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/aes.h>
6 #include <test/fuzz/FuzzedDataProvider.h>
7 #include <test/fuzz/fuzz.h>
8 #include <test/fuzz/util.h>
9 
10 #include <cassert>
11 #include <cstdint>
12 #include <vector>
13 
test_one_input(const std::vector<uint8_t> & buffer)14 void test_one_input(const std::vector<uint8_t>& buffer)
15 {
16     FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
17     const std::vector<uint8_t> key = ConsumeFixedLengthByteVector(fuzzed_data_provider, AES256_KEYSIZE);
18 
19     AES256Encrypt encrypt{key.data()};
20     AES256Decrypt decrypt{key.data()};
21 
22     while (fuzzed_data_provider.ConsumeBool()) {
23         const std::vector<uint8_t> plaintext = ConsumeFixedLengthByteVector(fuzzed_data_provider, AES_BLOCKSIZE);
24         std::vector<uint8_t> ciphertext(AES_BLOCKSIZE);
25         encrypt.Encrypt(ciphertext.data(), plaintext.data());
26         std::vector<uint8_t> decrypted_plaintext(AES_BLOCKSIZE);
27         decrypt.Decrypt(decrypted_plaintext.data(), ciphertext.data());
28         assert(decrypted_plaintext == plaintext);
29     }
30 }
31