基于NTRU公钥密码系统的RFID通信安全协议的研究

RFID Communication Security Protocol Based on NTRU Public Key Cryptosystem

提出使用NTRU公钥密码系统建立RFID通信安全协议。通过使用构造随机化函数对NTRU公钥密码系统的明文进行动态、随机化映射,使由其映射后的明文具有了动态、随机分布的特性,实现了对明文信息的隐蔽,抵御了对明文信息特性的统计,致使攻击者对所得信息及信息来源无法区分和识别。由此设计的安全协议不仅满足了RFID通信安全协议要求的保密性、认证性等基本功能,而且能够有效地解决流量分析、跟踪攻击、隐私泄漏等RFID系统特殊的安全问题。同时不需要穷尽搜索,不需要密钥同步,密钥存储、密钥管理系统简单,并且具有良好的可扩展性。

RFID communication security protocol based on NTRU public key cryptography system is established. The plaintexts are randomly mapped by structuring the randomization function, and then the plaintexts mapped possess the properties of dynamic and random distribution. As a result, the plaintext characteristics can be hidden and can＇t be taken statistics. And that attackers are unable to distinguish from the messages and the message sources. RFID communication security protocol established by the method is not only able to meet the basic confidentiality and authentication requirements, but also effectively solve the special security issues of RFID communication such as traffic analysis, tracking attack, privacy leakage and so on; Moreover, the method has the following advantages： without key synchronization and exhaustive search of ID or key, with simple key storage and key management system, and a good scalability.