AuroraMiddleware/libtommath
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fe4bdf1236
libtommath/demo/test.c
Daniel Mendler 1fc7d20dab
opponent/test.c: move ndraw to main.c
2019-03-04 01:56:06 +01:00

1268 lines
32 KiB
C
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#include "shared.h"
static int test_trivial_stuff(void) {
mp_int a, b, c, d;
if (mp_init_multi(&a, &b, &c, &d, NULL)!= MP_OKAY) {
return EXIT_FAILURE;
}
/* a: 0->5 */
mp_set_int(&a, 5);
/* a: 5-> b: -5 */
mp_neg(&a, &b);
if (mp_cmp(&a, &b) != MP_GT) {
goto LBL_ERR;
}
if (mp_cmp(&b, &a) != MP_LT) {
goto LBL_ERR;
}
/* a: 5-> a: -5 */
mp_neg(&a, &a);
if (mp_cmp(&b, &a) != MP_EQ) {
goto LBL_ERR;
}
/* a: -5-> b: 5 */
mp_abs(&a, &b);
if (mp_isneg(&b) != MP_NO) {
goto LBL_ERR;
}
/* a: -5-> b: -4 */
mp_add_d(&a, 1uL, &b);
if (mp_isneg(&b) != MP_YES) {
goto LBL_ERR;
}
if (mp_get_int(&b) != 4) {
goto LBL_ERR;
}
/* a: -5-> b: 1 */
mp_add_d(&a, 6uL, &b);
if (mp_get_int(&b) != 1) {
goto LBL_ERR;
}
/* a: -5-> a: 1 */
mp_add_d(&a, 6uL, &a);
if (mp_get_int(&a) != 1) {
goto LBL_ERR;
}
mp_zero(&a);
/* a: 0-> a: 6 */
mp_add_d(&a, 6uL, &a);
if (mp_get_int(&a) != 6) {
goto LBL_ERR;
}
mp_set_int(&a, 42);
mp_set_int(&b, 1);
mp_neg(&b, &b);
mp_set_int(&c, 1);
mp_exptmod(&a, &b, &c, &d);
mp_set_int(&c, 7);
mp_exptmod(&a, &b, &c, &d);
mp_clear_multi(&a, &b, &c, &d, NULL);
return EXIT_SUCCESS;
LBL_ERR:
mp_clear_multi(&a, &b, &c, &d, NULL);
return EXIT_FAILURE;
}
static int test_mp_jacobi(void) {
struct mp_jacobi_st {
unsigned long n;
int c[16];
};
static 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 } },
};
int i, n, err, should, cnt;
mp_int a, b;
if (mp_init_multi(&a, &b, NULL)!= MP_OKAY) {
return EXIT_FAILURE;
}
mp_set_int(&a, 0);
mp_set_int(&b, 1);
if ((err = mp_jacobi(&a, &b, &i)) != MP_OKAY) {
printf("Failed executing mp_jacobi(0 | 1) %s.\n", mp_error_to_string(err));
goto LBL_ERR;
}
if (i != 1) {
printf("Failed trivial mp_jacobi(0 | 1) %d != 1\n", i);
goto LBL_ERR;
}
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) {
mp_set_int(&a, abs(n));
should = MP_OKAY;
if (n < 0) {
mp_neg(&a, &a);
/* Until #44 is fixed the negative a's must fail */
should = MP_VAL;
}
if ((err = mp_jacobi(&a, &b, &i)) != should) {
printf("Failed executing mp_jacobi(%d | %lu) %s.\n", n, jacobi[cnt].n, mp_error_to_string(err));
goto LBL_ERR;
}
if ((err == MP_OKAY) && (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]);
goto LBL_ERR;
}
}
}
mp_clear_multi(&a, &b, NULL);
return EXIT_SUCCESS;
LBL_ERR:
mp_clear_multi(&a, &b, NULL);
return EXIT_FAILURE;
}
static int test_mp_kronecker(void) {
struct mp_kronecker_st {
long n;
int c[21];
};
static struct mp_kronecker_st kronecker[] = {
/*-10, -9, -8, -7,-6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10*/
{ -10, { 0, -1, 0, -1, 0, 0, 0, 1, 0, -1, 0, 1, 0, -1, 0, 0, 0, 1, 0, 1, 0 } },
{ -9, { -1, 0, -1, 1, 0, -1, -1, 0, -1, -1, 0, 1, 1, 0, 1, 1, 0, -1, 1, 0, 1 } },
{ -8, { 0, -1, 0, 1, 0, 1, 0, -1, 0, -1, 0, 1, 0, 1, 0, -1, 0, -1, 0, 1, 0 } },
{ -7, { 1, -1, -1, 0, 1, 1, -1, 1, -1, -1, 0, 1, 1, -1, 1, -1, -1, 0, 1, 1, -1 } },
{ -6, { 0, 0, 0, -1, 0, -1, 0, 0, 0, -1, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0 } },
{ -5, { 0, -1, 1, -1, 1, 0, -1, -1, 1, -1, 0, 1, -1, 1, 1, 0, -1, 1, -1, 1, 0 } },
{ -4, { 0, -1, 0, 1, 0, -1, 0, 1, 0, -1, 0, 1, 0, -1, 0, 1, 0, -1, 0, 1, 0 } },
{ -3, { -1, 0, 1, -1, 0, 1, -1, 0, 1, -1, 0, 1, -1, 0, 1, -1, 0, 1, -1, 0, 1 } },
