基于耦合动态整数帐篷映象格子模型构造了一种适用于 RFID 认证系统的轻量级 Hash 函数。该算法具有输出任意字节长度散列值的能力，定义在整数集上，克服了目前主流混沌密码算法需要进行浮点运算的缺陷，适用于硬件资源有限的系统。实验及仿真分析结果表明，该 Hash 函数具有较高的安全性，能够满足 RFID 认证系统的安全需求。%We design a lightweight Hash function based on coupled dynamic integral tent map lattice model,which applies to the authentication process between tags and reader in RFID system.Any length in byte of Hash value can be put out through the algorithm.What is more, it is suitable for the limited hardware resource system,because the domain of definition in algorithm is the integer set.Therefore,it overcomes the shortcoming which needs floating operation in most main-stream chaotic cryptographic algorithms.Experiment and simulation analysis show that the proposed Hash function has a high level of security,which satisfies the security requirement of the authentication system in RFID.
展开▼
