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Add tests for mp_jacobi()

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This commit is contained in:
Steffen Jaeckel 2015-11-29 22:43:52 +01:00
parent 34e6b723ff
commit 7176a8777a
1 changed files with 40 additions and 1 deletions
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41
demo/demo.c
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@ -12,7 +12,7 @@
* Configuration
*/
#ifndef LTM_DEMO_TEST_VS_MTEST
#define LTM_DEMO_TEST_VS_MTEST 1
#define LTM_DEMO_TEST_VS_MTEST 0
#endif
#ifndef LTM_DEMO_TEST_REDUCE_2K_L
@ -114,6 +114,16 @@ struct mp_sqrtmod_prime_st sqrtmod_prime[] = {
{ 7, 9, 4 },
{ 113, 2, 62 }
};
struct mp_jacobi_st {
unsigned long n;
int c[16];
};
struct mp_jacobi_st jacobi[] = {
{ 3, { 1, -1, 0, 1, -1, 0, 1, -1, 0, 1, -1, 0, 1, -1, 0, 1 } },
{ 5, { 0, 1, -1, -1, 1, 0, 1, -1, -1, 1, 0, 1, -1, -1, 1, 0 } },
{ 7, { 1, -1, 1, -1, -1, 0, 1, 1, -1, 1, -1, -1, 0, 1, 1, -1 } },
{ 9, { -1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1 } },
};
char cmd[4096], buf[4096];
int main(void)
@ -186,6 +196,35 @@ int main(void)
mp_add_d(&a, 1, &b);
mp_add_d(&a, 6, &b);
mp_set_int(&a, 0);
mp_set_int(&b, 1);
if ((ix = mp_jacobi(&a, &b, &i)) != MP_OKAY) {
printf("Failed executing mp_jacobi(0 | 1) %s.\n", mp_error_to_string(ix));
return EXIT_FAILURE;
}
if (i != 1) {
printf("Failed trivial mp_jacobi(0 | 1) %d != 1\n", i);
return EXIT_FAILURE;
}
for (cnt = 0; cnt < (int)(sizeof(jacobi)/sizeof(jacobi[0])); ++cnt) {
mp_set_int(&b, jacobi[cnt].n);
/* only test positive values of a */
// for (n = -5; n <= 10; ++n) {
for (n = 0; n <= 10; ++n) {
mp_set_int(&a, abs(n));
if (n < 0) mp_neg(&a, &a);
if ((ix = mp_jacobi(&a, &b, &i)) != MP_OKAY) {
printf("Failed executing mp_jacobi(%d | %lu) %s.\n", n, jacobi[cnt].n, mp_error_to_string(ix));
return EXIT_FAILURE;
}
if (i != jacobi[cnt].c[n + 5]) {
printf("Failed trivial mp_jacobi(%d | %lu) %d != %d\n", n, jacobi[cnt].n, i, jacobi[cnt].c[n + 5]);
return EXIT_FAILURE;
}
}
}
// test montgomery
printf("Testing: montgomery...\n");
for (i = 1; i <= 10; i++) {