{ -2, { 0, -1, 0, 1, 0, 1, 0, -1, 0, -1, 0, 1, 0, 1, 0, -1, 0, -1, 0, 1, 0 } },
{ -1, { -1, -1, -1, 1, 1, -1, -1, 1, -1, -1, 1, 1, 1, -1, 1, 1, -1, -1, 1, 1, 1 } },
{ 0, { 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 } },
{ 1, { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 } },
{ 2, { 0, 1, 0, 1, 0, -1, 0, -1, 0, 1, 0, 1, 0, -1, 0, -1, 0, 1, 0, 1, 0 } },
{ 3, { 1, 0, -1, -1, 0, -1, 1, 0, -1, 1, 0, 1, -1, 0, 1, -1, 0, -1, -1, 0, 1 } },
{ 4, { 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0 } },
{ 5, { 0, 1, -1, -1, 1, 0, 1, -1, -1, 1, 0, 1, -1, -1, 1, 0, 1, -1, -1, 1, 0 } },
{ 6, { 0, 0, 0, -1, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, -1, 0, 0, 0 } },
{ 7, { -1, 1, 1, 0, 1, -1, 1, 1, 1, 1, 0, 1, 1, 1, 1, -1, 1, 0, 1, 1, -1 } },
{ 8, { 0, 1, 0, 1, 0, -1, 0, -1, 0, 1, 0, 1, 0, -1, 0, -1, 0, 1, 0, 1, 0 } },
{ 9, { 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1 } },
{ 10, { 0, 1, 0, -1, 0, 0, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, -1, 0, 1, 0 } }
};
long k, m;
int i, err, cnt;
mp_int a, b;
if (mp_init_multi(&a, &b, NULL)!= MP_OKAY) {
return EXIT_FAILURE;
}
mp_set_int(&a, 0);
mp_set_int(&b, 1u);
if ((err = mp_kronecker(&a, &b, &i)) != MP_OKAY) {
printf("Failed executing mp_kronecker(0 | 1) %s.\n", mp_error_to_string(err));
goto LBL_ERR;
}
if (i != 1) {
printf("Failed trivial mp_kronecker(0 | 1) %d != 1\n", i);
goto LBL_ERR;
}
for (cnt = 0; cnt < (int)(sizeof(kronecker)/sizeof(kronecker[0])); ++cnt) {
k = kronecker[cnt].n;
if (k < 0) {
mp_set_int(&a, (unsigned long)(-k));
mp_neg(&a, &a);
} else {
mp_set_int(&a, (unsigned long) k);
}
/* only test positive values of a */
for (m = -10; m <= 10; m++) {
if (m < 0) {
mp_set_int(&b,(unsigned long)(-m));
mp_neg(&b, &b);
} else {
mp_set_int(&b, (unsigned long) m);
}
if ((err = mp_kronecker(&a, &b, &i)) != MP_OKAY) {
printf("Failed executing mp_kronecker(%ld | %ld) %s.\n", kronecker[cnt].n, m, mp_error_to_string(err));
goto LBL_ERR;
}
if ((err == MP_OKAY) && (i != kronecker[cnt].c[m + 10])) {
printf("Failed trivial mp_kronecker(%ld | %ld) %d != %d\n", kronecker[cnt].n, m, i, kronecker[cnt].c[m + 10]);
goto LBL_ERR;
}
}
}
mp_clear_multi(&a, &b, NULL);
return EXIT_SUCCESS;
LBL_ERR:
mp_clear_multi(&a, &b, NULL);
return EXIT_FAILURE;
}
static int test_mp_complement(void) {
int i;
mp_int a, b, c;
if (mp_init_multi(&a, &b, &c, NULL)!= MP_OKAY) {
return EXIT_FAILURE;
}
for (i = 0; i < 1000; ++i) {
int l = (rand() * rand() + 1) * (rand() % 1 ? -1 : 1);
mp_set_int(&a, labs(l));
if (l < 0)
mp_neg(&a, &a);
mp_complement(&a, &b);
l = ~l;
mp_set_int(&c, labs(l));
if (l < 0)
mp_neg(&c, &c);
if (mp_cmp(&b, &c) != MP_EQ) {
printf("\nmp_complement() bad result!");
goto LBL_ERR;
}
}
mp_clear_multi(&a, &b, &c, NULL);
return EXIT_SUCCESS;
LBL_ERR:
mp_clear_multi(&a, &b, &c, NULL);
return EXIT_FAILURE;
}
static int test_mp_tc_div_2d(void) {
int i;
mp_int a, b, d;
if (mp_init_multi(&a, &b, &d, NULL)!= MP_OKAY) {
return EXIT_FAILURE;
}
for (i = 0; i < 1000; ++i) {
int l, em;
l = (rand() * rand() + 1) * (rand() % 1 ? -1 : 1);
mp_set_int(&a, labs(l));
if (l < 0)
mp_neg(&a, &a);
em = rand() % 32;
mp_set_int(&d, labs(l >> em));
if ((l >> em) < 0)
mp_neg(&d, &d);
mp_tc_div_2d(&a, em, &b);
if (mp_cmp(&b, &d) != MP_EQ) {
printf("\nmp_tc_div_2d() bad result!");
goto LBL_ERR;
}
}
mp_clear_multi(&a, &b, &d, NULL);
return EXIT_SUCCESS;
