供应链环境下UC安全的RFID所有权转移协议*

针对供应链环境下无线射频识别(RFID)标签流动所涉及的节点隐私和供应链可见性管理问题，定义了供应链环境下RFID标签所有权转移的安全需求，提出了通用可组合安全模型，并基于所提出的RFID认证协议，设计了一个能实现该模型的RFID标签所有权转移协议。安全性证明和效率分析表明该协议通过利用授权机制和哈希函数的单向性，很好地解决了可见性和不可追踪性问题，采用索引机制和标签端轻量级的计算方式提高了执行效率。与同类方案相比，该协议降低了标签端的计算量且安全性更高。

A Universally Composable Secure Ownership Transfer Protocol for RFID Tags in Supply Chains*

Radio Frequency Identification(RFID) tags flowing in supply chains involved in the issues of nodes privacy and the visibility of the supply chain management,for which this paper defined security requirements of the RFID tag ownership transfer in supply chains, proposed a universally composable model and designed a RFID tag ownership transfer protocol to implement the universally composable model,based on the RFID authentication protocol proposed.The security proof and efficiency analysis show that through the use of authorization mechanism and one-way hash function,the protocol can ensure perfectly the visibility and untraceability.Besides,the adoption of the index system and lightweight computing techniques on tags improves the execution efficiency. Compared with congener schemes, the protocol reduces the computation for the tag and is more secure.