置换再交叉运算的所有权转移协议

OWNERSHIP TRANSFER PROTOCOL ON REP-REC

针对标签生命周期中归属权转变过程中存在的隐私信息易泄露问题,设计一种基于置换再交叉运算的所有权转移协议。协议为保证隐私信息的安全性,采用基于大数分解难题的二次剩余定理对部分信息加密;同时协议为保证尽可能降低系统的计算量,引入基于位运算的置换再交叉运算对部分信息加密。为抵抗常见类型攻击方式,协议采用先认证再操作的机制。将该协议与其他协议进行安全性和性能分析,该协议具备安全性高、计算量小等优势。

In order to solve the problem that privacy information is easy to leak in the process of ownership transformation in the label life cycle,a ownership transfer protocol based on Rep-Rec is designed.In order to ensure the security of privacy information,the protocol encrypted the partial information by using the quadratic residual theorem based on the big number decomposition problem.At the same time,in order to reduce the calculation of the system as much as possible,the protocol introduced the replacement and cross operation based on bit operation to encrypt partial information.In order to resist common types of attacks,the protocol adopted the mechanism of authentication before operation.This paper analyzed the security and performance of this protocol and other protocols.This protocol has the advantages of high security and small computation.