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Abstract out verify logic for fe_normalize_var

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This commit is contained in:
Pieter Wuille
2022-01-28 17:59:36 -05:00
parent e28b51f522
commit 6c31371120
4 changed files with 16 additions and 15 deletions
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6
src/field.h
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@@ -77,6 +77,7 @@ static const secp256k1_fe secp256k1_const_beta = SECP256K1_FE_CONST(
* function call (even though presumably inlinable). */
# define secp256k1_fe_normalize secp256k1_fe_impl_normalize
# define secp256k1_fe_normalize_weak secp256k1_fe_impl_normalize_weak
# define secp256k1_fe_normalize_var secp256k1_fe_impl_normalize_var
#endif /* !defined(VERIFY) */
/** Normalize a field element.
@@ -93,7 +94,10 @@ static void secp256k1_fe_normalize(secp256k1_fe *r);
*/
static void secp256k1_fe_normalize_weak(secp256k1_fe *r);
/** Normalize a field element, without constant-time guarantee. */
/** Normalize a field element, without constant-time guarantee.
*
* Identical in behavior to secp256k1_fe_normalize, but not constant time in r.
*/
static void secp256k1_fe_normalize_var(secp256k1_fe *r);
/** Verify whether a field element represents zero i.e. would normalize to a zero value. */