LBL_ERR:
mp_clear_multi(&a, &b, &d, NULL);
return EXIT_FAILURE;
}
static int test_mp_tc_xor(void) {
int i;
mp_int a, b, c, d;
if (mp_init_multi(&a, &b, &c, &d, NULL)!= MP_OKAY) {
return EXIT_FAILURE;
}
for (i = 0; i < 1000; ++i) {
int l, em;
l = (rand() * rand() + 1) * (rand() % 1 ? -1 : 1);
mp_set_int(&a, labs(l));
if (l < 0)
mp_neg(&a, &a);
em = (rand() * rand() + 1) * (rand() % 1 ? -1 : 1);
mp_set_int(&b, labs(em));
if (em < 0)
mp_neg(&b, &b);
mp_set_int(&d, labs(l ^ em));
if ((l ^ em) < 0)
mp_neg(&d, &d);
mp_tc_xor(&a, &b, &c);
if (mp_cmp(&c, &d) != MP_EQ) {
printf("\nmp_tc_xor() bad result!");
goto LBL_ERR;
}
}
mp_clear_multi(&a, &b, &c, &d, NULL);
return EXIT_SUCCESS;
LBL_ERR:
mp_clear_multi(&a, &b, &c, &d, NULL);
return EXIT_FAILURE;
}
static int test_mp_tc_or(void) {
int i;
mp_int a, b, c, d;
if (mp_init_multi(&a, &b, &c, &d, NULL)!= MP_OKAY) {
return EXIT_FAILURE;
}
for (i = 0; i < 1000; ++i) {
int l, em;
l = (rand() * rand() + 1) * (rand() % 1 ? -1 : 1);
mp_set_int(&a, labs(l));
if (l < 0)
mp_neg(&a, &a);
em = (rand() * rand() + 1) * (rand() % 1 ? -1 : 1);
mp_set_int(&b, labs(em));
if (em < 0)
mp_neg(&b, &b);
mp_set_int(&d, labs(l | em));
if ((l | em) < 0)
mp_neg(&d, &d);
mp_tc_or(&a, &b, &c);
if (mp_cmp(&c, &d) != MP_EQ) {
printf("\nmp_tc_or() bad result!");
goto LBL_ERR;
}
}
mp_clear_multi(&a, &b, &c, &d, NULL);
return EXIT_SUCCESS;
LBL_ERR:
mp_clear_multi(&a, &b, &c, &d, NULL);
return EXIT_FAILURE;
}
static int test_mp_tc_and(void) {
int i;
mp_int a, b, c, d;
if (mp_init_multi(&a, &b, &c, &d, NULL)!= MP_OKAY) {
return EXIT_FAILURE;
}
for (i = 0; i < 1000; ++i) {
int l, em;
l = (rand() * rand() + 1) * (rand() % 1 ? -1 : 1);
mp_set_int(&a, labs(l));
if (l < 0)
mp_neg(&a, &a);
em = (rand() * rand() + 1) * (rand() % 1 ? -1 : 1);
mp_set_int(&b, labs(em));
if (em < 0)
mp_neg(&b, &b);
mp_set_int(&d, labs(l & em));
if ((l & em) < 0)
mp_neg(&d, &d);
mp_tc_and(&a, &b, &c);
if (mp_cmp(&c, &d) != MP_EQ) {
printf("\nmp_tc_and() bad result!");
goto LBL_ERR;
}
}
mp_clear_multi(&a, &b, &c, &d, NULL);
return EXIT_SUCCESS;
LBL_ERR:
mp_clear_multi(&a, &b, &c, &d, NULL);
return EXIT_FAILURE;
}
static int test_mp_invmod(void) {
mp_int a, b, c, d;
if (mp_init_multi(&a, &b, &c, &d, NULL)!= MP_OKAY) {
return EXIT_FAILURE;
}
/* mp_invmod corner-case of https://github.com/libtom/libtommath/issues/118 */
{
const char *a_ = "47182BB8DF0FFE9F61B1F269BACC066B48BA145D35137D426328DC3F88A5EA44";
const char *b_ = "FFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00000000FFFFFFFFFFFFFFFF";
const char *should_ = "0521A82E10376F8E4FDEF9A32A427AC2A0FFF686E00290D39E3E4B5522409596";
if (mp_read_radix(&a, a_, 16) != MP_OKAY) {
printf("\nmp_read_radix(a) failed!");
goto LBL_ERR;
}
if (mp_read_radix(&b, b_, 16) != MP_OKAY) {
printf("\nmp_read_radix(b) failed!");
goto LBL_ERR;
}
if (mp_read_radix(&c, should_, 16) != MP_OKAY) {
printf("\nmp_read_radix(should) failed!");
goto LBL_ERR;
}
if (mp_invmod(&a, &b, &d) != MP_OKAY) {
printf("\nmp_invmod() failed!");
goto LBL_ERR;
}
if (mp_cmp(&c, &d) != MP_EQ) {
printf("\nmp_invmod() bad result!");
goto LBL_ERR;
}
}
mp_clear_multi(&a, &b, &c, &d, NULL);
return EXIT_SUCCESS;
LBL_ERR:
mp_clear_multi(&a, &b, &c, &d, NULL);
return EXIT_FAILURE;
}
static int test_mp_set_double(void) {
int i;
mp_int a, b;
if (mp_init_multi(&a, &b, NULL)!= MP_OKAY) {
return EXIT_FAILURE;
}
/* test mp_get_double/mp_set_double */
