摘要
为探究电磁信号泄漏的秘密信息,将多比特差分电磁分析(M-DEMA)应用于密码芯片的电磁旁路攻击。在分析CMOS电路直接电磁辐射机理的基础上,设计并搭建了DES微控制器(AT89C52)密码系统的近场电磁辐射信号采集与分析平台。在详细阐释M-DEMA攻击方法的同时,完成了针对该密码系统的攻击实验及实验效果分析,实验结果表明该方法是有效的,与传统DEMA方法相比,该方法能用更少的样本成功恢复DES密码芯片的密钥,并能提高攻击成功率。
In order to research for secret information leakage by electromagnetic signal, use multiple-bit differential electromagnetic analysis （M-DEMA） is applied to side channel attacks （SCA） in code chip. Based on analysis the principle of direct electromagnetic radiations for complementary metal-oxide-semiconductor （CMOS） circuit. A near-field electromagnetism radiations signals acquisition and analysis platform of DES microcontroller （AT89C52） code system is designed and constructed. Introduce M-DEMA attack method in detail, realize the attack test and test results analysis. The experimental results show that the method is effective, compared with conventional DEMA method, this method can use less traces successfully extract the secret key of DES cryptographic device, and can improve the success rate of attacks.
出处
《兵工自动化》
2013年第2期45-47,54,共4页
Ordnance Industry Automation
基金
国家自然科学基金(60940019)
河北省自然科学基金(F2012506008)资助
