1 // Copyright (c) 2020 The Bitcoin Core developers 2 // Distributed under the MIT software license, see the accompanying 3 // file COPYING or http://www.opensource.org/licenses/mit-license.php. 4 5 #include <crypto/hkdf_sha256_32.h> 6 #include <test/fuzz/FuzzedDataProvider.h> 7 #include <test/fuzz/fuzz.h> 8 #include <test/fuzz/util.h> 9 10 #include <cstdint> 11 #include <string> 12 #include <vector> 13 test_one_input(const std::vector<uint8_t> & buffer)14void test_one_input(const std::vector<uint8_t>& buffer) 15 { 16 FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()}; 17 18 const std::vector<uint8_t> initial_key_material = ConsumeRandomLengthByteVector(fuzzed_data_provider); 19 20 CHKDF_HMAC_SHA256_L32 hkdf_hmac_sha256_l32(initial_key_material.data(), initial_key_material.size(), fuzzed_data_provider.ConsumeRandomLengthString(1024)); 21 while (fuzzed_data_provider.ConsumeBool()) { 22 std::vector<uint8_t> out(32); 23 hkdf_hmac_sha256_l32.Expand32(fuzzed_data_provider.ConsumeRandomLengthString(128), out.data()); 24 } 25 } 26