#if defined(__STDC_IEC_559__) || defined(__GCC_IEC_559)
if (mp_set_double(&a, +1.0/0.0) != MP_VAL) {
printf("\nmp_set_double should return MP_VAL for +inf");
goto LBL_ERR;
}
if (mp_set_double(&a, -1.0/0.0) != MP_VAL) {
printf("\nmp_set_double should return MP_VAL for -inf");
goto LBL_ERR;
}
if (mp_set_double(&a, +0.0/0.0) != MP_VAL) {
printf("\nmp_set_double should return MP_VAL for NaN");
goto LBL_ERR;
}
if (mp_set_double(&a, -0.0/0.0) != MP_VAL) {
printf("\nmp_set_double should return MP_VAL for NaN");
goto LBL_ERR;
}
for (i = 0; i < 1000; ++i) {
int tmp = rand();
double dbl = (double)tmp * rand() + 1;
if (mp_set_double(&a, dbl) != MP_OKAY) {
printf("\nmp_set_double() failed");
goto LBL_ERR;
}
if (dbl != mp_get_double(&a)) {
printf("\nmp_get_double() bad result!");
goto LBL_ERR;
}
if (mp_set_double(&a, -dbl) != MP_OKAY) {
printf("\nmp_set_double() failed");
goto LBL_ERR;
}
if (-dbl != mp_get_double(&a)) {
printf("\nmp_get_double() bad result!");
goto LBL_ERR;
}
}
#endif
mp_clear_multi(&a, &b, NULL);
return EXIT_SUCCESS;
LBL_ERR:
mp_clear_multi(&a, &b, NULL);
return EXIT_FAILURE;
}
static int test_mp_get_int(void) {
unsigned long t;
int i;
mp_int a, b;
if (mp_init_multi(&a, &b, NULL)!= MP_OKAY) {
return EXIT_FAILURE;
}
for (i = 0; i < 1000; ++i) {
t = (unsigned long)(rand() * rand() + 1) & 0xFFFFFFFFuL;
mp_set_int(&a, t);
if (t != mp_get_int(&a)) {
printf("\nmp_get_int() bad result!");
goto LBL_ERR;
}
}
mp_set_int(&a, 0);
if (mp_get_int(&a) != 0) {
printf("\nmp_get_int() bad result!");
goto LBL_ERR;
}
mp_set_int(&a, 0xFFFFFFFFuL);
if (mp_get_int(&a) != 0xFFFFFFFFuL) {
printf("\nmp_get_int() bad result!");
goto LBL_ERR;
}
mp_clear_multi(&a, &b, NULL);
return EXIT_SUCCESS;
LBL_ERR:
mp_clear_multi(&a, &b, NULL);
return EXIT_FAILURE;
}
static int test_mp_get_long(void) {
unsigned long s, t;
int i;
mp_int a, b;
if (mp_init_multi(&a, &b, NULL)!= MP_OKAY) {
return EXIT_FAILURE;
}
for (i = 0; i < ((int)(sizeof(unsigned long)*CHAR_BIT) - 1); ++i) {
t = (1ULL << (i+1)) - 1;
if (!t)
t = -1;
printf(" t = 0x%lx i = %d\r", t, i);
do {
if (mp_set_long(&a, t) != MP_OKAY) {
printf("\nmp_set_long() error!");
goto LBL_ERR;
}
s = mp_get_long(&a);
if (s != t) {
printf("\nmp_get_long() bad result! 0x%lx != 0x%lx", s, t);
goto LBL_ERR;
}
t <<= 1;
} while (t != 0uL);
}
mp_clear_multi(&a, &b, NULL);
return EXIT_SUCCESS;
LBL_ERR:
mp_clear_multi(&a, &b, NULL);
return EXIT_FAILURE;
}
static int test_mp_get_long_long(void) {
unsigned long long q, r;
int i;
mp_int a, b;
if (mp_init_multi(&a, &b, NULL)!= MP_OKAY) {
return EXIT_FAILURE;
}
for (i = 0; i < ((int)(sizeof(unsigned long long)*CHAR_BIT) - 1); ++i) {
r = (1ULL << (i+1)) - 1;
if (!r)
r = -1;
printf(" r = 0x%llx i = %d\r", r, i);
do {
if (mp_set_long_long(&a, r) != MP_OKAY) {
printf("\nmp_set_long_long() error!");
goto LBL_ERR;
}
q = mp_get_long_long(&a);
if (q != r) {
printf("\nmp_get_long_long() bad result! 0x%llx != 0x%llx", q, r);
goto LBL_ERR;
}
r <<= 1;
} while (r != 0uLL);
}
mp_clear_multi(&a, &b, NULL);
return EXIT_SUCCESS;
LBL_ERR:
mp_clear_multi(&a, &b, NULL);
return EXIT_FAILURE;
}
static int test_mp_sqrt(void) {
int i, n;
mp_int a, b, c, d;
if (mp_init_multi(&a, &b, &c, &d, NULL)!= MP_OKAY) {
return EXIT_FAILURE;
}
for (i = 0; i < 1000; ++i) {
printf("%6d\r", i);
fflush(stdout);
n = (rand() & 15) + 1;
mp_rand(&a, n);
if (mp_sqrt(&a, &b) != MP_OKAY) {
printf("\nmp_sqrt() error!");
