1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
|
// Copyright (c) 2020-2021 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include <chainparams.h>
#include <key.h>
#include <psbt.h>
#include <pubkey.h>
#include <script/keyorigin.h>
#include <script/sign.h>
#include <script/signingprovider.h>
#include <streams.h>
#include <test/fuzz/FuzzedDataProvider.h>
#include <test/fuzz/fuzz.h>
#include <test/fuzz/util.h>
#include <test/util/transaction_utils.h>
#include <util/chaintype.h>
#include <util/translation.h>
#include <cassert>
#include <cstdint>
#include <iostream>
#include <map>
#include <optional>
#include <string>
#include <vector>
void initialize_script_sign()
{
static ECC_Context ecc_context{};
SelectParams(ChainType::REGTEST);
}
FUZZ_TARGET(script_sign, .init = initialize_script_sign)
{
FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
const std::vector<uint8_t> key = ConsumeRandomLengthByteVector(fuzzed_data_provider, 128);
{
DataStream random_data_stream{ConsumeDataStream(fuzzed_data_provider)};
std::map<CPubKey, KeyOriginInfo> hd_keypaths;
try {
DeserializeHDKeypaths(random_data_stream, key, hd_keypaths);
} catch (const std::ios_base::failure&) {
}
DataStream serialized{};
SerializeHDKeypaths(serialized, hd_keypaths, CompactSizeWriter(fuzzed_data_provider.ConsumeIntegral<uint8_t>()));
}
{
std::map<CPubKey, KeyOriginInfo> hd_keypaths;
LIMITED_WHILE(fuzzed_data_provider.ConsumeBool(), 10000) {
const std::optional<CPubKey> pub_key = ConsumeDeserializable<CPubKey>(fuzzed_data_provider);
if (!pub_key) {
break;
}
const std::optional<KeyOriginInfo> key_origin_info = ConsumeDeserializable<KeyOriginInfo>(fuzzed_data_provider);
if (!key_origin_info) {
break;
}
hd_keypaths[*pub_key] = *key_origin_info;
}
DataStream serialized{};
try {
SerializeHDKeypaths(serialized, hd_keypaths, CompactSizeWriter(fuzzed_data_provider.ConsumeIntegral<uint8_t>()));
} catch (const std::ios_base::failure&) {
}
std::map<CPubKey, KeyOriginInfo> deserialized_hd_keypaths;
try {
DeserializeHDKeypaths(serialized, key, hd_keypaths);
} catch (const std::ios_base::failure&) {
}
assert(hd_keypaths.size() >= deserialized_hd_keypaths.size());
}
{
SignatureData signature_data_1{ConsumeScript(fuzzed_data_provider)};
SignatureData signature_data_2{ConsumeScript(fuzzed_data_provider)};
signature_data_1.MergeSignatureData(signature_data_2);
}
FillableSigningProvider provider;
CKey k = ConsumePrivateKey(fuzzed_data_provider);
if (k.IsValid()) {
provider.AddKey(k);
}
{
const std::optional<CMutableTransaction> mutable_transaction = ConsumeDeserializable<CMutableTransaction>(fuzzed_data_provider, TX_WITH_WITNESS);
const std::optional<CTxOut> tx_out = ConsumeDeserializable<CTxOut>(fuzzed_data_provider);
const unsigned int n_in = fuzzed_data_provider.ConsumeIntegral<unsigned int>();
if (mutable_transaction && tx_out && mutable_transaction->vin.size() > n_in) {
SignatureData signature_data_1 = DataFromTransaction(*mutable_transaction, n_in, *tx_out);
CTxIn input;
UpdateInput(input, signature_data_1);
const CScript script = ConsumeScript(fuzzed_data_provider);
SignatureData signature_data_2{script};
signature_data_1.MergeSignatureData(signature_data_2);
}
if (mutable_transaction) {
CTransaction tx_from{*mutable_transaction};
CMutableTransaction tx_to;
const std::optional<CMutableTransaction> opt_tx_to = ConsumeDeserializable<CMutableTransaction>(fuzzed_data_provider, TX_WITH_WITNESS);
if (opt_tx_to) {
tx_to = *opt_tx_to;
}
CMutableTransaction script_tx_to = tx_to;
CMutableTransaction sign_transaction_tx_to = tx_to;
if (n_in < tx_to.vin.size() && tx_to.vin[n_in].prevout.n < tx_from.vout.size()) {
SignatureData empty;
(void)SignSignature(provider, tx_from, tx_to, n_in, fuzzed_data_provider.ConsumeIntegral<int>(), empty);
}
if (n_in < script_tx_to.vin.size()) {
SignatureData empty;
(void)SignSignature(provider, ConsumeScript(fuzzed_data_provider), script_tx_to, n_in, ConsumeMoney(fuzzed_data_provider), fuzzed_data_provider.ConsumeIntegral<int>(), empty);
MutableTransactionSignatureCreator signature_creator{tx_to, n_in, ConsumeMoney(fuzzed_data_provider), fuzzed_data_provider.ConsumeIntegral<int>()};
std::vector<unsigned char> vch_sig;
CKeyID address;
if (fuzzed_data_provider.ConsumeBool()) {
if (k.IsValid()) {
address = k.GetPubKey().GetID();
}
} else {
address = CKeyID{ConsumeUInt160(fuzzed_data_provider)};
}
(void)signature_creator.CreateSig(provider, vch_sig, address, ConsumeScript(fuzzed_data_provider), fuzzed_data_provider.PickValueInArray({SigVersion::BASE, SigVersion::WITNESS_V0}));
}
std::map<COutPoint, Coin> coins{ConsumeCoins(fuzzed_data_provider)};
std::map<int, bilingual_str> input_errors;
(void)SignTransaction(sign_transaction_tx_to, &provider, coins, fuzzed_data_provider.ConsumeIntegral<int>(), input_errors);
}
}
{
SignatureData signature_data_1;
(void)ProduceSignature(provider, DUMMY_SIGNATURE_CREATOR, ConsumeScript(fuzzed_data_provider), signature_data_1);
SignatureData signature_data_2;
(void)ProduceSignature(provider, DUMMY_MAXIMUM_SIGNATURE_CREATOR, ConsumeScript(fuzzed_data_provider), signature_data_2);
}
}
|
