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

Merge #841: Avoids a potentially shortening size_t to int cast in strauss_wnaf_

Browse Source 
8893f42438ac75838a9dc7df7e98b29e9a1a085f Avoids a potentially shortening size_t to int cast in strauss_wnaf_ (Tim Ruffing)

Pull request description:

ACKs for top commit:
  sipa:
    ACK 8893f42438ac75838a9dc7df7e98b29e9a1a085f. `np` and `no` shouldn't ever take on negative values.
  jonasnick:
    ACK 8893f42438ac75838a9dc7df7e98b29e9a1a085f
  elichai:
    ACK 8893f42438ac75838a9dc7df7e98b29e9a1a085f

Tree-SHA512: 431a6b88c8db8c8883b35c9bc03c90e37ecd0b06c7ee01c5d83cca4a7f6fc1f3cfbbaa871a4a23374ce4cc5bcfb9502c7f2e2540f9f9db9535e47e48827b6af6
This commit is contained in:
Jonas Nick 2020-10-27 13:24:17 +00:00
commit 6f54e69f03
No known key found for this signature in database
GPG Key ID: 4861DBF262123605
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
src/ecmult_impl.h
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])) {