goto LBL_ERR;
}
mp_n_root_ex(&a, 2, &c, 0);
mp_n_root_ex(&a, 2, &d, 1);
if (mp_cmp_mag(&c, &d) != MP_EQ) {
printf("\nmp_n_root_ex() bad result!");
goto LBL_ERR;
}
if (mp_cmp_mag(&b, &c) != MP_EQ) {
printf("mp_sqrt() bad result!\n");
goto LBL_ERR;
}
}
mp_clear_multi(&a, &b, &c, &d, NULL);
return EXIT_SUCCESS;
LBL_ERR:
mp_clear_multi(&a, &b, &c, &d, NULL);
return EXIT_FAILURE;
}
static int test_mp_is_square(void) {
int i, n;
mp_int a, b;
if (mp_init_multi(&a, &b, NULL)!= MP_OKAY) {
return EXIT_FAILURE;
}
for (i = 0; i < 1000; ++i) {
printf("%6d\r", i);
fflush(stdout);
/* test mp_is_square false negatives */
n = (rand() & 7) + 1;
mp_rand(&a, n);
mp_sqr(&a, &a);
if (mp_is_square(&a, &n) != MP_OKAY) {
printf("\nfn:mp_is_square() error!");
goto LBL_ERR;
}
if (n == 0) {
printf("\nfn:mp_is_square() bad result!");
goto LBL_ERR;
}
/* test for false positives */
mp_add_d(&a, 1uL, &a);
if (mp_is_square(&a, &n) != MP_OKAY) {
printf("\nfp:mp_is_square() error!");
goto LBL_ERR;
}
if (n == 1) {
printf("\nfp:mp_is_square() bad result!");
goto LBL_ERR;
}
}
printf("\n\n");
mp_clear_multi(&a, &b, NULL);
return EXIT_SUCCESS;
LBL_ERR:
mp_clear_multi(&a, &b, NULL);
return EXIT_FAILURE;
}
static int test_mp_sqrtmod_prime(void) {
struct mp_sqrtmod_prime_st {
unsigned long p;
unsigned long n;
mp_digit r;
};
static struct mp_sqrtmod_prime_st sqrtmod_prime[] = {
{ 5, 14, 3 },
{ 7, 9, 4 },
{ 113, 2, 62 }
};
int i;
mp_int a, b, c;
if (mp_init_multi(&a, &b, &c, NULL)!= MP_OKAY) {
return EXIT_FAILURE;
}
/* r^2 = n (mod p) */
for (i = 0; i < (int)(sizeof(sqrtmod_prime)/sizeof(sqrtmod_prime[0])); ++i) {
mp_set_int(&a, sqrtmod_prime[i].p);
mp_set_int(&b, sqrtmod_prime[i].n);
if (mp_sqrtmod_prime(&b, &a, &c) != MP_OKAY) {
printf("Failed executing %d. mp_sqrtmod_prime\n", (i+1));
goto LBL_ERR;
}
if (mp_cmp_d(&c, sqrtmod_prime[i].r) != MP_EQ) {
printf("Failed %d. trivial mp_sqrtmod_prime\n", (i+1));
ndraw(&c, "r");
goto LBL_ERR;
}
}
mp_clear_multi(&a, &b, &c, NULL);
return EXIT_SUCCESS;
LBL_ERR:
mp_clear_multi(&a, &b, &c, NULL);
return EXIT_FAILURE;
}
#if defined(LTM_DEMO_REAL_RAND) && !defined(_WIN32)
static FILE *fd_urandom = 0;
#endif
static int myrng(unsigned char *dst, int len, void *dat)
{
int x;
(void)dat;
#if defined(LTM_DEMO_REAL_RAND) && !defined(_WIN32)
if (!fd_urandom) {
fprintf(stderr, "\nno /dev/urandom\n");
} else {
return fread(dst, 1uL, len, fd_urandom);
}
#endif
for (x = 0; x < len;) {
unsigned int r = (unsigned int)rand();
do {
dst[x++] = r & 0xFFu;
r >>= 8;
} while ((r != 0u) && (x < len));
}
return len;
}
static int test_mp_prime_random_ex(void) {
int ix, err;
mp_int a, b;
if (mp_init_multi(&a, &b, NULL)!= MP_OKAY) {
return EXIT_FAILURE;
}
/* test for size */
for (ix = 10; ix < 128; ix++) {
printf("Testing (not safe-prime): %9d bits \r", ix);
fflush(stdout);
err = mp_prime_random_ex(&a, 8, ix,
(rand() & 1) ? 0 : LTM_PRIME_2MSB_ON, myrng,
NULL);
if (err != MP_OKAY) {
printf("\nfailed with error: %s\n", mp_error_to_string(err));
goto LBL_ERR;
}
if (mp_count_bits(&a) != ix) {
printf("Prime is %d not %d bits!!!\n", mp_count_bits(&a), ix);
goto LBL_ERR;
}
}
printf("\n");
mp_clear_multi(&a, &b, NULL);
return EXIT_SUCCESS;
LBL_ERR:
mp_clear_multi(&a, &b, NULL);
return EXIT_FAILURE;
}
static int test_mp_prime_is_prime(void) {
int ix, err, cnt;
mp_int a, b;
if (mp_init_multi(&a, &b, NULL)!= MP_OKAY) {
return EXIT_FAILURE;
}
