RFID (Radio Frequency Identification Device) inquiring-response safety certificate method based on grading key

Abstract

The invention relates to a RFID (Radio Frequency Identification Device) inquiring-response safety certificate method based on a grading key. In the certificate method provided in the invention, a grading key mechanism is introduced, thereby the problem of data safety of a forward air interface and a backward communication link in a RFID system can be effectively solved, access authority control among different users is realized, typical active and passive attacks can be effectively resisted, and the safety and privacy protection requirements of the system are satisfied. At the same time, in the protocol, complex encryption, decryption and verification operation are mainly delivered to a background database and a reader, thereby the calculated load and storage load of a label are reduced, the cost and power consumption of the label is saved, and the security of the system is improved. The invention is suitable for RFID application scenes that system resource is limited, and high security and privacy authentication protection are requested.

Description

technical field [0001] The invention relates to a hierarchical key-based RFID inquiry-response safety authentication method, belongs to the technical field of RFID communication safety, and relates to an RFID label safety authentication protocol. Background technique [0002] With the extensive development of RFID (Radio Frequency Identification) technology, the security issues of RFID systems, especially the security and privacy issues of the air interface, have become increasingly prominent, and have attracted widespread attention in the industry, becoming one of the key factors restricting the development of RFID technology applications. Due to the openness and wirelessness of the communication link, the air interface has great security risks and security vulnerabilities, and faces various security risks and threats, such as attacks such as counterfeiting, replay, tracking, traffic analysis, and denial of service. It is urgent to propose security measures and solutions su...

AI Technical Summary

Problems solved by technology

Due to the openness and wirelessness of the communication link, the air interface has great security risks and security vulnerabilities, and faces various security risks and threats, such as attacks such as counterfeiting, replay, tracking, traffic analysis, and denial of service. It is urgent to propose security measures and solutions suitable for RFID system hardware conditions

[0003] At present, most security mechanisms have no detailed restrictions on the access rights of legitimate readers. As long as the readers meet the identity authentication, they can read all the information of the tag. However, in different application scenarios, it may involve multiple parties. There is a commercial interest relationship between users and some tag data information involves the privacy protection of different users, so it is necessary to implement a certain access control mechanism for different readers to achieve security and privacy protection for different users

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