针对AES差分故障分析攻击的改进算法  

The Improved Algorithm Regarding Differential Fault Analysis against AES

作　　者：沙沛东[1] 朱志祥[1] 

机构地区：[1]西安邮电大学通信技术研究所,西安710061

出　　处：《西安文理学院学报（自然科学版）》2013年第4期42-45,共4页Journal of Xi’an University(Natural Science Edition)

基　　金：工业和信息化部通信软科学研究计划基金资助项目(2012R38);西安邮电大学青年教师科研基金面上资助项目(ZL2012-22)

摘　　要：针对于高级加密标准(AES)算法的攻击方法,提出了一种改进的差分故障分析攻击方法.该算法通过对加密过程进行故障诱导,正向推导原始密文和导入故障后的密文之间的关系,实现密钥的恢复,减少了暴力破解的复杂度.与传统针对AES-128的差分故障分析攻击算法相比,在算法方面具有更好的可扩展性,无需改动推导过程,适当调整参数即可实现对AES-192和AES-256的攻击.Based on the Advanced Encryption Standard （AES} cipher algorithm, this essay proposes an improved differential fault analysis attack. This algorithm induced the faults in en cryption to derive the relationship between the original cipher text and the cipher text after the importation of the fault to recover the secret key and reduce the complexity of a brute force at tack. Compared with the traditional differential fault analysis （ DFA ） attack algorithm against AES - 128, this method has better scalability and can realize the attack against AES - 192 and AES- 256 after appropriate adjustments to the parameters of the soecific derivation process.

关 键 词：差分故障分析 高级加密标准算法 区域推导 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]