Bitcoin Core  28.1.0
P2P Digital Currency
script_standard_tests.cpp
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1 // Copyright (c) 2017-2022 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 <test/data/bip341_wallet_vectors.json.h>
6 
7 #include <key.h>
8 #include <key_io.h>
9 #include <script/script.h>
10 #include <script/signingprovider.h>
11 #include <script/solver.h>
12 #include <test/util/setup_common.h>
13 #include <util/strencodings.h>
14 
15 #include <boost/test/unit_test.hpp>
16 
17 #include <univalue.h>
18 
19 
20 BOOST_FIXTURE_TEST_SUITE(script_standard_tests, BasicTestingSetup)
21 
22 BOOST_AUTO_TEST_CASE(dest_default_is_no_dest)
23 {
24  CTxDestination dest;
25  BOOST_CHECK(!IsValidDestination(dest));
26 }
27 
28 BOOST_AUTO_TEST_CASE(script_standard_Solver_success)
29 {
30  CKey keys[3];
31  CPubKey pubkeys[3];
32  for (int i = 0; i < 3; i++) {
33  keys[i].MakeNewKey(true);
34  pubkeys[i] = keys[i].GetPubKey();
35  }
36 
37  CScript s;
38  std::vector<std::vector<unsigned char> > solutions;
39 
40  // TxoutType::PUBKEY
41  s.clear();
42  s << ToByteVector(pubkeys[0]) << OP_CHECKSIG;
43  BOOST_CHECK_EQUAL(Solver(s, solutions), TxoutType::PUBKEY);
44  BOOST_CHECK_EQUAL(solutions.size(), 1U);
45  BOOST_CHECK(solutions[0] == ToByteVector(pubkeys[0]));
46 
47  // TxoutType::PUBKEYHASH
48  s.clear();
49  s << OP_DUP << OP_HASH160 << ToByteVector(pubkeys[0].GetID()) << OP_EQUALVERIFY << OP_CHECKSIG;
50  BOOST_CHECK_EQUAL(Solver(s, solutions), TxoutType::PUBKEYHASH);
51  BOOST_CHECK_EQUAL(solutions.size(), 1U);
52  BOOST_CHECK(solutions[0] == ToByteVector(pubkeys[0].GetID()));
53 
54  // TxoutType::SCRIPTHASH
55  CScript redeemScript(s); // initialize with leftover P2PKH script
56  s.clear();
57  s << OP_HASH160 << ToByteVector(CScriptID(redeemScript)) << OP_EQUAL;
58  BOOST_CHECK_EQUAL(Solver(s, solutions), TxoutType::SCRIPTHASH);
59  BOOST_CHECK_EQUAL(solutions.size(), 1U);
60  BOOST_CHECK(solutions[0] == ToByteVector(CScriptID(redeemScript)));
61 
62  // TxoutType::MULTISIG
63  s.clear();
64  s << OP_1 <<
65  ToByteVector(pubkeys[0]) <<
66  ToByteVector(pubkeys[1]) <<
67  OP_2 << OP_CHECKMULTISIG;
68  BOOST_CHECK_EQUAL(Solver(s, solutions), TxoutType::MULTISIG);
69  BOOST_CHECK_EQUAL(solutions.size(), 4U);
70  BOOST_CHECK(solutions[0] == std::vector<unsigned char>({1}));
71  BOOST_CHECK(solutions[1] == ToByteVector(pubkeys[0]));
72  BOOST_CHECK(solutions[2] == ToByteVector(pubkeys[1]));
73  BOOST_CHECK(solutions[3] == std::vector<unsigned char>({2}));
74 
75  s.clear();
76  s << OP_2 <<
77  ToByteVector(pubkeys[0]) <<
78  ToByteVector(pubkeys[1]) <<
79  ToByteVector(pubkeys[2]) <<
80  OP_3 << OP_CHECKMULTISIG;
81  BOOST_CHECK_EQUAL(Solver(s, solutions), TxoutType::MULTISIG);
82  BOOST_CHECK_EQUAL(solutions.size(), 5U);
83  BOOST_CHECK(solutions[0] == std::vector<unsigned char>({2}));
