电子科技大学学报2013，Vol.42Issue(3)：344-349,6.DOI:10.3969/j.issn.1001-0548.2013.03.005
PRESENT密码算法的差分电磁攻击研究
Research on Different Electromagnetic Attack on PRESENT Algorithm
摘要
Abstract
In this paper,the PRESENT algorithm is analyzed by the improved electromagnetic attack.The sensitive areas are found through magnetic coil over cipher chip on physical experiment platform.Differential electromagnetic analysis is implemented on the output of S-box and that of XOR.The results of analysis are mutually supported and complemented.In this way,64 bits of the 80 bit original key can be recovered efficiently.The other 16 bits can be recovered through exhaustive attack and then the 80-bit original key could be recovered.In the analysis process,the peak value of the difference between mean values leaks the information of sub-key operating order in cipher chip.Furthermore,a flaw in the original PRESENT algorithm description is pointed out and corrected.关键词
数据安全/差分电磁攻击/PRESENT/边信道Key words
data security/ different electromagnetic attack/ PRESENT/ side-channel分类
信息技术与安全科学引用本文复制引用
孙春辉,李晖,杨旸,朱辉..PRESENT密码算法的差分电磁攻击研究[J].电子科技大学学报,2013,42(3):344-349,6.基金项目
国家自然科学基金(61102056,61003300) （61102056,61003300）
中央高校基本科研业务费(K50510010030,K50510010012) （K50510010030,K50510010012）
陕西省自然科学基础研究计划(2011JQ8042) （2011JQ8042）
