椭圆曲线点乘算法的软硬件协同设计研究

Co-design of the Implementation of Elliptic Curve Point Multiplication

椭圆曲线密码体制是一种基于代数曲线的公开密码体制,其中曲线的点乘速度决定了该密码体制的速度。以NiosII为核心的SOPC技术的发展代表了半导体和嵌入式系统的发展方向。文章在NiosII处理器上对椭圆曲线点乘算法给予了实现,并给出与8051单片机环境实现的速度比较分析,最后使用软硬件协同设计的方式进一步提高椭圆曲线点乘速度。

Elliptic curve cryptosystems is a kind of public-key cryptosystem,and its speed lies on the speed ot poinmultiplication arithmetic.The technology of System on Programmable Chip represents the development aspect of embedded system.This paper presents the main algorithm of ECC on the NiosⅡ processor,the comparison and analysis on speed with the implementation on 8051 SCM is also provided,at last,we improve the speed of elliptic curve pointmultiplication using the technology of software and hardware co-design.