surjectionproof: introduce SECP256K1_SURJECTIONPROOF_MAX_USED_INPUTS constant and set it to 16

2019-04-30 23:04:08 +00:00
parent b8a3ff5f3b
commit 56f69d979f
4 changed files with 19 additions and 12 deletions
--- a/src/modules/surjection/surjection_impl.h
+++ b/src/modules/surjection/surjection_impl.h
@@ -77,7 +77,7 @@ SECP256K1_INLINE static int secp256k1_surjection_compute_public_keys(secp256k1_g
                *ring_input_index = j;
            }
            j++;
-            if (j > n_pubkeys) {
+            if (j > n_pubkeys || j > SECP256K1_SURJECTIONPROOF_MAX_USED_INPUTS) {
                return 0;
            }
        }