ECC处理器时间随机化抗DPA攻击设计  

The design of anti-DPA attack with time randomization for ECC processor

作　　者：陈琳[1] 严迎建[1] 周超[1] 李默然[1] 

机构地区：[1]解放军信息工程大学,河南郑州450000

出　　处：《电子技术应用》2015年第10期103-106,共4页Application of Electronic Technique

摘　　要：为了提高ECC密码处理器的抗差分能量攻击能力,提出了基于软中断的时间随机化抗差分能量攻击方法。首先分析了时间随机化抗DPA攻击的原理;然后结合ECC处理器的运算特征,设计了基于软中断的时间随机化电路;最后搭建了功耗仿真平台。对设计进行仿真分析,结果表明,本设计能够满足抵抗DPA攻击,同时时间随机化部分的功耗特性在能量迹上不易被区分剔除,达到了处理器抗DPA攻击的设计要求。In order to improve the resistance to differential power attack capability of the ECC cryptographic processor, this paper presents the method of time randomization based on soft interrupt resistance to DPA attack. First the principle of the time randomization against DPA attack is analyzed; and then combined with the operational characteristics of ECC processor, this paper designs a time randomized circuit based on soft interrupt request; finally, power simulation platform is built and the design result is simulated. Simulation results show that the design can resist the DPA attack, and power characteristics of time randomization part in energy trace are not easy to be culled. The design achieves requirements of against DPA attack for ECC cryptographic processor.

关 键 词：ECC 密码处理器 时间随机化 差分能量攻击 软中断 

分 类 号：TP302.2[自动化与计算机技术—计算机系统结构]