diff options
Diffstat (limited to 'crypto/bn/exp.c')
-rw-r--r-- | crypto/bn/exp.c | 105 |
1 files changed, 52 insertions, 53 deletions
diff --git a/crypto/bn/exp.c b/crypto/bn/exp.c index 4865b0ef74..fbce28c5be 100644 --- a/crypto/bn/exp.c +++ b/crypto/bn/exp.c @@ -4,59 +4,58 @@ #include <openssl/tmdiff.h> #include "bn_lcl.h" -#define SIZE 256 -#define NUM (8*8*8) -#define MOD (8*8*8*8*8) +#define SIZE 256 +#define NUM (8*8*8) +#define MOD (8*8*8*8*8) -main(argc,argv) +main(argc, argv) int argc; char *argv[]; - { - BN_CTX ctx; - BIGNUM a,b,c,r,rr,t,l; - int j,i,size=SIZE,num=NUM,mod=MOD; - char *start,*end; - BN_MONT_CTX mont; - double d,md; - - BN_MONT_CTX_init(&mont); - BN_CTX_init(&ctx); - BN_init(&a); - BN_init(&b); - BN_init(&c); - BN_init(&r); - - start=ms_time_new(); - end=ms_time_new(); - while (size <= 1024*8) - { - BN_rand(&a,size,0,0); - BN_rand(&b,size,1,0); - BN_rand(&c,size,0,1); - - BN_mod(&a,&a,&c,&ctx); - - ms_time_get(start); - for (i=0; i<10; i++) - BN_MONT_CTX_set(&mont,&c,&ctx); - ms_time_get(end); - md=ms_time_diff(start,end); - - ms_time_get(start); - for (i=0; i<num; i++) - { - /* bn_mull(&r,&a,&b,&ctx); */ - /* BN_sqr(&r,&a,&ctx); */ - BN_mod_exp_mont(&r,&a,&b,&c,&ctx,&mont); - } - ms_time_get(end); - d=ms_time_diff(start,end)/* *50/33 */; - printf("%5d bit:%6.2f %6d %6.4f %4d m_set(%5.4f)\n",size, - d,num,d/num,(int)((d/num)*mod),md/10.0); - num/=8; - mod/=8; - if (num <= 0) num=1; - size*=2; - } - - } +{ + BN_CTX ctx; + BIGNUM a, b, c, r, rr, t, l; + int j, i, size = SIZE, num = NUM, mod = MOD; + char *start, *end; + BN_MONT_CTX mont; + double d, md; + + BN_MONT_CTX_init(&mont); + BN_CTX_init(&ctx); + BN_init(&a); + BN_init(&b); + BN_init(&c); + BN_init(&r); + + start = ms_time_new(); + end = ms_time_new(); + while (size <= 1024 * 8) { + BN_rand(&a, size, 0, 0); + BN_rand(&b, size, 1, 0); + BN_rand(&c, size, 0, 1); + + BN_mod(&a, &a, &c, &ctx); + + ms_time_get(start); + for (i = 0; i < 10; i++) + BN_MONT_CTX_set(&mont, &c, &ctx); + ms_time_get(end); + md = ms_time_diff(start, end); + + ms_time_get(start); + for (i = 0; i < num; i++) { + /* bn_mull(&r,&a,&b,&ctx); */ + /* BN_sqr(&r,&a,&ctx); */ + BN_mod_exp_mont(&r, &a, &b, &c, &ctx, &mont); + } + ms_time_get(end); + d = ms_time_diff(start, end) /* *50/33 */ ; + printf("%5d bit:%6.2f %6d %6.4f %4d m_set(%5.4f)\n", size, + d, num, d / num, (int)((d / num) * mod), md / 10.0); + num /= 8; + mod /= 8; + if (num <= 0) + num = 1; + size *= 2; + } + +} |