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Compare with BN_mod_exp_simple, too.

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This commit is contained in:
Ulf Möller 1999-04-29 16:07:56 +00:00
parent d575d2924c
commit a79b03ce6f
1 changed files with 24 additions and 9 deletions
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31
crypto/bn/exptest.c
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@ -75,7 +75,7 @@ int main(int argc, char *argv[])
BIO *out=NULL; BIO *out=NULL;
int i,ret; int i,ret;
unsigned char c; unsigned char c;
BIGNUM *r_mont,*r_recp,*a,*b,*m; BIGNUM *r_mont,*r_recp,*r_simple,*a,*b,*m;
ERR_load_BN_strings(); ERR_load_BN_strings();
@ -83,6 +83,7 @@ int main(int argc, char *argv[])
if (ctx == NULL) exit(1); if (ctx == NULL) exit(1);
r_mont=BN_new(); r_mont=BN_new();
r_recp=BN_new(); r_recp=BN_new();
r_simple=BN_new();
a=BN_new(); a=BN_new();
b=BN_new(); b=BN_new();
m=BN_new(); m=BN_new();
@ -128,22 +129,36 @@ int main(int argc, char *argv[])
exit(1); exit(1);
} }
if (BN_cmp(r_mont,r_recp) != 0) ret=BN_mod_exp_simple(r_simple,a,b,m,ctx);
if (ret <= 0)
{ {
printf("\nmont and recp results differ\n"); printf("BN_mod_exp_simple() problems\n");
ERR_print_errors(out);
exit(1);
}
if (BN_cmp(r_simple, r_mont) == 0
&& BN_cmp(r_simple,r_recp) == 0)
{
printf(".");
fflush(stdout);
}
else
{
if (BN_cmp(r_simple,r_mont) != 0)
printf("\nsimple and mont results differ\n");
if (BN_cmp(r_simple,r_recp) != 0)
printf("\nsimple and recp results differ\n");
printf("a (%3d) = ",BN_num_bits(a)); BN_print(out,a); printf("a (%3d) = ",BN_num_bits(a)); BN_print(out,a);
printf("\nb (%3d) = ",BN_num_bits(b)); BN_print(out,b); printf("\nb (%3d) = ",BN_num_bits(b)); BN_print(out,b);
printf("\nm (%3d) = ",BN_num_bits(m)); BN_print(out,m); printf("\nm (%3d) = ",BN_num_bits(m)); BN_print(out,m);
printf("\nsimple ="); BN_print(out,r_simple);
printf("\nrecp ="); BN_print(out,r_recp); printf("\nrecp ="); BN_print(out,r_recp);
printf("\nmont ="); BN_print(out,r_mont); printf("\nmont ="); BN_print(out,r_mont);
printf("\n"); printf("\n");
exit(1); exit(1);
} }
else
{
printf(".");
fflush(stdout);
}
} }
CRYPTO_mem_leaks(out); CRYPTO_mem_leaks(out);
printf(" done\n"); printf(" done\n");