@InProceedings{JRS03,
  author = 	 { Ari Juels and Ronald L. Rivest and Michael Szydlo },
  title = 	 { The {Blocker Tag}: Selective blocking of {RFID} Tags for Consumer Privacy },
  pages = 	 { 103--111 },
  doi =          { 10.1145/948109.948126 },
  acm =          { 784297 },
  booktitle =    { Proceedings Tenth ACM Conference on Computer and Communications Security },
  publisher =    { ACM },
  isbn =         { 1-58113-738-9 },                  
  editor = 	 { Vijay Atluri and Trent Jaeger },
  date =         { 2003-10 },                  
  OPTyear = 	 { 2003 },
  OPTmonth = 	 { October 27--30 },
  eventtitle =   { CCS'03 },
  evenetdate =   { 2003-10-27/2003-10-30 },                  
  venue =        { Washington, DC },                  
  urla =         { <a href="http://www.rsa.com/rsalabs/node.asp?id=2060">RSA page</a> },                  
  keywords =     { barcodes, privacy, RFID tags, tree walking },
  abstract =     {                  
        We propose the use of ``selective blocking'' by ``blocker tags''
        as a way of protecting consumers from unwanted scanning
        of RFID tags attached to items they may be carrying or
        wearing.
        \par                   
        While an ordinary RFID tag is a simple, cheap (e.g. five-cent)
        passive device intended as an ``electronic bar-code'' for
        use in supply-chain management, a blocker tag is a cheap
        passive RFID device that can simulate many ordinary RFID
        tags simultaneously. When carried by a consumer, a blocker
        tag thus ``blocks'' RFID readers. It can do so universally by
        simulating all possible RFID tags. Or a blocker tag can
        block selectively by simulating only selected subsets of ID
        codes, such as those by a particular manufacturer, or those
        in a designated ``privacy zone.''
        \par                  
        We believe that this approach, when used with appropriate
        care, provides a very attractive alternative for addressing
        privacy concerns raised by the potential (and likely)
        widespread use of RFID tags in consumer products.
        We also discuss possible abuses arising from blocker tags,
        and means for detecting and dealing with them.
                  },
}