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authorSimon L. B. Nielsen <simon@FreeBSD.org>2008-08-23 10:51:00 +0000
committerSimon L. B. Nielsen <simon@FreeBSD.org>2008-08-23 10:51:00 +0000
commitc4a78426bef17a0a7c81195c2b2399e7441f14ad (patch)
tree596c39f00d5968b1519e8cd7f0546412b14c20f0 /crypto/bn/exp.c
parenta0ddfe4e7233d81e88a86217b7653708db2720fa (diff)
downloadsrc-c4a78426bef17a0a7c81195c2b2399e7441f14ad.tar.gz
src-c4a78426bef17a0a7c81195c2b2399e7441f14ad.zip
Flatten OpenSSL vendor tree.
Notes
Notes: svn path=/vendor-crypto/openssl/dist/; revision=182044
Diffstat (limited to 'crypto/bn/exp.c')
-rw-r--r--crypto/bn/exp.c62
1 files changed, 62 insertions, 0 deletions
diff --git a/crypto/bn/exp.c b/crypto/bn/exp.c
new file mode 100644
index 000000000000..4865b0ef742b
--- /dev/null
+++ b/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;
+ }
+
+ }