基于Rabin加密算法的RFID标签所有权转移协议

针对在物联网应用中，RFID标签在其生命周期内会涉及到所有权转移的问题，现有的RFID标签所有权转移协议存在安全缺陷或计算量大等不足，提出了一种改进的基于Rabin加密算法的RFID标签所有权转移协议。改进的协议不依赖可信第三方，协议摒弃传统的基于HASH函数加密方法，采用Rabin算法实现对信息的加密。采用挑战响应机制，利用Status标志位来标志标签当前所有权的归属，实现标签所有权的安全转移。分析结果表明，改进的协议不仅满足标签所有权转移的安全需求，而且克服了原协议中存在的暴力破解攻击安全缺陷问题，同时降低了标签的计算量，在安全性和效率方面较已有的RFID标签所有权转移协议有较大提升。

Ownership Transfer Protocol Based on Rabin Encryption Algorithm for RFID Tags

In the application of Internet of things, the RFID tag in its life cycle will involve the issue of transfer of ownership, and the existing RFID tag ownership transfer agreement problems such as safety defects or large amount of calculation, this paper puts forward an improved Rabin encryption algorithm of RFID tag ownership transfer agreement. The improved protocol does not rely on the trusted third party, at the same time agreement instead of the traditional cryptographic HASH function, Rabin algorithm was adopted to realize the information encryption. The challenge response mechanism, the use of the Status flags to signal the belonging of the ownership of a label the current implementation ownership transfer of security tag . The results show that the improved protocol not only meet the security requirements of tag ownership transfer, and overcome the brute force attack safety defects existing in the original agreement, at the same time reduces the amount of calculation in the process of tag, in terms of safety and efficiency compared with the existing RFID tag ownership transfer agreement has large improvement.