RFID Privacy: An Overview of Problems and Proposed Solutions

Untraceability of RFID Protocols

“…A discussion of the importance of untraceability can be found in [14,15,16,17,18]. Several RFID protocols have been proposed with informal reasoning about their untraceability property [19,20,21,22] or based on the belief that protocols with random nonces in all messages are untraceable [23,24,25].…”

Continuous RFID-enabled authentication and its privacy implications

“…As a result, a person carrying an RFID tag could broadcast a unique serial number to all readers in the vicinity. It is difficult to implement strong and reliable authentication and encryption on RFID tags due to their weak computational power [5,11]. As a result, it is possible for RFID tags to leak information uniquely identifying a person or pertaining to their property.…”

“…Specific issues of preventing unauthorized RFID readouts and consequently increasing RFID security are beyond the scope of this paper, although, a number of different techniques that might prevent misuse of RFID have been proposed, e.g. [3,5,10,21,23,25]. Our main interest, however, is to examine a potential loss of privacy as a result of authorized RFID readouts, and in particular, how a large-scale deployment of an RFID system could impact the privacy of its users.…”

Untraceability in the applied pi-calculus

“…Related work While a number of papers discuss the privacy problems raised by RFID techonologies (see for example [14,15,20]), very few precisely define what they mean by untraceability. Avoine et al in [4] were the firsts to give a formal definition of untraceability.…”