84  BOOST_CHECK(solutions[1] == ToByteVector(pubkeys[0]));
85  BOOST_CHECK(solutions[2] == ToByteVector(pubkeys[1]));
86  BOOST_CHECK(solutions[3] == ToByteVector(pubkeys[2]));
87  BOOST_CHECK(solutions[4] == std::vector<unsigned char>({3}));
88 
89  // TxoutType::NULL_DATA
90  s.clear();
91  s << OP_RETURN <<
92  std::vector<unsigned char>({0}) <<
93  std::vector<unsigned char>({75}) <<
94  std::vector<unsigned char>({255});
95  BOOST_CHECK_EQUAL(Solver(s, solutions), TxoutType::NULL_DATA);
96  BOOST_CHECK_EQUAL(solutions.size(), 0U);
97 
98  // TxoutType::WITNESS_V0_KEYHASH
99  s.clear();
100  s << OP_0 << ToByteVector(pubkeys[0].GetID());
101  BOOST_CHECK_EQUAL(Solver(s, solutions), TxoutType::WITNESS_V0_KEYHASH);
102  BOOST_CHECK_EQUAL(solutions.size(), 1U);
103  BOOST_CHECK(solutions[0] == ToByteVector(pubkeys[0].GetID()));
104 
105  // TxoutType::WITNESS_V0_SCRIPTHASH
106  uint256 scriptHash;
107  CSHA256().Write(redeemScript.data(), redeemScript.size())
108  .Finalize(scriptHash.begin());
109 
110  s.clear();
111  s << OP_0 << ToByteVector(scriptHash);
112  BOOST_CHECK_EQUAL(Solver(s, solutions), TxoutType::WITNESS_V0_SCRIPTHASH);
113  BOOST_CHECK_EQUAL(solutions.size(), 1U);
114  BOOST_CHECK(solutions[0] == ToByteVector(scriptHash));
115 
116  // TxoutType::WITNESS_V1_TAPROOT
117  s.clear();
118  s << OP_1 << ToByteVector(uint256::ZERO);
119  BOOST_CHECK_EQUAL(Solver(s, solutions), TxoutType::WITNESS_V1_TAPROOT);
120  BOOST_CHECK_EQUAL(solutions.size(), 1U);
121  BOOST_CHECK(solutions[0] == ToByteVector(uint256::ZERO));
122 
123  // TxoutType::WITNESS_UNKNOWN
124  s.clear();
125  s << OP_16 << ToByteVector(uint256::ONE);
126  BOOST_CHECK_EQUAL(Solver(s, solutions), TxoutType::WITNESS_UNKNOWN);
127  BOOST_CHECK_EQUAL(solutions.size(), 2U);
128  BOOST_CHECK(solutions[0] == std::vector<unsigned char>{16});
129  BOOST_CHECK(solutions[1] == ToByteVector(uint256::ONE));
130 
131  // TxoutType::ANCHOR
132  std::vector<unsigned char> anchor_bytes{0x4e, 0x73};
133  s.clear();
134  s << OP_1 << anchor_bytes;
135  BOOST_CHECK_EQUAL(Solver(s, solutions), TxoutType::ANCHOR);
136  BOOST_CHECK(solutions.empty());
137 
138  // Sanity-check IsPayToAnchor
139  int version{-1};
140  std::vector<unsigned char> witness_program;
141  BOOST_CHECK(s.IsPayToAnchor());
142  BOOST_CHECK(s.IsWitnessProgram(version, witness_program));
143  BOOST_CHECK(CScript::IsPayToAnchor(version, witness_program));
144 
145  // TxoutType::NONSTANDARD
146  s.clear();
147  s << OP_9 << OP_ADD << OP_11 << OP_EQUAL;
148  BOOST_CHECK_EQUAL(Solver(s, solutions), TxoutType::NONSTANDARD);
149 }
150 
151 BOOST_AUTO_TEST_CASE(script_standard_Solver_failure)
152 {
153  CKey key = GenerateRandomKey();
154  CPubKey pubkey = key.GetPubKey();
155 
156  CScript s;
157  std::vector<std::vector<unsigned char> > solutions;
