摘要
差分电磁攻击是一种针对密码算法的侧信道攻击方法.根据CMOS器件工作时产生发射辐射的原理,建立了针对DES加密算法的电磁侧信道攻击平台;对差分攻击方法和电磁辐射分析进行了说明;结合虚拟仪器技术,采用磁场探头对单片机的电磁辐射进行测量,获得了较好的信号;利用针对多CPU的优化算法,实现了在1000组样本量下快速破解DES加密算法,整个实验过程在半小时内完成.
DEMA is a side channel attacks which used to access the key of DES efficiently. According to the electromagnetic leakage principle of CMOS chips, a platform of DEMA for DES has been constructed; differential attacks and the principle of radiated electromagnetic analysis was introduced. Based on virtual instrument technology, the radiated electromagnetic was measured by magnetic probe and supplied good signal. A electrornagnetic attack with 1000 samples has been realized with optimization algorithm for multi-core computer. All progress only took half an hour.
出处
《微电子学与计算机》
CSCD
北大核心
2009年第12期34-37,共4页
Microelectronics & Computer
基金
国家"八六三"计划项目(2007AA01Z454)