基于非线性译码问题的RFID安全协议

射频识别技术是一种非接触式的自动识别技术,但射频识别（RFID,Radio Frequency Identification）,系统的局限性带来了许多安全挑战。针对这些安全问题,基于HB＋协议认证模式,以非线性译码问题为基础,提出了一种适用于RFID系统的轻量级NLHB＋协议。在＂DET＂模型中证明了协议可以抵御主动攻击。分析表明,利用非线性布尔函数的特性和非线性译码问题的困难性可以实现对RFID系统的有效保护,其具有低成本、高效率、低复杂度等特点,有利于RFID技术的发展与应用。

RFID Security Protocol based on Non-linear Decoding Problem

Radio Frequency Identification（RFID）technology is a non-contact automatic identification technology.However,the limitations of RFID systems bring about many security challenges.For these issues,a lightweight NLHB protocol suitable for RFID system is propopsed,which is based on non-linear decoding problem and HB＋ protocol authentication mode.In ＂DET＂ model,the NLHB＋ protocol is proved resist ant to active attacks.Analyses show that the characteristics of non-linear Boolean function and the difficulty of the non-linear decoding problem could protect the RFID system effectively.The protocol with low cost,high efficiency and low complexity,etc,could contribute to the development and application of RFID technology.