Bitcoin Core  24.99.0
P2P Digital Currency
Go to the documentation of this file.
1 // Copyright (c) 2020 The Bitcoin Core developers
2 // Distributed under the MIT software license, see the accompanying
3 // file COPYING or
5 #include <chainparams.h>
6 #include <key_io.h>
8 #include <test/fuzz/fuzz.h>
9 #include <test/fuzz/util.h>
10 #include <util/message.h>
11 #include <util/strencodings.h>
13 #include <cassert>
14 #include <cstdint>
15 #include <iostream>
16 #include <string>
17 #include <vector>
20 {
21  ECC_Start();
23 }
26 {
27  FuzzedDataProvider fuzzed_data_provider(, buffer.size());
28  const std::string random_message = fuzzed_data_provider.ConsumeRandomLengthString(1024);
29  {
30  const std::vector<uint8_t> random_bytes = ConsumeRandomLengthByteVector(fuzzed_data_provider);
31  CKey private_key;
32  private_key.Set(random_bytes.begin(), random_bytes.end(), fuzzed_data_provider.ConsumeBool());
33  std::string signature;
34  const bool message_signed = MessageSign(private_key, random_message, signature);
35  if (private_key.IsValid()) {
36  assert(message_signed);
37  const MessageVerificationResult verification_result = MessageVerify(EncodeDestination(PKHash(private_key.GetPubKey().GetID())), signature, random_message);
38  assert(verification_result == MessageVerificationResult::OK);
39  }
40  }
41  {
42  (void)MessageHash(random_message);
43  (void)MessageVerify(fuzzed_data_provider.ConsumeRandomLengthString(1024), fuzzed_data_provider.ConsumeRandomLengthString(1024), random_message);
45  }
46 }
Definition: key.cpp:391
void SelectParams(const std::string &network)
Sets the params returned by Params() to those for the given chain name.
static const std::string REGTEST
An encapsulated private key.
Definition: key.h:27
bool IsValid() const
Check whether this private key is valid.
Definition: key.h:93
CPubKey GetPubKey() const
Compute the public key from a private key.
Definition: key.cpp:187
void Set(const T pbegin, const T pend, bool fCompressedIn)
Initialize using begin and end iterators to byte data.
Definition: key.h:73
CKeyID GetID() const
Get the KeyID of this public key (hash of its serialization)
Definition: pubkey.h:164
std::string ConsumeRandomLengthString(size_t max_length)
T PickValueInArray(const T(&array)[size])
std::string EncodeDestination(const CTxDestination &dest)
Definition: key_io.cpp:276
@ OK
No error.
The result of a signed message verification.
Definition: message.h:23
@ OK
The message verification was successful.
FUZZ_TARGET_INIT(message, initialize_message)
Definition: message.cpp:25
void initialize_message()
Definition: message.cpp:19
std::vector< uint8_t > ConsumeRandomLengthByteVector(FuzzedDataProvider &fuzzed_data_provider, const std::optional< size_t > &max_length=std::nullopt) noexcept
Definition: util.h:57
uint256 MessageHash(const std::string &message)
Hashes a message for signing and verification in a manner that prevents inadvertently signing a trans...
Definition: message.cpp:74
bool MessageSign(const CKey &privkey, const std::string &message, std::string &signature)
Sign a message.
Definition: message.cpp:58
std::string SigningResultString(const SigningResult res)
Definition: message.cpp:82
MessageVerificationResult MessageVerify(const std::string &address, const std::string &signature, const std::string &message)
Verify a signed message.
Definition: message.cpp:27