AES算法的轮内融合优化  

Inner Fusion Optimization for AES Algorithm

作　　者：陈志达[1] 张金林[2] 

机构地区：[1]空军预警学院研究生管理大队,武汉430019 [2]空军预警学院三系,武汉430019

出　　处：《空军雷达学院学报》2012年第3期215-217,共3页Journal of Air Force Radar Academy

摘　　要：为减少高级加密标准(AES)算法的硬件消耗,提出了一种AES加解密算法的轮内融合结构.在降域求逆元的基础上,该结构选择性地将轮函数内部的线性模块进行融合,减少了线性模块间的重复计算,从而有效地减少了密钥处理模块的计算量及硬件消耗,使得AES算法实现进一步优化.通过统计数据进行对比分析,验证了该结构的优化性,并分别选出了最优的加密、解密所使用的换域矩阵.To reduce the areas of hardware used for the implementation of advanced encryption standard （AES）, this paper presents a new inner fusion architecture for AES. Based on finding the inverse in composite field, this architecture selectively puts the linear modules inside the round function into fusion and reduces the repetitive computation between linear modules, thus reducing effectively computational quantity of key processing module and hardware consumption and making AES algorithm have further optimization. By using the statistical data to have a comparative analysis it is verified that this proposed architecture is of the optimal performance, and selects respectively the change domain matrix used for the optimal encryption/decryption.

关 键 词：AES算法 线性模块 轮内融合技术 降域 加/解密算法 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]