158 
159  // TxoutType::PUBKEY with incorrectly sized pubkey
160  s.clear();
161  s << std::vector<unsigned char>(30, 0x01) << OP_CHECKSIG;
162  BOOST_CHECK_EQUAL(Solver(s, solutions), TxoutType::NONSTANDARD);
163 
164  // TxoutType::PUBKEYHASH with incorrectly sized key hash
165  s.clear();
166  s << OP_DUP << OP_HASH160 << ToByteVector(pubkey) << OP_EQUALVERIFY << OP_CHECKSIG;
167  BOOST_CHECK_EQUAL(Solver(s, solutions), TxoutType::NONSTANDARD);
168 
169  // TxoutType::SCRIPTHASH with incorrectly sized script hash
170  s.clear();
171  s << OP_HASH160 << std::vector<unsigned char>(21, 0x01) << OP_EQUAL;
172  BOOST_CHECK_EQUAL(Solver(s, solutions), TxoutType::NONSTANDARD);
173 
174  // TxoutType::MULTISIG 0/2
175  s.clear();
176  s << OP_0 << ToByteVector(pubkey) << OP_1 << OP_CHECKMULTISIG;
177  BOOST_CHECK_EQUAL(Solver(s, solutions), TxoutType::NONSTANDARD);
178 
179  // TxoutType::MULTISIG 2/1
180  s.clear();
181  s << OP_2 << ToByteVector(pubkey) << OP_1 << OP_CHECKMULTISIG;
182  BOOST_CHECK_EQUAL(Solver(s, solutions), TxoutType::NONSTANDARD);
183 
184  // TxoutType::MULTISIG n = 2 with 1 pubkey
185  s.clear();
186  s << OP_1 << ToByteVector(pubkey) << OP_2 << OP_CHECKMULTISIG;
187  BOOST_CHECK_EQUAL(Solver(s, solutions), TxoutType::NONSTANDARD);
188 
189  // TxoutType::MULTISIG n = 1 with 0 pubkeys
190  s.clear();
191  s << OP_1 << OP_1 << OP_CHECKMULTISIG;
192  BOOST_CHECK_EQUAL(Solver(s, solutions), TxoutType::NONSTANDARD);
193 
194  // TxoutType::NULL_DATA with other opcodes
195  s.clear();
196  s << OP_RETURN << std::vector<unsigned char>({75}) << OP_ADD;
197  BOOST_CHECK_EQUAL(Solver(s, solutions), TxoutType::NONSTANDARD);
198 
199  // TxoutType::WITNESS_UNKNOWN with incorrect program size
200  s.clear();
201  s << OP_0 << std::vector<unsigned char>(19, 0x01);
202  BOOST_CHECK_EQUAL(Solver(s, solutions), TxoutType::NONSTANDARD);
203 
204  // TxoutType::ANCHOR but wrong witness version
205  s.clear();
206  s << OP_2 << std::vector<unsigned char>{0x4e, 0x73};
207  BOOST_CHECK(!s.IsPayToAnchor());
208  BOOST_CHECK_EQUAL(Solver(s, solutions), TxoutType::WITNESS_UNKNOWN);
209 
210  // TxoutType::ANCHOR but wrong 2-byte data push
211  s.clear();
212  s << OP_1 << std::vector<unsigned char>{0xff, 0xff};
213  BOOST_CHECK(!s.IsPayToAnchor());
214  BOOST_CHECK_EQUAL(Solver(s, solutions), TxoutType::WITNESS_UNKNOWN);
215 }
216 
217 BOOST_AUTO_TEST_CASE(script_standard_ExtractDestination)
218 {
219  CKey key = GenerateRandomKey();
220  CPubKey pubkey = key.GetPubKey();
221 
222  CScript s;
223  CTxDestination address;
224 
225  // TxoutType::PUBKEY
226  s.clear();
227  s << ToByteVector(pubkey) << OP_CHECKSIG;
228  BOOST_CHECK(!ExtractDestination(s, address));
229  BOOST_CHECK(std::get<PubKeyDestination>(address) == PubKeyDestination(pubkey));
230 
231  // TxoutType::PUBKEYHASH
232  s.clear();
