低功耗RFID的公钥密码系统实现  

Low-Power Public Key Cryptosystem Implementation for RFID

作　　者：陈剑[1] 张春[1] 陈虹[1] 

机构地区：[1]清华大学微电子学研究所,北京100084

出　　处：《半导体技术》2009年第9期890-894,共5页Semiconductor Technology

基　　金：国家高技术研究发展计划资助项目(863计划)(2006AA04A109)

摘　　要：安全性是RFID系统继续扩大应用的一个重要障碍。为提高RFID系统的安全性,给出了一种基于公钥密码体制NTRU的实现。并针对RFID标签芯片成本低、计算能力弱、获取能量少的特点,在设计中面向计算时间、小面积和低功耗优化。实现中采用了门控时钟,预计算等措施,使最终电路总计占用2837个等效逻辑门,在时钟频率为500kHz时,电路的功耗为13.68μW。最后给出了与传统密码体系的对比,分析了采取措施的效用。Security issues are the main obstacle of massive usage of RFID system. To elevate the security level, a novel implementation of public key cryptosystem NTRU was given. Considering the weak computing power, low cost, and limited power were gained from the air interface. Special attention was paid to minimize the total computing time, area and power dissipation, by means of clock gating, pre-computing, etc. The resulted circuit consists of 2 837 equivalent logic gates, consumes 13.68 μW power at 500 kHz clock frequency. A comparison was provided based on the techniques used in this implementation.

关 键 词：射频识别 公钥密码体制 低功耗设计 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]