可重构双基双域模乘器设计与实现  

Design and implementation for reconfigurable dual-field modular multiplier based on dual-radix

作　　者：倪乐[1] 戴紫彬[1] 杨同杰[1] 李淼[1] 陈韬[1] 

机构地区：[1]信息工程大学电子技术学院,河南郑州450004

出　　处：《电子技术应用》2012年第10期136-139,共4页Application of Electronic Technique

摘　　要：选择素数域和二进制域上基于字的Montgomery模乘算法,分析传统双域模乘器在二进制域上运算效率不高的问题,首先选择能够使两个域上模乘器延迟时间相当的字长,并对模乘器进行双域的可重构设计,使之能够同时支持素数域和二进制域上的运算。相较以往设计,采用双域双基设计的模乘器使时钟周期数平均缩短了48%。This paper selects the word-level Montgomery modular multiplication algorithm based on both prime field and binary field, and analyzes the low speed efficiency problem of traditional dual-field modular multiplier in GF （2m）. This design has com- pleted the works such as the word length with equivalent delay on the dual field, and this reconfigurable modular multiplier support- ed the operation on both GF（p） and GF（2m）. The results indicate that the proposed multiplier requires shorter clock cycle numbers shortened 44% in average than the others.

关 键 词：椭圆曲线密码算法 Montgomery模乘器 可重构 双基 双域 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]