【作者】 张杰； 徐勇军； 樊兆龙； 刁博宇；

【Author】 ZHANG Jie;XU Yong-jun;FAN Zhao-long;DIAO Bo-yu;Institute of China electronics system engineering company;The ,CAS Institute of computing technology;College of Communication Engineering,PLA University of Science and Technolgy;

【机构】 中国电子设备系统工程公司研究所； 中科院计算技术研究所； 解放军理工大学通信工程学院；

【摘要】 物联网感知层设备如传感器节点、RFID标签等由于计算能力低,资源受限的特点,节点处的信息安全也受到了严重的威胁,如何设计一个适合上述环境下的轻量级加密算法来保证在信息源头不被窃取对于信息安全具有重大的意义,本文设计出了一种新的轻量级分组加密算法Ellie,可以很好地用于以上特殊环境,该算法采用SPN网络结构,其中,线性扩散层采用4个LFSR并行迭代4轮得到输出,以达到最优扩散,同时密钥扩展设计配合扩散层也使用迭代产生子密钥,从而不仅具有超低的硬件实现门电路数(1575.28GEs),而且拥有优良的安全性,可以抵抗大多数攻击。此外,该算法同样具有良好的软件、硬件实现效率,从而更好的应用于传感器节点、RFID标签等设备中以保护信息的安全传输。更多还原

【Abstract】 As the low computing capacity and constrained resource in the Sensing Layer such as wireless sensors and RFID tags in IOT,the information security has been seriously under threat.It is of great value to design a lightweight encryption algorithm to make the information against being attacked from its source during the transmission.In this article,we have designed a new algorithm named Ellie(Extreme lightweight LFSR iteration encryption) with the network structure of SPN,in which the design of diffusion layer has adopted 4 LFSR and get the output through parallel iteration,and the sub-key come from key expansion algorithm also use the same iteration.Ellie achieves the lowest gate equivalents of hardware implementation(1575.28GEs),and it performs well in resisting most kinds of attacks.Compared to related proposals,it has the high efficiency of software and hardware implementation,which is suitable for information protection on sensor node and FRID tags in the process of information transmission.更多还原