随着无线射频识别(RFID)系统在无线通信中的广泛应用，其在无线通道中的标签信息安全问题受到越来越多的关注。针对目标对象的隐私泄漏问题，提出一种改进的高效RFID加密安全协议。该协议在散列Hash函数安全协议的基础上，融合二分搜索法和循环冗余校验法，实现后台信息系统对信息的快速搜索，同时避免了被篡改标签对后台信息系统的干扰。通过安全性分析和性能评估结果表明，与Hash-Lock协议、Hash-Chain协议和SPA协议相比，该协议在安全性、抗攻击能力、识别效率等方面具有更好的性能。%Radio Frequency Identification(RFID) is widely used in wireless signal system. However, with the development of RFID, security issues based on its non-contact type are paid more attention. Pointing at the privacy problems, this paper proposes an improved RFID encryption security protocol with high-efficiency, which combines Hash function, bin-search algorithm and Cyclic Redundancy Check(CRC) test together. It realizes the fast research progress, and avoids the interference of tampering label to the background information system. Security analysis and performance evaluation result show that this protocol has comprehensive advantages in security property, antiattack capability and identification rate compared with Hash-Lock protocol, Hash-Chain protocol and SPA protocol.
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