/* strong Miller-Rabin pseudoprime to the first 200 primes (F. Arnault) */
puts("Testing mp_prime_is_prime() with Arnault's pseudoprime 803...901 \n");
mp_read_radix(&a,
"91xLNF3roobhzgTzoFIG6P13ZqhOVYSN60Fa7Cj2jVR1g0k89zdahO9/kAiRprpfO1VAp1aBHucLFV/qLKLFb+zonV7R2Vxp1K13ClwUXStpV0oxTNQVjwybmFb5NBEHImZ6V7P6+udRJuH8VbMEnS0H8/pSqQrg82OoQQ2fPpAk6G1hkjqoCv5s/Yr",
64);
mp_prime_is_prime(&a, 8, &cnt);
if (cnt == MP_YES) {
printf("Arnault's pseudoprime is not prime but mp_prime_is_prime says it is.\n");
goto LBL_ERR;
}
/* About the same size as Arnault's pseudoprime */
puts("Testing mp_prime_is_prime() with certified prime 2^1119 + 53\n");
mp_set(&a,1u);
mp_mul_2d(&a,1119,&a);
mp_add_d(&a,53,&a);
err = mp_prime_is_prime(&a, 8, &cnt);
/* small problem */
if (err != MP_OKAY) {
printf("\nfailed with error: %s\n", mp_error_to_string(err));
}
/* large problem */
if (cnt == MP_NO) {
printf("A certified prime is a prime but mp_prime_is_prime says it is not.\n");
}
if ((err != MP_OKAY) || (cnt == MP_NO)) {
printf("prime tested was: ");
mp_fwrite(&a,16,stdout);
putchar('\n');
goto LBL_ERR;
}
for (ix = 16; ix < 128; ix++) {
printf("Testing ( safe-prime): %9d bits \r", ix);
fflush(stdout);
err = mp_prime_random_ex(
&a, 8, ix, ((rand() & 1) ? 0 : LTM_PRIME_2MSB_ON) | LTM_PRIME_SAFE,
myrng, NULL);
if (err != MP_OKAY) {
printf("\nfailed with error: %s\n", mp_error_to_string(err));
goto LBL_ERR;
}
if (mp_count_bits(&a) != ix) {
printf("Prime is %d not %d bits!!!\n", mp_count_bits(&a), ix);
goto LBL_ERR;
}
/* let's see if it's really a safe prime */
mp_sub_d(&a, 1uL, &b);
mp_div_2(&b, &b);
err = mp_prime_is_prime(&b, 8, &cnt);
/* small problem */
if (err != MP_OKAY) {
printf("\nfailed with error: %s\n", mp_error_to_string(err));
}
/* large problem */
if (cnt == MP_NO) {
printf("\nsub is not prime!\n");
}
if ((err != MP_OKAY) || (cnt == MP_NO)) {
printf("prime tested was: ");
mp_fwrite(&a,16,stdout);
putchar('\n');
printf("sub tested was: ");
mp_fwrite(&b,16,stdout);
putchar('\n');
goto LBL_ERR;
}
}
/* Check regarding problem #143 */
#ifndef MP_8BIT
mp_read_radix(&a,
"FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD129024E088A67CC74020BBEA63B139B22514A08798E3404DDEF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245E485B576625E7EC6F44C42E9A63A3620FFFFFFFFFFFFFFFF",
16);
err = mp_prime_strong_lucas_selfridge(&a, &cnt);
/* small problem */
if (err != MP_OKAY) {
printf("\nmp_prime_strong_lucas_selfridge failed with error: %s\n", mp_error_to_string(err));
}
/* large problem */
if (cnt == MP_NO) {
printf("\n\nissue #143 - mp_prime_strong_lucas_selfridge FAILED!\n");
}
if ((err != MP_OKAY) || (cnt == MP_NO)) {
printf("prime tested was: ");
mp_fwrite(&a,16,stdout);
putchar('\n');
goto LBL_ERR;
}
#endif
printf("\n\n");
mp_clear_multi(&a, &b, NULL);
return EXIT_SUCCESS;
LBL_ERR:
mp_clear_multi(&a, &b, NULL);
return EXIT_FAILURE;
}
static int test_mp_montgomery_reduce(void) {
mp_digit mp;
int ix, i, n;
char buf[4096];
mp_int a, b, c, d, e;
if (mp_init_multi(&a, &b, &c, &d, &e, NULL)!= MP_OKAY) {
return EXIT_FAILURE;
}
/* test montgomery */
for (i = 1; i <= 10; i++) {
if (i == 10)
i = 1000;
printf(" digit size: %2d\r", i);
fflush(stdout);
for (n = 0; n < 1000; n++) {
mp_rand(&a, i);
a.dp[0] |= 1;
/* let's see if R is right */
mp_montgomery_calc_normalization(&b, &a);
mp_montgomery_setup(&a, &mp);
/* now test a random reduction */
for (ix = 0; ix < 100; ix++) {
