一种支持密钥协商的标签所有权转换协议

针对标签在流通过程中的安全通信和所有权安全转换问题，提出了一种能提供密钥协商功能的标签所有权转换协议。通过将该协议分为认证与密钥协商和所有权转换与异常恢复两个阶段来实现相应的功能。采用GNY逻辑对协议的安全性进行了分析，结果表明该协议能够提供标签与所有者之间的双向认证和会话密钥协商，将标签的所有权安全地转换给新所有者，并能抵御中间人攻击、重放攻击和去同步化攻击等多种攻击手段。在Linux系统中实现了该协议，获取了标签计算耗时等运行指标。实验数据表明，标签的计算耗时较短，适用于低成本标签。

Ownership transfer protocol supporting key negotiation

The paper proposed an ownership transfer protocol supporting key negotiation in order to provide secure communication and ownership transfer during the circulation process of tags. The protocol is divided into authentication phase and key negotiation phase, ownership transfer phase and exception recovery phase. The paper analyzed security property of the protocol by GNY logic. The result indicates it provides mutual authentication and key negotiation between tags and owners. It securely transfers ownership of tag to new owner. The protocol resists man-in-middle attack, replay attack and desynchronization attack, etc. The protocol was implemented in Linux and obtained some experimental data. It shows the cost time of tag is short. The protocol is suitable for low-cost tags.