233  s << OP_DUP << OP_HASH160 << ToByteVector(pubkey.GetID()) << OP_EQUALVERIFY << OP_CHECKSIG;
234  BOOST_CHECK(ExtractDestination(s, address));
235  BOOST_CHECK(std::get<PKHash>(address) == PKHash(pubkey));
236 
237  // TxoutType::SCRIPTHASH
238  CScript redeemScript(s); // initialize with leftover P2PKH script
239  s.clear();
240  s << OP_HASH160 << ToByteVector(CScriptID(redeemScript)) << OP_EQUAL;
241  BOOST_CHECK(ExtractDestination(s, address));
242  BOOST_CHECK(std::get<ScriptHash>(address) == ScriptHash(redeemScript));
243 
244  // TxoutType::MULTISIG
245  s.clear();
246  s << OP_1 << ToByteVector(pubkey) << OP_1 << OP_CHECKMULTISIG;
247  BOOST_CHECK(!ExtractDestination(s, address));
248 
249  // TxoutType::NULL_DATA
250  s.clear();
251  s << OP_RETURN << std::vector<unsigned char>({75});
252  BOOST_CHECK(!ExtractDestination(s, address));
253 
254  // TxoutType::WITNESS_V0_KEYHASH
255  s.clear();
256  s << OP_0 << ToByteVector(pubkey.GetID());
257  BOOST_CHECK(ExtractDestination(s, address));
258  WitnessV0KeyHash keyhash;
259  CHash160().Write(pubkey).Finalize(keyhash);
260  BOOST_CHECK(std::get<WitnessV0KeyHash>(address) == keyhash);
261 
262  // TxoutType::WITNESS_V0_SCRIPTHASH
263  s.clear();
264  WitnessV0ScriptHash scripthash;
265  CSHA256().Write(redeemScript.data(), redeemScript.size()).Finalize(scripthash.begin());
266  s << OP_0 << ToByteVector(scripthash);
267  BOOST_CHECK(ExtractDestination(s, address));
268  BOOST_CHECK(std::get<WitnessV0ScriptHash>(address) == scripthash);
269 
270  // TxoutType::WITNESS_UNKNOWN with unknown version
271  s.clear();
272  s << OP_1 << ToByteVector(pubkey);
273  BOOST_CHECK(ExtractDestination(s, address));
274  WitnessUnknown unk{1, ToByteVector(pubkey)};
275  BOOST_CHECK(std::get<WitnessUnknown>(address) == unk);
276 }
277 
278 BOOST_AUTO_TEST_CASE(script_standard_GetScriptFor_)
279 {
280  CKey keys[3];
281  CPubKey pubkeys[3];
282  for (int i = 0; i < 3; i++) {
283  keys[i].MakeNewKey(true);
284  pubkeys[i] = keys[i].GetPubKey();
285  }
286 
287  CScript expected, result;
288 
289  // PKHash
290  expected.clear();
291  expected << OP_DUP << OP_HASH160 << ToByteVector(pubkeys[0].GetID()) << OP_EQUALVERIFY << OP_CHECKSIG;
292  result = GetScriptForDestination(PKHash(pubkeys[0]));
293  BOOST_CHECK(result == expected);
294 
295  // CScriptID
296  CScript redeemScript(result);
297  expected.clear();
298  expected << OP_HASH160 << ToByteVector(CScriptID(redeemScript)) << OP_EQUAL;
299  result = GetScriptForDestination(ScriptHash(redeemScript));
300  BOOST_CHECK(result == expected);
301 
302  // CNoDestination
303  expected.clear();
304  result = GetScriptForDestination(CNoDestination());
305  BOOST_CHECK(result == expected);
306 
307  // GetScriptForRawPubKey
308  expected.clear();
309  expected << ToByteVector(pubkeys[0]) << OP_CHECKSIG;
