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Add _fe_normalizes_to_zero method

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This commit is contained in:
Peter Dettman
2014-12-12 12:55:01 +07:00
committed by Pieter Wuille
parent d7174edf5f
commit eed599dd72
5 changed files with 71 additions and 15 deletions
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4
src/field_impl.h
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@@ -64,12 +64,12 @@ static int secp256k1_fe_set_hex(secp256k1_fe_t *r, const char *a, int alen) {
return secp256k1_fe_set_b32(r, tmp);
}
/* TODO Not actually var currently */
SECP256K1_INLINE static int secp256k1_fe_equal_var(const secp256k1_fe_t *a, const secp256k1_fe_t *b) {
secp256k1_fe_t na;
secp256k1_fe_negate(&na, a, 1);
secp256k1_fe_add(&na, b);
secp256k1_fe_normalize_var(&na);
return secp256k1_fe_is_zero(&na);
return secp256k1_fe_normalizes_to_zero(&na);
}
static int secp256k1_fe_sqrt_var(secp256k1_fe_t *r, const secp256k1_fe_t *a) {