frost/secp256k1-zkp
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Add bounds checking to field element setters

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This commit is contained in:
Pieter Wuille
2014-11-24 12:38:05 +01:00
parent bb2cd94e09
commit d907ebc0e3
10 changed files with 37 additions and 24 deletions
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16
src/tests.c
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@@ -38,7 +38,7 @@ void random_field_element_test(secp256k1_fe_t *fe) {
secp256k1_num_set_bin(&num, b32, 32);
if (secp256k1_num_cmp(&num, &secp256k1_fe_consts->p) >= 0)
continue;
secp256k1_fe_set_b32(fe, b32);
VERIFY_CHECK(secp256k1_fe_set_b32(fe, b32));
break;
} while(1);
}
@@ -440,8 +440,12 @@ void run_scalar_tests(void) {
void random_fe(secp256k1_fe_t *x) {
unsigned char bin[32];
secp256k1_rand256(bin);
secp256k1_fe_set_b32(x, bin);
do {
secp256k1_rand256(bin);
if (secp256k1_fe_set_b32(x, bin)) {
return;
}
} while(1);
}
void random_fe_non_zero(secp256k1_fe_t *nz) {
@@ -697,8 +701,8 @@ void run_ge(void) {
void run_ecmult_chain(void) {
/* random starting point A (on the curve) */
secp256k1_fe_t ax; secp256k1_fe_set_hex(&ax, "8b30bbe9ae2a990696b22f670709dff3727fd8bc04d3362c6c7bf458e2846004", 64);
secp256k1_fe_t ay; secp256k1_fe_set_hex(&ay, "a357ae915c4a65281309edf20504740f0eb3343990216b4f81063cb65f2f7e0f", 64);
secp256k1_fe_t ax; VERIFY_CHECK(secp256k1_fe_set_hex(&ax, "8b30bbe9ae2a990696b22f670709dff3727fd8bc04d3362c6c7bf458e2846004", 64));
secp256k1_fe_t ay; VERIFY_CHECK(secp256k1_fe_set_hex(&ay, "a357ae915c4a65281309edf20504740f0eb3343990216b4f81063cb65f2f7e0f", 64));
secp256k1_gej_t a; secp256k1_gej_set_xy(&a, &ax, &ay);
/* two random initial factors xn and gn */
secp256k1_num_t xn;
@@ -759,7 +763,7 @@ void test_point_times_order(const secp256k1_gej_t *point) {
}
void run_point_times_order(void) {
secp256k1_fe_t x; secp256k1_fe_set_hex(&x, "02", 2);
secp256k1_fe_t x; VERIFY_CHECK(secp256k1_fe_set_hex(&x, "02", 2));
for (int i=0; i<500; i++) {
secp256k1_ge_t p;
if (secp256k1_ge_set_xo(&p, &x, 1)) {