text: // Copyright (c) 2020 The Tokyocoin Core developers
  // Distributed under the MIT software license, see the accompanying
  // file COPYING or http://www.opensource.org/licenses/mit-license.php.
  
  #include <crypto/aes.h>
  #include <test/fuzz/FuzzedDataProvider.h>
  #include <test/fuzz/fuzz.h>
  #include <test/fuzz/util.h>
  
  #include <cassert>
  #include <cstdint>
  #include <vector>
  
  void test_one_input(const std::vector<uint8_t>& buffer)
  {
      FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
      const std::vector<uint8_t> key = ConsumeFixedLengthByteVector(fuzzed_data_provider, AES256_KEYSIZE);
      const std::vector<uint8_t> iv = ConsumeFixedLengthByteVector(fuzzed_data_provider, AES_BLOCKSIZE);
      const bool pad = fuzzed_data_provider.ConsumeBool();
  
      AES256CBCEncrypt encrypt{key.data(), iv.data(), pad};
      AES256CBCDecrypt decrypt{key.data(), iv.data(), pad};
  
      while (fuzzed_data_provider.ConsumeBool()) {
          const std::vector<uint8_t> plaintext = ConsumeRandomLengthByteVector(fuzzed_data_provider);
          std::vector<uint8_t> ciphertext(plaintext.size() + AES_BLOCKSIZE);
          const int encrypt_ret = encrypt.Encrypt(plaintext.data(), plaintext.size(), ciphertext.data());
          ciphertext.resize(encrypt_ret);
          std::vector<uint8_t> decrypted_plaintext(ciphertext.size());
          const int decrypt_ret = decrypt.Decrypt(ciphertext.data(), ciphertext.size(), decrypted_plaintext.data());
          decrypted_plaintext.resize(decrypt_ret);
          assert(decrypted_plaintext == plaintext || (!pad && plaintext.size() % AES_BLOCKSIZE != 0 && encrypt_ret == 0 && decrypt_ret == 0));
      }
  }
  