A ttp-based electronic tag ownership transfer method

Abstract

The invention relates to the technical field of information security, in particular to a TTP-based electronic label ownership transfer method. The steps of the block rearrangement algorithm Br(X, Y) adopted by the method include: respectively block the operand X and the operand Y to obtain the first operation set and the second operation set whose number of elements is n; the operand X is any one of the keys; the operand Y is the corresponding random number; according to the preset rules, the elements in the first operation set and the second operation set are corresponding to obtain the Hamming weight of the corresponding elements; respectively, the first operation set and each element in the second operation set is cyclically shifted to the right by the number of digits of the Hamming weight of the corresponding element to obtain operand X' and operand Y'; XOR is performed on operand X' and operand Y' to obtain an encryption result. The block rearrangement algorithm conforms to lightweight standards and has strong irreversibility, which solves the technical problem that the label ownership transfer protocol in the prior art cannot provide forward privacy security and is vulnerable to desynchronization attacks and DoS attacks.

Description

technical field [0001] The invention relates to the technical field of information security, in particular to a TTP-based electronic label ownership transfer method and system. Background technique [0002] RFID radio frequency identification technology is a key technology in the sensing layer of the Internet of Things. Barcodes for optical scanning require contact with the reader within the line of sight. On the contrary, RFID tags can identify and scan without line of sight contact and without precise positioning. In addition, RFID tags can be scanned by readers hundreds of times per second. RFID tags have obvious advantages in both the flexibility of identification and the efficiency of identification. Although the use of RFID tags brings convenience, it also needs to solve the security and privacy issues existing in wireless transmission between readers and tags. Tag ownership refers to the owner's ability to control access to read and write tags. The transfer of good...

AI Technical Summary

Problems solved by technology

[0004] Osaka et al. proposed a TTP-based ownership transfer protocol, which is based on Hash function and key encryption function, but the ownership transfer protocol cannot provide forward privacy security and is vulnerable to desynchronization attacks and DoS attacks.

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