1  // Copyright (c) 2020-present 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 <chainparams.h>
 6  #include <key_io.h>
 7  #include <test/fuzz/fuzz.h>
 8  #include <util/chaintype.h>
 9  
10  #include <cassert>
11  #include <cstdint>
12  #include <string>
13  #include <vector>
14  
15  void initialize_key_io()
16  {
17      static ECC_Context ecc_context{};
18      SelectParams(ChainType::MAIN);
19  }
20  
21  FUZZ_TARGET(key_io, .init = initialize_key_io)
22  {
23      const std::string random_string(buffer.begin(), buffer.end());
24  
25      const CKey key = DecodeSecret(random_string);
26      if (key.IsValid()) {
27          assert(key == DecodeSecret(EncodeSecret(key)));
28      }
29  
30      const CExtKey ext_key = DecodeExtKey(random_string);
31      if (ext_key.key.size() == 32) {
32          assert(ext_key == DecodeExtKey(EncodeExtKey(ext_key)));
33      }
34  
35      const CExtPubKey ext_pub_key = DecodeExtPubKey(random_string);
36      if (ext_pub_key.pubkey.size() == CPubKey::COMPRESSED_SIZE) {
37          assert(ext_pub_key == DecodeExtPubKey(EncodeExtPubKey(ext_pub_key)));
38      }
39  }