310  result = GetScriptForRawPubKey(pubkeys[0]);
311  BOOST_CHECK(result == expected);
312 
313  // GetScriptForMultisig
314  expected.clear();
315  expected << OP_2 <<
316  ToByteVector(pubkeys[0]) <<
317  ToByteVector(pubkeys[1]) <<
318  ToByteVector(pubkeys[2]) <<
319  OP_3 << OP_CHECKMULTISIG;
320  result = GetScriptForMultisig(2, std::vector<CPubKey>(pubkeys, pubkeys + 3));
321  BOOST_CHECK(result == expected);
322 
323  // WitnessV0KeyHash
324  expected.clear();
325  expected << OP_0 << ToByteVector(pubkeys[0].GetID());
326  result = GetScriptForDestination(WitnessV0KeyHash(Hash160(ToByteVector(pubkeys[0]))));
327  BOOST_CHECK(result == expected);
328  result = GetScriptForDestination(WitnessV0KeyHash(pubkeys[0].GetID()));
329  BOOST_CHECK(result == expected);
330 
331  // WitnessV0ScriptHash (multisig)
332  CScript witnessScript;
333  witnessScript << OP_1 << ToByteVector(pubkeys[0]) << OP_1 << OP_CHECKMULTISIG;
334 
335  uint256 scriptHash;
336  CSHA256().Write(witnessScript.data(), witnessScript.size())
337  .Finalize(scriptHash.begin());
338 
339  expected.clear();
340  expected << OP_0 << ToByteVector(scriptHash);
341  result = GetScriptForDestination(WitnessV0ScriptHash(witnessScript));
342  BOOST_CHECK(result == expected);
343 }
344 
345 BOOST_AUTO_TEST_CASE(script_standard_taproot_builder)
346 {
347  BOOST_CHECK_EQUAL(TaprootBuilder::ValidDepths({}), true);
348  BOOST_CHECK_EQUAL(TaprootBuilder::ValidDepths({0}), true);
349  BOOST_CHECK_EQUAL(TaprootBuilder::ValidDepths({1}), false);
350  BOOST_CHECK_EQUAL(TaprootBuilder::ValidDepths({2}), false);
351  BOOST_CHECK_EQUAL(TaprootBuilder::ValidDepths({0,0}), false);
352  BOOST_CHECK_EQUAL(TaprootBuilder::ValidDepths({0,1}), false);
353  BOOST_CHECK_EQUAL(TaprootBuilder::ValidDepths({0,2}), false);
354  BOOST_CHECK_EQUAL(TaprootBuilder::ValidDepths({1,0}), false);
355  BOOST_CHECK_EQUAL(TaprootBuilder::ValidDepths({1,1}), true);
356  BOOST_CHECK_EQUAL(TaprootBuilder::ValidDepths({1,2}), false);
357  BOOST_CHECK_EQUAL(TaprootBuilder::ValidDepths({2,0}), false);
358  BOOST_CHECK_EQUAL(TaprootBuilder::ValidDepths({2,1}), false);
359  BOOST_CHECK_EQUAL(TaprootBuilder::ValidDepths({2,2}), false);
360  BOOST_CHECK_EQUAL(TaprootBuilder::ValidDepths({0,0,0}), false);
361  BOOST_CHECK_EQUAL(TaprootBuilder::ValidDepths({0,0,1}), false);
362  BOOST_CHECK_EQUAL(TaprootBuilder::ValidDepths({0,0,2}), false);
363  BOOST_CHECK_EQUAL(TaprootBuilder::ValidDepths({0,1,0}), false);
364  BOOST_CHECK_EQUAL(TaprootBuilder::ValidDepths({0,1,1}), false);
365  BOOST_CHECK_EQUAL(TaprootBuilder::ValidDepths({0,1,2}), false);
366  BOOST_CHECK_EQUAL(TaprootBuilder::ValidDepths({0,2,0}), false);
367  BOOST_CHECK_EQUAL(TaprootBuilder::ValidDepths({0,2,1}), false);
368  BOOST_CHECK_EQUAL(TaprootBuilder::ValidDepths({0,2,2}), false);
