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数字签名中大整数运算的DSP实现算法设计
The Algorithm Design of Large Integer Operation of Digital Signature with DSP
【摘要】 利用DSP的特点,对大整数的表示进行了全新的定义,由此设计了大整数的基本运算算法———无符号数加法、无符号数减法、无符号数乘法、模P运算、无符号数比较大小、W=(X-Y)modP的算法、模指数运算W=(XA)modP七种运算算法,为用DSP实现数字签名打下了基础。
【Abstract】 In this paper,the expression of larg e integer is defined by new method based on DSP.Therefore,seven kinds of large integer operati on algorithms are designed---unsigned large integer addition,unsigned large integer subtraction,unsigned larg e integer multiplication,mod P operation,unsigned large integer c omparison,W=(X-Y )mod P operation,W=(X A)mod P operation.The researches laid the f oundation for the DSP imple-mentation of Digital Signature.
- 【文献出处】 通信技术 ,Communications Technology , 编辑部邮箱 ,2001年09期
- 【分类号】TP393.08
- 【下载频次】61