密码芯片上高效的ECC抗功耗攻击方案  

Efficiency Scheme of Resisting Power Analysis Attacks for ECC on Cryptographic Chips

作　　者：汤震[1] TANG Zhen(Huanghuai University, HeNan 463000, Chin)

机构地区：[1]黄淮学院,河南驻马店463000

出　　处：《中国电子科学研究院学报》2018年第1期97-101,共5页Journal of China Academy of Electronics and Information Technology

基　　金：河南省科技攻关计划项目(122102210510)

摘　　要：针对密码芯片在抵抗功耗攻击时存在着效率与安全两个方面的矛盾,文中通过利用奇系数梳状算法对标量进行编码,同时结合预计算方法把椭圆曲线密码标量乘法运算转化为一组小标量乘法运算,并利用基点掩码技术实施抗功耗攻击。性能分析结果表明:与传统的抗功耗攻击方案相比,给出的抗功耗攻击方案不仅可以抵抗多种功耗攻击,并且能够在存储空间和主循环运算量基本保持不变的情况下具有更高效的运算效率,在各种资源受限的应用系统中具有较好的实际应用价值。Due to exist the contradictions between efficiency and security of the So C in the process of resisting power attacks,the scalar multiplication was turned into multiple scalar multiplication by coding the scalar with odd-only comb method. And then a scheme based on Odd-only Comb Method was presented by the method of the pre-computation table and basic point masking algorithm. Performance analysis result shows that： compared with the traditional scheme of resisting power attack,the proposed resisting power attack scheme can not only resist various power attacks,but also has more efficient operation efficiency which the storage space and the main loop operation is basically unchanged. So the scheme could has better practical value in a variety application systems of limited resource.

关 键 词：密码芯片 椭圆曲线密码 功耗攻击 奇系数梳状算法 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]