369  BOOST_CHECK_EQUAL(TaprootBuilder::ValidDepths({1,0,0}), false);
370  BOOST_CHECK_EQUAL(TaprootBuilder::ValidDepths({1,0,1}), false);
371  BOOST_CHECK_EQUAL(TaprootBuilder::ValidDepths({1,0,2}), false);
372  BOOST_CHECK_EQUAL(TaprootBuilder::ValidDepths({1,1,0}), false);
373  BOOST_CHECK_EQUAL(TaprootBuilder::ValidDepths({1,1,1}), false);
374  BOOST_CHECK_EQUAL(TaprootBuilder::ValidDepths({1,1,2}), false);
375  BOOST_CHECK_EQUAL(TaprootBuilder::ValidDepths({1,2,0}), false);
376  BOOST_CHECK_EQUAL(TaprootBuilder::ValidDepths({1,2,1}), false);
377  BOOST_CHECK_EQUAL(TaprootBuilder::ValidDepths({1,2,2}), true);
378  BOOST_CHECK_EQUAL(TaprootBuilder::ValidDepths({2,0,0}), false);
379  BOOST_CHECK_EQUAL(TaprootBuilder::ValidDepths({2,0,1}), false);
380  BOOST_CHECK_EQUAL(TaprootBuilder::ValidDepths({2,0,2}), false);
381  BOOST_CHECK_EQUAL(TaprootBuilder::ValidDepths({2,1,0}), false);
382  BOOST_CHECK_EQUAL(TaprootBuilder::ValidDepths({2,1,1}), false);
383  BOOST_CHECK_EQUAL(TaprootBuilder::ValidDepths({2,1,2}), false);
384  BOOST_CHECK_EQUAL(TaprootBuilder::ValidDepths({2,2,0}), false);
385  BOOST_CHECK_EQUAL(TaprootBuilder::ValidDepths({2,2,1}), true);
386  BOOST_CHECK_EQUAL(TaprootBuilder::ValidDepths({2,2,2}), false);
387  BOOST_CHECK_EQUAL(TaprootBuilder::ValidDepths({2,2,2,3,4,5,6,7,8,9,10,11,12,14,14,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,31,31,31,31,31,31,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,128}), true);
388  BOOST_CHECK_EQUAL(TaprootBuilder::ValidDepths({128,128,127,126,125,124,123,122,121,120,119,118,117,116,115,114,113,112,111,110,109,108,107,106,105,104,103,102,101,100,99,98,97,96,95,94,93,92,91,90,89,88,87,86,85,84,83,82,81,80,79,78,77,76,75,74,73,72,71,70,69,68,67,66,65,64,63,62,61,60,59,58,57,56,55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1}), true);
389  BOOST_CHECK_EQUAL(TaprootBuilder::ValidDepths({129,129,128,127,126,125,124,123,122,121,120,119,118,117,116,115,114,113,112,111,110,109,108,107,106,105,104,103,102,101,100,99,98,97,96,95,94,93,92,91,90,89,88,87,86,85,84,83,82,81,80,79,78,77,76,75,74,73,72,71,70,69,68,67,66,65,64,63,62,61,60,59,58,57,56,55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1}), false);
390 
391  XOnlyPubKey key_inner{ParseHex("79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798")};
392  XOnlyPubKey key_1{ParseHex("c6047f9441ed7d6d3045406e95c07cd85c778e4b8cef3ca7abac09b95c709ee5")};
393  XOnlyPubKey key_2{ParseHex("f9308a019258c31049344f85f89d5229b531c845836f99b08601f113bce036f9")};
394  CScript script_1 = CScript() << ToByteVector(key_1) << OP_CHECKSIG;
395  CScript script_2 = CScript() << ToByteVector(key_2) << OP_CHECKSIG;
396  constexpr uint256 hash_3{"31fe7061656bea2a36aa60a2f7ef940578049273746935d296426dc0afd86b68"};
397 
398  TaprootBuilder builder;
399  BOOST_CHECK(builder.IsValid() && builder.IsComplete());