mp_rand(&c, 1 + abs(rand()) % (2*i));
mp_copy(&c, &d);
mp_copy(&c, &e);
mp_mod(&d, &a, &d);
mp_montgomery_reduce(&c, &a, mp);
mp_mulmod(&c, &b, &a, &c);
if (mp_cmp(&c, &d) != MP_EQ) {
/* *INDENT-OFF* */
printf("d = e mod a, c = e MOD a\n");
mp_todecimal(&a, buf); printf("a = %s\n", buf);
mp_todecimal(&e, buf); printf("e = %s\n", buf);
mp_todecimal(&d, buf); printf("d = %s\n", buf);
mp_todecimal(&c, buf); printf("c = %s\n", buf);
printf("compare no compare!\n"); goto LBL_ERR;
/* *INDENT-ON* */
}
/* only one big montgomery reduction */
if (i > 10) {
n = 1000;
ix = 100;
}
}
}
}
printf("\n\n");
mp_clear_multi(&a, &b, &c, &d, &e, NULL);
return EXIT_SUCCESS;
LBL_ERR:
mp_clear_multi(&a, &b, &c, &d, &e, NULL);
return EXIT_FAILURE;
}
static int test_mp_read_radix(void) {
char buf[4096];
mp_int a;
if (mp_init_multi(&a, NULL)!= MP_OKAY) {
return EXIT_FAILURE;
}
mp_read_radix(&a, "123456", 10);
mp_toradix_n(&a, buf, 10, 3);
printf("a == %s\n", buf);
mp_toradix_n(&a, buf, 10, 4);
printf("a == %s\n", buf);
mp_toradix_n(&a, buf, 10, 30);
printf("a == %s\n", buf);
#if 0
for (;;) {
fgets(buf, sizeof(buf), stdin);
mp_read_radix(&a, buf, 10);
mp_prime_next_prime(&a, 5, 1);
mp_toradix(&a, buf, 10);
printf("%s, %lu\n", buf, a.dp[0] & 3);
}
#endif
mp_clear_multi(&a, NULL);
return EXIT_SUCCESS;
}
static int test_mp_cnt_lsb(void) {
int ix;
mp_int a, b;
if (mp_init_multi(&a, &b, NULL)!= MP_OKAY) {
return EXIT_FAILURE;
}
mp_set(&a, 1uL);
for (ix = 0; ix < 1024; ix++) {
if (mp_cnt_lsb(&a) != ix) {
printf("Failed at %d, %d\n", ix, mp_cnt_lsb(&a));
goto LBL_ERR;
}
mp_mul_2(&a, &a);
}
mp_clear_multi(&a, &b, NULL);
return EXIT_SUCCESS;
LBL_ERR:
mp_clear_multi(&a, &b, NULL);
return EXIT_FAILURE;
}
static int test_mp_reduce_2k(void) {
int ix, cnt;
mp_int a, b, c, d;
if (mp_init_multi(&a, &b, &c, &d, NULL)!= MP_OKAY) {
return EXIT_FAILURE;
}
/* test mp_reduce_2k */
for (cnt = 3; cnt <= 128; ++cnt) {
mp_digit tmp;
mp_2expt(&a, cnt);
mp_sub_d(&a, 2uL, &a); /* a = 2**cnt - 2 */
printf("\r %4d bits", cnt);
printf("(%d)", mp_reduce_is_2k(&a));
mp_reduce_2k_setup(&a, &tmp);
printf("(%lu)", (unsigned long) tmp);
for (ix = 0; ix < 1000; ix++) {
if (!(ix & 127)) {
printf(".");
fflush(stdout);
}
mp_rand(&b, (cnt / DIGIT_BIT + 1) * 2);
mp_copy(&c, &b);
mp_mod(&c, &a, &c);
mp_reduce_2k(&b, &a, 2uL);
if (mp_cmp(&c, &b) != MP_EQ) {
printf("FAILED\n");
goto LBL_ERR;
}
}
}
mp_clear_multi(&a, &b, &c, &d, NULL);
return EXIT_SUCCESS;
LBL_ERR:
mp_clear_multi(&a, &b, &c, &d, NULL);
return EXIT_FAILURE;
}
static int test_mp_div_3(void) {
int cnt;
mp_int a, b, c, d, e;
if (mp_init_multi(&a, &b, &c, &d, &e, NULL)!= MP_OKAY) {
return EXIT_FAILURE;
}
/* test mp_div_3 */
mp_set(&d, 3uL);
for (cnt = 0; cnt < 10000;) {
mp_digit r2;
if (!(++cnt & 127)) {
printf("%9d\r", cnt);
fflush(stdout);
}
mp_rand(&a, abs(rand()) % 128 + 1);
mp_div(&a, &d, &b, &e);
mp_div_3(&a, &c, &r2);
if (mp_cmp(&b, &c) || mp_cmp_d(&e, r2)) {
printf("\nmp_div_3 => Failure\n");
goto LBL_ERR;
}
}
printf("\nPassed div_3 testing");
mp_clear_multi(&a, &b, &c, &d, &e, NULL);
return EXIT_SUCCESS;
LBL_ERR:
mp_clear_multi(&a, &b, &c, &d, &e, NULL);
return EXIT_FAILURE;
}
static int test_mp_dr_reduce(void) {
mp_digit mp;
int cnt;
unsigned rr;
int ix;
mp_int a, b, c;
if (mp_init_multi(&a, &b, &c, NULL)!= MP_OKAY) {
return EXIT_FAILURE;
}
/* test the DR reduction */
for (cnt = 2; cnt < 32; cnt++) {
printf("\r%d digit modulus", cnt);
