对称密码中有限域乘法运算的可重构设计  

Reconfigurable design of Galois field multiplication in symmetric cryptography

作　　者：苏阳[1] SU Yang(Department of Electronic Technology, Engineering College of the Armed Police Force, Xi＇an 710086, Shaanxi, China)

机构地区：[1]武警工程大学电子技术系,陕西西安710086

出　　处：《山东大学学报（理学版）》2017年第6期76-83,91,共9页Journal of Shandong University(Natural Science)

基　　金：国家自然科学基金资助项目(61572521;61309008);陕西省青年科技基金(2013JQ8013)

摘　　要：有限域X乘法运算是对称密码算法中的基本运算和重要模块,因操作复杂且计算时间长,其实现性能在很大程度上制约着对称密码算法的运算速度。结合对称密码算法中的有限域X乘法操作特征,设计了面向RISC体系结构和VLIW体系结构的X乘法可重构单元架构,提出了对应的有限域X乘法专用指令及其扩展指令,同时进行了功能验证和性能评估。结果表明,有限域X乘法可重构架构及其专用指令,在保证较好灵活性的同时提供了较高的执行效率,具有较高的实用价值。The Galois field X multiplication is a basic and important module in symmetric cryptography,but the processing speed is restricted by the realization performance for the complex operation and long calculation time. Combined with the operation characteristics of Galois field X multiplication in symmetric cryptography,the reconfigurable architecture of X multiplication of RISC and VLIW processor structure was designed,and proposed the corresponding dedicated instructions and expanding instructions,at last,the function verification and performance evaluation was given. The result shows that the reconfigurable structure and dedicated instructions of Galois field X multiplication can provide high processing speed with high flexibility and practicality.

关 键 词：对称密码 有限域X乘法 可重构设计 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]