Privacy protection method of radio frequency identification device (RFID) system

Abstract

The invention discloses a privacy protection method of a radio frequency identification device (RFID) system and belongs to the field of RFID system communication safety. The method includes the following steps that an RFID reader-writer inquires a tag; the tag responds the RFID reader-writer; the RFID reader-writer submits a verification request to a background server; the background server verifies the identity of the tag; the background server submits a verification request to a legal tag; the tag verifies the identity of the RFID reader-writer; and the tag transmits an original identity to an RFID. According to the method, tracking of illegal RFID reader-writers to the RFID tag can be prevented, confidentiality of data transmitted by the RFID tag can be protected, the RFID reader-writer can effectively read right information in the RFID tag, defects of Kill mechanisms and sleep mechanisms can be effectively overcome, and the method can be widely used in passive tags.

Description

technical field [0001] The invention relates to a privacy protection method of an RFID system, which belongs to the field of RFID system communication security. Background technique [0002] With the development and wide application of RFID technology, security risks related to RFID will follow, and privacy protection is one of the major challenges in the development of RFID. It is conceivable that if the RFID system is attacked, personal information, business information and property may be lost or stolen by others, resulting in factory shutdowns, store closures, social disorder, and even a direct threat to human life, so privacy protection becomes a constraint The bottleneck of large-scale application of RFID system has also become a key technology in design, deployment and application. [0003] Different from traditional networks that use encryption to protect the confidentiality of private data and use anonymous technology to protect user identities, privacy protection ...

AI Technical Summary

Problems solved by technology

According to the different target protection objects, the privacy protection in the RFID system is mainly based on information protection and location protection. The privacy protection technology in the traditional network cannot be directly applied to the RFID system.

[0005] (2) Resource constraints

Put the RFID tag into the Faraday mesh cover, then the RFID tag cannot be scanned from outside the cover, and the RFID tag inside the cover can neither receive wireless signals nor send wireless signals out

[0009] (3) Active interference

[0011] However, we found that when using logical methods to protect user privacy, even if the ID number of the RFID tag is encrypted, the result of the encryption has not changed, so the attack Although the attacker does not know the encrypted content, it also exposes the user's location privacy

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