diff options
author | Parménides GV <parmegv@sdf.org> | 2014-04-09 16:03:55 +0200 |
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committer | Parménides GV <parmegv@sdf.org> | 2014-04-09 16:07:34 +0200 |
commit | 1684c8f398922065a97e7da4dac4ac6a33cc5218 (patch) | |
tree | 76a4b11ae0d7b217c088f3c2b8fc7e69a7b8ae0d /app/openssl/crypto/bn/exp.c | |
parent | b9a2b085a8f508cd09e2639c70be845c992c4a3e (diff) |
Back to the standard "app" module.
This return to "app" instead of "bitmask_android" is due to this reading: https://developer.android.com/sdk/installing/studio-build.html#projectStructure
I'll have to tweak the final apk name in build.gradle.
Diffstat (limited to 'app/openssl/crypto/bn/exp.c')
-rw-r--r-- | app/openssl/crypto/bn/exp.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/app/openssl/crypto/bn/exp.c b/app/openssl/crypto/bn/exp.c new file mode 100644 index 00000000..4865b0ef --- /dev/null +++ b/app/openssl/crypto/bn/exp.c @@ -0,0 +1,62 @@ +/* unused */ + +#include <stdio.h> +#include <openssl/tmdiff.h> +#include "bn_lcl.h" + +#define SIZE 256 +#define NUM (8*8*8) +#define MOD (8*8*8*8*8) + +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; + } + + } |