mirror of https://github.com/bitcoin/bitcoin
32 lines
1.1 KiB
C++
32 lines
1.1 KiB
C++
// Copyright (c) 2020 The Bitcoin Core developers
|
|
// Distributed under the MIT software license, see the accompanying
|
|
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
|
|
|
|
#include <key.h>
|
|
#include <secp256k1.h>
|
|
#include <test/fuzz/FuzzedDataProvider.h>
|
|
#include <test/fuzz/fuzz.h>
|
|
#include <test/fuzz/util.h>
|
|
|
|
#include <cstdint>
|
|
#include <vector>
|
|
|
|
bool SigHasLowR(const secp256k1_ecdsa_signature* sig);
|
|
int ecdsa_signature_parse_der_lax(secp256k1_ecdsa_signature* sig, const unsigned char* input, size_t inputlen);
|
|
|
|
FUZZ_TARGET(secp256k1_ecdsa_signature_parse_der_lax)
|
|
{
|
|
FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
|
|
const std::vector<uint8_t> signature_bytes = ConsumeRandomLengthByteVector(fuzzed_data_provider);
|
|
if (signature_bytes.data() == nullptr) {
|
|
return;
|
|
}
|
|
secp256k1_ecdsa_signature sig_der_lax;
|
|
const bool parsed_der_lax = ecdsa_signature_parse_der_lax(&sig_der_lax, signature_bytes.data(), signature_bytes.size()) == 1;
|
|
if (parsed_der_lax) {
|
|
ECC_Start();
|
|
(void)SigHasLowR(&sig_der_lax);
|
|
ECC_Stop();
|
|
}
|
|
}
|