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Abstract out verify logic for fe_add_int

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Pieter Wuille
2023-05-11 03:05:35 -04:00
parent 89e324c6b9
commit 4371f98346
4 changed files with 18 additions and 19 deletions
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7
src/field.h
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@@ -99,6 +99,7 @@ static const secp256k1_fe secp256k1_const_beta = SECP256K1_FE_CONST(
# define secp256k1_fe_inv_var secp256k1_fe_impl_inv_var
# define secp256k1_fe_get_bounds secp256k1_fe_impl_get_bounds
# define secp256k1_fe_half secp256k1_fe_impl_half
# define secp256k1_fe_add_int secp256k1_fe_impl_add_int
#endif /* !defined(VERIFY) */
/** Normalize a field element.
@@ -213,7 +214,11 @@ static void secp256k1_fe_get_b32(unsigned char *r, const secp256k1_fe *a);
*/
static void secp256k1_fe_negate(secp256k1_fe *r, const secp256k1_fe *a, int m);
/** Adds a small integer (up to 0x7FFF) to r. The resulting magnitude increases by one. */
/** Add a small integer to a field element.
*
* Performs {r += a}. The magnitude of r increases by 1, and normalized is cleared.
* a must be in range [0,0xFFFF].
*/
static void secp256k1_fe_add_int(secp256k1_fe *r, int a);
/** Multiply a field element with a small integer.