frost/secp256k1-zkp
3
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Abstract out verify logic for fe_is_square_var

Browse Source
This commit is contained in:
Pieter Wuille
2023-05-11 03:16:00 -04:00
parent 4371f98346
commit 4e176ad5b9
4 changed files with 18 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
src/field_impl.h
View File

@@ -384,6 +384,17 @@ SECP256K1_INLINE static void secp256k1_fe_inv_var(secp256k1_fe *r, const secp256
secp256k1_fe_verify(r);
}
static int secp256k1_fe_impl_is_square_var(const secp256k1_fe *x);
SECP256K1_INLINE static int secp256k1_fe_is_square_var(const secp256k1_fe *x) {
int ret;
secp256k1_fe tmp = *x, sqrt;
secp256k1_fe_verify(x);
ret = secp256k1_fe_impl_is_square_var(x);
secp256k1_fe_normalize_weak(&tmp);
VERIFY_CHECK(ret == secp256k1_fe_sqrt(&sqrt, &tmp));
return ret;
}
static void secp256k1_fe_impl_get_bounds(secp256k1_fe* r, int m);
SECP256K1_INLINE static void secp256k1_fe_get_bounds(secp256k1_fe* r, int m) {
VERIFY_CHECK(m >= 0);