而mpz_probab_prime_p用到了 Miller-Rabin 算法。GMP有两个素数函数 mpz_probab_prime_p 和 mpz_nextprime, 代码都在mpz目录下:pprime_p.c millerrabin.c nextprime.c 简介:-- Function: int mpz_probab_prime_p (mpz_t N, int REPS)Determine whether N is prime. Return 2 if N is ...
mpz_pow_ui(tmp,tmp,l1-1); seed=rand()%(1<<31)+100; //seed在定义时,生成随机数。用rand后seed是定值 gmp_randstate_t state; gmp_randinit_default(state); gmp_randseed_ui(state,seed++); mpz_urandomb(p,state,l1-1); mpz_add(p,p,tmp); mpz_nextprime(p,p); l1 = size_of(p)...
这里调用了 GMP 库函数 mpz_nextprime(mpz_t rop, const mpz_t op) 即将rot 设置为 op 的下一个素数. 接下来, 计算公共模数 N=P*Q, 欧拉函数 φ(N)=(P - 1) * (Q - 1). 然后呢, 计算公钥 E, 这是一个与 φ(N) 互质的素数, 且 $ E \in (1,\ φ(N))$. 最后, 计算私钥 D, 满...
示例5: mpz_nextprime ▲点赞 1▼ // This function is Obsolete 17/8/2009voidmpz_nextprime(mpz_ptr x,mpz_srcptr y){gmp_randstate_trnd; gmp_randinit_default(rnd); mpz_next_likely_prime(x,y,rnd);gmp_randclear(rnd);return;} 开发者ID:coapp-packages,项目名称:mpir,代码行数:8,代码来源...
{ mpz_urandomb(bign,rstate,16);//0-2^16的随机数 rep=mpz_probab_prime_p(bign,10); } //gmp_printf("%Zd\n", bign); int i; srand((unsigned)time(NULL)); i = rand() % 5; mpz_nextprime(bign1, bign); if(i){ newprime(bign1,bign1); i--; } gmp_printf("%Zd\n", ...
#include<stdio.h>#include<stdlib.h>#include<string.h>#include<gmp.h>intmain(){mpz_t a,b;mpz_init(a);mpz_init(b);mpz_init_set_str(a,"12345678900987654321",10);mpz_nextprime(b,a);gmp_printf("b = %Zd\n",b);mpz_clear(a);mpz_clear(b);return0;} ...
1. Signed integer arithmetic functions (mpz). These functions are intended to be easy to use, with their regular interface. The associated type is `mpz_t'. 2. Rational arithmetic functions (mpq). For now, just a small set of functions necessary for basic rational arithmetics. The ...
make[4]: Entering directory `/media/sf_Download/gmp-4.3.2/tests/mpz*gcc -std=gnu99 -DHAVE_CONFIG_H -I. -I. -I../.. -I../.. -I../../tests -m32 -O2 -pedantic -fomit-frame-pointer -mtune=pentiumpro -march=pentiumpro -c t-addsub.c/bin/sh ../../libtool --mode=link ...
distclean-* | maintainer-clean-*) list='mpn mpz mpq mpf printf rand cxx' ;; \ *) list='mpn mpz mpq mpf printf rand cxx' ;; \ esac; \ for subdir in $list; do \ echo "Making $target in $subdir"; \ if test "$subdir" = "."; then \ ...
void mpz_nextprime(mpz_t rop, mpz_t op) 說明:產生一個比op還大但最接近op的大質數。 vid mpz_gcd(mpz_t rop, mpz_t op1, mpz_t op2) 說明:取op1與op2的最大公因數。 d.隨機變數函式: void mpz_urandomb(mpz_t rop, gmp_randstate_t state, unsigned long int n) 說明:亂數的範圍在0到...