摘要： 在改进通用模加减算法的基础上，实现一种结构优化的模加减器。采用基于字的模加减法统一硬件架构，使该设计具有良好的可扩展性，可以完成素数有限域GF(p)和二进制有限域GF(2m)上任意长度操作数的模加减法运算。该设计引入流水线结构，使其工作效率提高50%~80%，可以应用于各种高性能的椭圆曲线密码协处理器设计中。

关键词: 可伸缩, 模加减器, 双有限域

Abstract: On basis of improving the modular addition and subtraction algorithm, a modular adder and subtracter with optimized structure is presented. With the adoption of multiple-word unified hardware architecture, the proposed modular adder and subtracter can handle operands of any size in both type of finite field GF(p) and GF(2m). Its performance is 50%~80% higher compared with previous work because of the optimization of the pipeline architecture. It is suitable to the high performance elliptic curve cryptography coprocessor.

Key words: scalable, modular adder and subtracter, dual Galois Field(GF)

中图分类号: 

• TP309