report is available. This report has been submitted for publication outside of IBM and will probably be copyrighted if accepted for publication. It has been issued as a Research Report for early dissemination of its contents. In view of the transfer of copyright to the outside publisher, its distribution outside of IBM prior to publication should be limited to peer communications and specific requests. After outside publication, requests should be filled only by reprints or legally obtained copies of the article (e.g., payment of royalties). I have read and understand this notice and am a member of the scientific community outside or inside of IBM seeking a single copy only.


Questions about this service can be mailed to .