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Fix checks of whitelist serialize/parse arguments

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This commit is contained in:
Jonas Nick
2017-06-27 12:14:29 +02:00
committed by Tim Ruffing
parent 29d0d562dc
commit dbf3d752a8
3 changed files with 48 additions and 12 deletions
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5
src/modules/whitelist/main_impl.h
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@@ -141,6 +141,10 @@ int secp256k1_whitelist_signature_parse(const secp256k1_context* ctx, secp256k1_
ARG_CHECK(sig != NULL);
ARG_CHECK(input != NULL);
if (input_len == 0) {
return 0;
}
sig->n_keys = input[0];
if (sig->n_keys >= MAX_KEYS || input_len != 1 + 32 * (sig->n_keys + 1)) {
return 0;
@@ -153,6 +157,7 @@ int secp256k1_whitelist_signature_parse(const secp256k1_context* ctx, secp256k1_
int secp256k1_whitelist_signature_serialize(const secp256k1_context* ctx, unsigned char *output, size_t *output_len, const secp256k1_whitelist_signature *sig) {
VERIFY_CHECK(ctx != NULL);
ARG_CHECK(output != NULL);
ARG_CHECK(output_len != NULL);
ARG_CHECK(sig != NULL);
if (*output_len < 1 + 32 * (sig->n_keys + 1)) {