mirror of https://github.com/bitcoin/bitcoin
306 lines
11 KiB
C++
306 lines
11 KiB
C++
// Copyright (c) 2020-2022 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include <chainparams.h>
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#include <chainparamsbase.h>
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#include <key.h>
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#include <key_io.h>
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#include <outputtype.h>
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#include <policy/policy.h>
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#include <pubkey.h>
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#include <rpc/util.h>
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#include <script/keyorigin.h>
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#include <script/script.h>
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#include <script/sign.h>
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#include <script/signingprovider.h>
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#include <script/standard.h>
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#include <streams.h>
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#include <test/fuzz/fuzz.h>
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#include <util/strencodings.h>
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#include <cassert>
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#include <cstdint>
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#include <numeric>
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#include <string>
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#include <vector>
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void initialize_key()
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{
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ECC_Start();
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SelectParams(CBaseChainParams::REGTEST);
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}
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FUZZ_TARGET_INIT(key, initialize_key)
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{
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const CKey key = [&] {
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CKey k;
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k.Set(buffer.begin(), buffer.end(), true);
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return k;
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}();
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if (!key.IsValid()) {
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return;
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}
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{
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assert(key.begin() + key.size() == key.end());
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assert(key.IsCompressed());
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assert(key.size() == 32);
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assert(DecodeSecret(EncodeSecret(key)) == key);
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}
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{
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CKey invalid_key;
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assert(!(invalid_key == key));
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assert(!invalid_key.IsCompressed());
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assert(!invalid_key.IsValid());
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assert(invalid_key.size() == 0);
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}
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{
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CKey uncompressed_key;
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uncompressed_key.Set(buffer.begin(), buffer.end(), false);
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assert(!(uncompressed_key == key));
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assert(!uncompressed_key.IsCompressed());
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assert(key.size() == 32);
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assert(uncompressed_key.begin() + uncompressed_key.size() == uncompressed_key.end());
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assert(uncompressed_key.IsValid());
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}
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{
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CKey copied_key;
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copied_key.Set(key.begin(), key.end(), key.IsCompressed());
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assert(copied_key == key);
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}
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{
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CKey negated_key = key;
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negated_key.Negate();
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assert(negated_key.IsValid());
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assert(!(negated_key == key));
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negated_key.Negate();
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assert(negated_key == key);
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}
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const uint256 random_uint256 = Hash(buffer);
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{
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CKey child_key;
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ChainCode child_chaincode;
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const bool ok = key.Derive(child_key, child_chaincode, 0, random_uint256);
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assert(ok);
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assert(child_key.IsValid());
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assert(!(child_key == key));
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assert(child_chaincode != random_uint256);
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}
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const CPubKey pubkey = key.GetPubKey();
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{
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assert(pubkey.size() == 33);
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assert(key.VerifyPubKey(pubkey));
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assert(pubkey.GetHash() != random_uint256);
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assert(pubkey.begin() + pubkey.size() == pubkey.end());
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assert(pubkey.data() == pubkey.begin());
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assert(pubkey.IsCompressed());
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assert(pubkey.IsValid());
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assert(pubkey.IsFullyValid());
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assert(HexToPubKey(HexStr(pubkey)) == pubkey);
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assert(GetAllDestinationsForKey(pubkey).size() == 3);
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}
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{
