文中首先概括了RFID系统的安全需求和需要保护的位置,然后介绍了RFID物理安全机制和基于密码技术的安全机制,包括kill命令、阻塞标签、夹子标签、假名标签、Hash-Lock协议、随机化Hash-Lock协议、Hash链协议等,并对其安全性进行了分析,分别指出其存在的安全威胁。
This paper first summarizes the security demands of the RFID system and the locations which need to be protected in this system. Then it introduces the physical security mechanisms and password-based security mechanism of RFID, including kill command, blocker tag, clipped tag, tag pseudonyms, Hash-Lock protocol, randomized Hash-Lock protocol, Hash-Chain protocol, etc. Weak points or flaws in these mechanisms are also examined.