面向侧信道碰撞攻击的“明文对”选择策略  

Selection strategy of plaintext pairs for side-channel collision attack

作　　者：严迎建[1] 王忠[1] 郭建飞[1] 

机构地区：[1]信息工程大学,河南郑州450000

出　　处：《计算机工程与设计》2016年第10期2622-2626,共5页Computer Engineering and Design

摘　　要：针对侧信道碰撞攻击时"明文对"的选择问题进行研究,在对侧信道碰撞攻击一般步骤总结归纳的基础上,利用不同汉明重量明文在发生碰撞的明文中出现概率不同的事实,提出一种基于汉明重量的"明文对"选择策略,利用明文汉明重量的分布特点对"明文对"进行选择。利用基于最小一乘法区分模型的碰撞检测方法以及基于电磁辐射信息的碰撞攻击验证方法,以DES(数据加密标准)算法为例进行实测攻击验证,实验结果表明,选择的策略可有效提高碰撞检测成功率。The selection strategy of plaintext pairs for side-channel collision attack was researched,and a selection strategy of plaintext pairs on hamming weight was put forward based on the summarization of side-channel collision steps and by which different plaintext has different probability in collision plaintexts.Plaintext pairs were selected according to the characteristics of distribution of hamming weight.A collision detection method based on the least absolute deviations differentiation model and verification method of collision attack based on electromagnetic radiation information were used,some experiment on DES were carried out.Experimental results show that the selection strategy can effectively advance the success rate of collision detection.

关 键 词：侧信道碰撞攻击 “明文对” DES 最小一乘法 碰撞检测成功率 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]