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CDataStream data_stream{SER_NETWORK, INIT_PROTO_VERSION};
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pubkey.Serialize(data_stream);
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CPubKey pubkey_deserialized;
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pubkey_deserialized.Unserialize(data_stream);
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assert(pubkey_deserialized == pubkey);
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}
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{
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const CScript tx_pubkey_script = GetScriptForRawPubKey(pubkey);
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assert(!tx_pubkey_script.IsPayToScriptHash());
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assert(!tx_pubkey_script.IsPayToWitnessScriptHash());
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assert(!tx_pubkey_script.IsPushOnly());
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assert(!tx_pubkey_script.IsUnspendable());
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assert(tx_pubkey_script.HasValidOps());
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assert(tx_pubkey_script.size() == 35);
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const CScript tx_multisig_script = GetScriptForMultisig(1, {pubkey});
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assert(!tx_multisig_script.IsPayToScriptHash());
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assert(!tx_multisig_script.IsPayToWitnessScriptHash());
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assert(!tx_multisig_script.IsPushOnly());
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assert(!tx_multisig_script.IsUnspendable());
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assert(tx_multisig_script.HasValidOps());
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assert(tx_multisig_script.size() == 37);
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FillableSigningProvider fillable_signing_provider;
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assert(!IsSegWitOutput(fillable_signing_provider, tx_pubkey_script));
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assert(!IsSegWitOutput(fillable_signing_provider, tx_multisig_script));
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assert(fillable_signing_provider.GetKeys().size() == 0);
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assert(!fillable_signing_provider.HaveKey(pubkey.GetID()));
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const bool ok_add_key = fillable_signing_provider.AddKey(key);
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assert(ok_add_key);
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assert(fillable_signing_provider.HaveKey(pubkey.GetID()));
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FillableSigningProvider fillable_signing_provider_pub;
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assert(!fillable_signing_provider_pub.HaveKey(pubkey.GetID()));
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const bool ok_add_key_pubkey = fillable_signing_provider_pub.AddKeyPubKey(key, pubkey);
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assert(ok_add_key_pubkey);
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assert(fillable_signing_provider_pub.HaveKey(pubkey.GetID()));
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TxoutType which_type_tx_pubkey;
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const bool is_standard_tx_pubkey = IsStandard(tx_pubkey_script, std::nullopt, which_type_tx_pubkey);
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assert(is_standard_tx_pubkey);
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assert(which_type_tx_pubkey == TxoutType::PUBKEY);
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TxoutType which_type_tx_multisig;
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const bool is_standard_tx_multisig = IsStandard(tx_multisig_script, std::nullopt, which_type_tx_multisig);
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assert(is_standard_tx_multisig);
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assert(which_type_tx_multisig == TxoutType::MULTISIG);
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std::vector<std::vector<unsigned char>> v_solutions_ret_tx_pubkey;
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const TxoutType outtype_tx_pubkey = Solver(tx_pubkey_script, v_solutions_ret_tx_pubkey);
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assert(outtype_tx_pubkey == TxoutType::PUBKEY);
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assert(v_solutions_ret_tx_pubkey.size() == 1);
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assert(v_solutions_ret_tx_pubkey[0].size() == 33);
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std::vector<std::vector<unsigned char>> v_solutions_ret_tx_multisig;
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const TxoutType outtype_tx_multisig = Solver(tx_multisig_script, v_solutions_ret_tx_multisig);
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assert(outtype_tx_multisig == TxoutType::MULTISIG);
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assert(v_solutions_ret_tx_multisig.size() == 3);
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assert(v_solutions_ret_tx_multisig[0].size() == 1);
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assert(v_solutions_ret_tx_multisig[1].size() == 33);
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assert(v_solutions_ret_tx_multisig[2].size() == 1);
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OutputType output_type{};
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const CTxDestination tx_destination = GetDestinationForKey(pubkey, output_type);
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assert(output_type == OutputType::LEGACY);
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assert(IsValidDestination(tx_destination));
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assert(CTxDestination{PKHash{pubkey}} == tx_destination);
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const CScript script_for_destination = GetScriptForDestination(tx_destination);
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assert(script_for_destination.size() == 25);
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const std::string destination_address = EncodeDestination(tx_destination);
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assert(DecodeDestination(destination_address) == tx_destination);
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const CPubKey pubkey_from_address_string = AddrToPubKey(fillable_signing_provider, destination_address);
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assert(pubkey_from_address_string == pubkey);
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CKeyID key_id = pubkey.GetID();
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assert(!key_id.IsNull());
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assert(key_id == CKeyID{key_id});
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assert(key_id == GetKeyForDestination(fillable_signing_provider, tx_destination));
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CPubKey pubkey_out;
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const bool ok_get_pubkey = fillable_signing_provider.GetPubKey(key_id, pubkey_out);
