DES密码芯片模板攻击技术研究  

RESEARCH ON TEMPLATE ATTACK TECHNIQUES AGAINST DES CRYPTOGRAPHIC CHIP

作　　者：李佩之[1] 严迎建[1] 段二朋[1] 

机构地区：[1]解放军信息工程大学电子技术学院,河南郑州450004

出　　处：《计算机应用与软件》2013年第4期310-312,333,共4页Computer Applications and Software

摘　　要：在实际的模板攻击中,所构建的模板中的协方差矩阵可能会出现数值问题。通过研究模板攻击技术,对构建模板的方法进行改进,并构建电磁泄漏信息采集平台,分析密码芯片的电磁泄漏信息,对基于现场可编程门阵列(FPGA)实现的数据加密标准(DES)密码算法进行模板攻击。攻击结果表明,改进后的方法能够有效避免协方差矩阵的数值问题,同时该采集平台能够获取密码芯片工作时的电磁泄漏信息,验证了模板攻击方法,成功获得了正确密钥。In actual template attacks,the covariance matrix in the templates built may come accross numerical problems.By studying the template attack techniques,we made the improvement on template building method,and built the electromagnetic leakage information collection platform,as well as analysed the electromagnetic leakage information of the password-chip,then launched the attacks on the data encryption standard（DES） cryptographic algorithm implemented based on field programmable gate array（FPGA）.The attack results show that the improved method can effectively avoid the numerical problems of covariance matrix;meanwhile,the collection platform is able to obtain the electromagnetic leakage information of password chip when it works,so the template attack methods are verified,and the correct key is successfully obtained.

关 键 词：模版攻击 电磁信息泄漏 数据加密标准 现场可编程门阵列 

分 类 号：TP301[自动化与计算机技术—计算机系统结构]