摘要： 针对射频识别系统存在用户安全、隐私等问题，讨论现有协议的优缺点，提出一种新的基于密码学的安全认证协议。该协议利用Hash函数的单向性特点和对称密钥方法，较好地解决了RFID的安全隐患问题。实验分析表明，该协议具有不可分辨性、前向安全、重传攻击、哄骗攻击等特点，适合于低成本、低计算量、分布式的RFID系统。

关键词: 射频识别, 隐私, 安全协议, Hash函数, 密钥

Abstract: Radio Frequency Identification(RFID) is researched widely and applied to various fields. However, RFID still confronts many problems such as consumers’ security and privacy. This paper presents the advantage and deficiency of current solutions to RFID. A new encrypted authentication approach is proposed, which employs the one-way hash function and a symmetric key. Compared with current protocols, it achieves in distinguish ability, forward security, replay attack, and spoofing attack. As a result, the protocol can be used in low-cost, limited computation system, and ubiquitous computing environment.

Key words: Radio Frequency Identification(RFID), privacy, security protocol, Hash function, key

中图分类号: 

• TP309