面向侧信道防御的安全除法器设计  

Design of Secure Divider for Side Channel Defense

作　　者：马兵文 燕雪松 刘豪 刘朋远 易江芳 MA Bingwen;YAN Xuesong;LIU Hao;LIU Pengyuan;YI Jiangfang(School of Electronics Engineering and Computer Science,Peking University,Beijing 100871;Beijing Smart-Chip Microelectronics Technology Co,Ltd,Beijing 100192;STAET GRID Ningxia Marketing Service Center(Metrology Center),Yinchuan 750001)

机构地区：[1]北京大学信息科学技术学院系统结构研究所,北京100871 [2]北京智芯微电子科技有限公司,北京100192 [3]国网宁夏电力有限公司营销服务中心(国网宁夏电力有限公司计量中心),银川750001

出　　处：《北京大学学报（自然科学版）》2022年第4期597-601,共5页Acta Scientiarum Naturalium Universitatis Pekinensis

基　　金：国家电网总部科技项目(5700-201941313A-0-0-00)资助。

摘　　要：在利用运算部件的侧信道计时攻击及防御方法基础上,针对密码系统中常用的除法部件,基于固定延迟和可变延迟除法算法,进行面向侧信道防御的安全除法器设计。该设计兼顾性能和安全,适用于不同需求的工作环境。实验结果证明了该方法的有效性,尤其适合面向IoT应用的低功耗嵌入式处理器使用。According to the common methods of side channel timing attack and defense using arithmetic unit,based on the division algorithms of fixed delay and variable delay,a secure divider was designed.The design considered both high performance and high security.It was suitable for different working environments.Experimental results showed that the proposed divider was effective,especially for low power embedded microprocessors for IoT applications.

关 键 词：微体系结构 侧信道 计时攻击 除法器 

分 类 号：TP332.22[自动化与计算机技术—计算机系统结构]