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

secp256k1_gej_double_nonzero supports infinity

Browse Source
This commit is contained in:
Pieter Wuille
2020-07-28 18:12:14 -07:00
parent 214cb3c321
commit 18d36327fd
5 changed files with 11 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
src/group.h
View File

@@ -95,8 +95,8 @@ static int secp256k1_gej_is_infinity(const secp256k1_gej *a);
/** Check whether a group element's y coordinate is a quadratic residue. */
static int secp256k1_gej_has_quad_y_var(const secp256k1_gej *a);
/** Set r equal to the double of a, a cannot be infinity. Constant time. */
static void secp256k1_gej_double_nonzero(secp256k1_gej *r, const secp256k1_gej *a);
/** Set r equal to the double of a. Constant time. */
static void secp256k1_gej_double(secp256k1_gej *r, const secp256k1_gej *a);
/** Set r equal to the double of a. If rzr is not-NULL this sets *rzr such that r->z == a->z * *rzr (where infinity means an implicit z = 0). */
static void secp256k1_gej_double_var(secp256k1_gej *r, const secp256k1_gej *a, secp256k1_fe *rzr);