frost/secp256k1-zkp
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Add missing null check for ctx and input keys in the public API

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This commit is contained in:
Elichai Turkel
2020-07-30 12:26:28 +03:00
parent f4edfc7581
commit adec5a1638
4 changed files with 7 additions and 5 deletions
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2
src/secp256k1.c
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@@ -771,6 +771,7 @@ int secp256k1_ec_pubkey_combine(const secp256k1_context* ctx, secp256k1_pubkey *
secp256k1_gej Qj;
secp256k1_ge Q;
VERIFY_CHECK(ctx != NULL);
ARG_CHECK(pubnonce != NULL);
memset(pubnonce, 0, sizeof(*pubnonce));
ARG_CHECK(n >= 1);
@@ -779,6 +780,7 @@ int secp256k1_ec_pubkey_combine(const secp256k1_context* ctx, secp256k1_pubkey *
secp256k1_gej_set_infinity(&Qj);
for (i = 0; i < n; i++) {
ARG_CHECK(pubnonces[i] != NULL);
secp256k1_pubkey_load(ctx, &Q, pubnonces[i]);
secp256k1_gej_add_ge(&Qj, &Qj, &Q);
}