Cryptographic Approach to “Privacy-Friendly” Tags
نویسندگان
چکیده
Radio frequency identification (RFID) is expected to become an important and ubiquitous infrastructure technology. As RFID tags are affixed to everyday items, they may be used to support various useful services. However, widespread deployment of RFID tags may create new threats to user privacy, due to the powerful tracking capability of the tags. There are several important technical points when constructing an RFID scheme. Particularly important is ensuring forward security, i.e., data transmitted today will still be secure even if secret tag information is revealed by tampering in the future. Low cost implementation is another key RFID requirement. This paper discusses and clarifies the requirements and restrictions of RFID systems. This paper also examines the features and issues pertinent to several existing RFID schemes. Finally, this paper suggests the use of our previously proposed scheme, which protects user privacy using a low-cost hash chain mechanism.
منابع مشابه
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