mp_grow(&a, cnt);
mp_zero(&a);
for (ix = 1; ix < cnt; ix++) {
a.dp[ix] = MP_MASK;
}
a.used = cnt;
a.dp[0] = 3;
mp_rand(&b, cnt - 1);
mp_copy(&b, &c);
rr = 0;
do {
if (!(rr & 127)) {
printf(".");
fflush(stdout);
}
mp_sqr(&b, &b);
mp_add_d(&b, 1uL, &b);
mp_copy(&b, &c);
mp_mod(&b, &a, &b);
mp_dr_setup(&a, &mp);
mp_dr_reduce(&c, &a, mp);
if (mp_cmp(&b, &c) != MP_EQ) {
printf("Failed on trial %u\n", rr);
goto LBL_ERR;
}
} while (++rr < 500);
printf(" passed");
fflush(stdout);
}
mp_clear_multi(&a, &b, &c, NULL);
return EXIT_SUCCESS;
LBL_ERR:
mp_clear_multi(&a, &b, &c, NULL);
return EXIT_FAILURE;
}
static int test_mp_reduce_2k_l(void) {
# if LTM_DEMO_TEST_REDUCE_2K_L
mp_int a, b;
if (mp_init_multi(&a, &b, NULL)!= MP_OKAY) {
return EXIT_FAILURE;
}
/* test the mp_reduce_2k_l code */
# if LTM_DEMO_TEST_REDUCE_2K_L == 1
/* first load P with 2^1024 - 0x2A434 B9FDEC95 D8F9D550 FFFFFFFF FFFFFFFF */
mp_2expt(&a, 1024);
mp_read_radix(&b, "2A434B9FDEC95D8F9D550FFFFFFFFFFFFFFFF", 16);
mp_sub(&a, &b, &a);
# elif LTM_DEMO_TEST_REDUCE_2K_L == 2
/* p = 2^2048 - 0x1 00000000 00000000 00000000 00000000 4945DDBF 8EA2A91D 5776399B B83E188F */
mp_2expt(&a, 2048);
mp_read_radix(&b,
"1000000000000000000000000000000004945DDBF8EA2A91D5776399BB83E188F",
16);
mp_sub(&a, &b, &a);
# else
# error oops
# endif
mp_todecimal(&a, buf);
printf("\n\np==%s\n", buf);
/* now mp_reduce_is_2k_l() should return */
if (mp_reduce_is_2k_l(&a) != 1) {
printf("mp_reduce_is_2k_l() return 0, should be 1\n");
goto LBL_ERR;
}
mp_reduce_2k_setup_l(&a, &d);
/* now do a million square+1 to see if it varies */
mp_rand(&b, 64);
mp_mod(&b, &a, &b);
mp_copy(&b, &c);
printf("Testing: mp_reduce_2k_l...");
fflush(stdout);
for (cnt = 0; cnt < (int)(1UL << 20); cnt++) {
mp_sqr(&b, &b);
mp_add_d(&b, 1uL, &b);
mp_reduce_2k_l(&b, &a, &d);
mp_sqr(&c, &c);
mp_add_d(&c, 1uL, &c);
mp_mod(&c, &a, &c);
if (mp_cmp(&b, &c) != MP_EQ) {
printf("mp_reduce_2k_l() failed at step %d\n", cnt);
mp_tohex(&b, buf);
printf("b == %s\n", buf);
mp_tohex(&c, buf);
printf("c == %s\n", buf);
goto LBL_ERR;
}
}
mp_clear_multi(&a, &b, NULL);
return EXIT_SUCCESS;
LBL_ERR:
mp_clear_multi(&a, &b, NULL);
return EXIT_FAILURE;
#else
return EXIT_SUCCESS;
# endif /* LTM_DEMO_TEST_REDUCE_2K_L */
}
int unit_tests(void) {
static const struct {
const char* name;
int (*fn)(void);
} test[] = {
#define T(n) { #n, test_##n }
T(trivial_stuff),
T(mp_cnt_lsb),
T(mp_complement),
T(mp_div_3),
T(mp_dr_reduce),
T(mp_get_int),
T(mp_get_long),
T(mp_get_long_long),
T(mp_invmod),
T(mp_is_square),
T(mp_jacobi),
T(mp_kronecker),
T(mp_montgomery_reduce),
T(mp_prime_is_prime),
T(mp_prime_random_ex),
T(mp_read_radix),
T(mp_reduce_2k),
T(mp_reduce_2k_l),
T(mp_set_double),
T(mp_sqrt),
T(mp_sqrtmod_prime),
T(mp_tc_and),
T(mp_tc_div_2d),
T(mp_tc_or),
T(mp_tc_xor),
#undef T
};
unsigned long i;
int res = EXIT_SUCCESS;
#if defined(LTM_DEMO_REAL_RAND) && !defined(_WIN32)
fd_urandom = fopen("/dev/urandom", "r");
if (!fd_urandom) {
fprintf(stderr, "\ncould not open /dev/urandom\n");
}
#endif
for (i = 0; i < sizeof (test) / sizeof (test[0]); ++i) {
printf("TEST %s\n\n", test[i].name);
if (test[i].fn() != EXIT_SUCCESS) {
printf("\n\nFAIL %s\n\n", test[i].name);
res = EXIT_FAILURE;
break;
}
printf("\n\n");
}
#if defined(LTM_DEMO_REAL_RAND) && !defined(_WIN32)
if (fd_urandom) {
fclose(fd_urandom);
}
#endif
return res;
}
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