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Make secp256k1_fe_sqrt constant time

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This commit is contained in:
Pieter Wuille
2016-07-09 14:23:44 +02:00
parent e2a8e92125
commit 926836ad36
6 changed files with 24 additions and 14 deletions
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6
src/tests.c
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@@ -1574,7 +1574,7 @@ void random_fe_non_zero(secp256k1_fe *nz) {
void random_fe_non_square(secp256k1_fe *ns) {
secp256k1_fe r;
random_fe_non_zero(ns);
if (secp256k1_fe_sqrt_var(&r, ns)) {
if (secp256k1_fe_sqrt(&r, ns)) {
secp256k1_fe_negate(ns, ns, 1);
}
}
@@ -1769,7 +1769,7 @@ void run_sqr(void) {
void test_sqrt(const secp256k1_fe *a, const secp256k1_fe *k) {
secp256k1_fe r1, r2;
int v = secp256k1_fe_sqrt_var(&r1, a);
int v = secp256k1_fe_sqrt(&r1, a);
CHECK((v == 0) == (k == NULL));
if (k != NULL) {
@@ -2188,7 +2188,7 @@ void test_group_decompress(const secp256k1_fe* x) {
secp256k1_fe_normalize_var(&fex);
res_quad = secp256k1_ge_set_xquad_var(&ge_quad, &fex);
res_quad = secp256k1_ge_set_xquad(&ge_quad, &fex);
res_even = secp256k1_ge_set_xo_var(&ge_even, &fex, 0);
res_odd = secp256k1_ge_set_xo_var(&ge_odd, &fex, 1);