Avoids a potentially shortening size_t to int cast in strauss_wnaf_

Fixes #834.
This commit is contained in:
Tim Ruffing 2020-10-21 09:30:30 +02:00
parent c6b6b8f1bb
commit 8893f42438

View File

@ -443,7 +443,7 @@ struct secp256k1_strauss_state {
struct secp256k1_strauss_point_state* ps;
};
static void secp256k1_ecmult_strauss_wnaf(const secp256k1_ecmult_context *ctx, const struct secp256k1_strauss_state *state, secp256k1_gej *r, int num, const secp256k1_gej *a, const secp256k1_scalar *na, const secp256k1_scalar *ng) {
static void secp256k1_ecmult_strauss_wnaf(const secp256k1_ecmult_context *ctx, const struct secp256k1_strauss_state *state, secp256k1_gej *r, size_t num, const secp256k1_gej *a, const secp256k1_scalar *na, const secp256k1_scalar *ng) {
secp256k1_ge tmpa;
secp256k1_fe Z;
/* Splitted G factors. */
@ -454,8 +454,8 @@ static void secp256k1_ecmult_strauss_wnaf(const secp256k1_ecmult_context *ctx, c
int bits_ng_128 = 0;
int i;
int bits = 0;
int np;
int no = 0;
size_t np;
size_t no = 0;
for (np = 0; np < num; ++np) {
if (secp256k1_scalar_is_zero(&na[np]) || secp256k1_gej_is_infinity(&a[np])) {