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assert(ok_get_pubkey);
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CKey key_out;
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const bool ok_get_key = fillable_signing_provider.GetKey(key_id, key_out);
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assert(ok_get_key);
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assert(fillable_signing_provider.GetKeys().size() == 1);
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assert(fillable_signing_provider.HaveKey(key_id));
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KeyOriginInfo key_origin_info;
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const bool ok_get_key_origin = fillable_signing_provider.GetKeyOrigin(key_id, key_origin_info);
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assert(!ok_get_key_origin);
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}
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{
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const std::vector<unsigned char> vch_pubkey{pubkey.begin(), pubkey.end()};
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assert(CPubKey::ValidSize(vch_pubkey));
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assert(!CPubKey::ValidSize({pubkey.begin(), pubkey.begin() + pubkey.size() - 1}));
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const CPubKey pubkey_ctor_1{vch_pubkey};
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assert(pubkey == pubkey_ctor_1);
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const CPubKey pubkey_ctor_2{vch_pubkey.begin(), vch_pubkey.end()};
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assert(pubkey == pubkey_ctor_2);
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CPubKey pubkey_set;
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pubkey_set.Set(vch_pubkey.begin(), vch_pubkey.end());
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assert(pubkey == pubkey_set);
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}
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{
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const CPubKey invalid_pubkey{};
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assert(!invalid_pubkey.IsValid());
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assert(!invalid_pubkey.IsFullyValid());
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assert(!(pubkey == invalid_pubkey));
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assert(pubkey != invalid_pubkey);
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assert(pubkey < invalid_pubkey);
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}
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{
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// Cover CPubKey's operator[](unsigned int pos)
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unsigned int sum = 0;
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for (size_t i = 0; i < pubkey.size(); ++i) {
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sum += pubkey[i];
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}
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assert(std::accumulate(pubkey.begin(), pubkey.end(), 0U) == sum);
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}
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{
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CPubKey decompressed_pubkey = pubkey;
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assert(decompressed_pubkey.IsCompressed());
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const bool ok = decompressed_pubkey.Decompress();
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assert(ok);
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assert(!decompressed_pubkey.IsCompressed());
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assert(decompressed_pubkey.size() == 65);
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}
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{
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std::vector<unsigned char> vch_sig;
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const bool ok = key.Sign(random_uint256, vch_sig, false);
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assert(ok);
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assert(pubkey.Verify(random_uint256, vch_sig));
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assert(CPubKey::CheckLowS(vch_sig));
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const std::vector<unsigned char> vch_invalid_sig{vch_sig.begin(), vch_sig.begin() + vch_sig.size() - 1};
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assert(!pubkey.Verify(random_uint256, vch_invalid_sig));
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assert(!CPubKey::CheckLowS(vch_invalid_sig));
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}
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{
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std::vector<unsigned char> vch_compact_sig;
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const bool ok_sign_compact = key.SignCompact(random_uint256, vch_compact_sig);
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assert(ok_sign_compact);
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CPubKey recover_pubkey;
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const bool ok_recover_compact = recover_pubkey.RecoverCompact(random_uint256, vch_compact_sig);
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assert(ok_recover_compact);
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assert(recover_pubkey == pubkey);
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}
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{
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CPubKey child_pubkey;
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ChainCode child_chaincode;
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const bool ok = pubkey.Derive(child_pubkey, child_chaincode, 0, random_uint256);
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assert(ok);
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assert(child_pubkey != pubkey);
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assert(child_pubkey.IsCompressed());
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assert(child_pubkey.IsFullyValid());
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assert(child_pubkey.IsValid());
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assert(child_pubkey.size() == 33);
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assert(child_chaincode != random_uint256);
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}
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const CPrivKey priv_key = key.GetPrivKey();
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{
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for (const bool skip_check : {true, false}) {
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CKey loaded_key;
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const bool ok = loaded_key.Load(priv_key, pubkey, skip_check);
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assert(ok);
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assert(key == loaded_key);
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}
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}
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}
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