阅读器破坏条件下RFID前向安全认证协议

摘要

无线射频识别( RFID)是一种可实现自动识别和数据获取的无线技术，其在健康护理领域应用广泛并已成为该领域的主导识别技术。 RFID系统的安全与隐私问题受到越来越多的关注，许多基于椭圆曲线密码系统或Hash函数的认证协议都实现了保护系统安全性和隐私性的设计目标，但很少有协议考虑标签或阅读器破坏条件下的前向安全性。对新近提出的三个安全协议进行了分析，结果表明，三个协议并不能在标签或阅读器破坏下提供前向隐私保护，进而提出一种改进的基于ECC的RFID认证协议，对改进协议的安全性进行了详细分析。结果表明，新协议在满足各安全需求的同时，可以提供阅读器破坏条件下的前向安全性，而且新协议需要的计算开销更少，效率更优。%Radio Frequency Identification ( RFID) is a wireless technology for automatic identification and data capture and is deployed as a dominant identification technology in a health care domain. Security and privacy issues in the RFID systems have attracted much atten-tion,and many authentication protocols based on Elliptic Curve Cryptosystem ( ECC) or Hash functions have been proposed to achieve the security and privacy goals,but seldom protocols have considered the forward security with tag or reader corruption,which can be viewed as the highest level of user privacy. Three recently protocols presented respectively suffer from the forward privacy problem with tag or reader corruption. To enhance the security,an improved efficient ECC-based RFID authentication protocol is put forward. A com-prehensive analysis shows the new scheme can not only provide the strong forward security with reader corruption besides all the other se-curity requirements,but also have more functionality in terms of computational cost.