400  builder.Add(2, script_2, 0xc0);
401  BOOST_CHECK(builder.IsValid() && !builder.IsComplete());
402  builder.AddOmitted(2, hash_3);
403  BOOST_CHECK(builder.IsValid() && !builder.IsComplete());
404  builder.Add(1, script_1, 0xc0);
405  BOOST_CHECK(builder.IsValid() && builder.IsComplete());
406  builder.Finalize(key_inner);
407  BOOST_CHECK(builder.IsValid() && builder.IsComplete());
408  BOOST_CHECK_EQUAL(EncodeDestination(builder.GetOutput()), "bc1pj6gaw944fy0xpmzzu45ugqde4rz7mqj5kj0tg8kmr5f0pjq8vnaqgynnge");
409 }
410 
411 BOOST_AUTO_TEST_CASE(bip341_spk_test_vectors)
412 {
413  using control_set = decltype(TaprootSpendData::scripts)::mapped_type;
414 
415  UniValue tests;
416  tests.read(json_tests::bip341_wallet_vectors);
417 
418  const auto& vectors = tests["scriptPubKey"];
419 
420  for (const auto& vec : vectors.getValues()) {
421  TaprootBuilder spktest;
422  std::map<std::pair<std::vector<unsigned char>, int>, int> scriptposes;
423  std::function<void (const UniValue&, int)> parse_tree = [&](const UniValue& node, int depth) {
424  if (node.isNull()) return;
425  if (node.isObject()) {
426  auto script = ParseHex(node["script"].get_str());
427  int idx = node["id"].getInt<int>();
428  int leaf_version = node["leafVersion"].getInt<int>();
429  scriptposes[{script, leaf_version}] = idx;
430  spktest.Add(depth, script, leaf_version);
431  } else {
432  parse_tree(node[0], depth + 1);
433  parse_tree(node[1], depth + 1);
434  }
435  };
436  parse_tree(vec["given"]["scriptTree"], 0);
437  spktest.Finalize(XOnlyPubKey(ParseHex(vec["given"]["internalPubkey"].get_str())));
438  BOOST_CHECK_EQUAL(HexStr(GetScriptForDestination(spktest.GetOutput())), vec["expected"]["scriptPubKey"].get_str());
439  BOOST_CHECK_EQUAL(EncodeDestination(spktest.GetOutput()), vec["expected"]["bip350Address"].get_str());
440  auto spend_data = spktest.GetSpendData();
441  BOOST_CHECK_EQUAL(vec["intermediary"]["merkleRoot"].isNull(), spend_data.merkle_root.IsNull());
442  if (!spend_data.merkle_root.IsNull()) {
443  BOOST_CHECK_EQUAL(vec["intermediary"]["merkleRoot"].get_str(), HexStr(spend_data.merkle_root));
444  }
445  BOOST_CHECK_EQUAL(spend_data.scripts.size(), scriptposes.size());
446  for (const auto& scriptpos : scriptposes) {
447  BOOST_CHECK(spend_data.scripts[scriptpos.first] == control_set{ParseHex(vec["expected"]["scriptPathControlBlocks"][scriptpos.second].get_str())});
448  }
449  }
450 }
451 
452 BOOST_AUTO_TEST_SUITE_END()
CSHA256::Write
CSHA256 & Write(const unsigned char *data, size_t len)
Definition: sha256.cpp:701
GetScriptForMultisig
CScript GetScriptForMultisig(int nRequired, const std::vector< CPubKey > &keys)
Generate a multisig script.
Definition: solver.cpp:218
json_tests::bip341_wallet_vectors
static const std::string bip341_wallet_vectors
Definition: bip341_wallet_vectors.json.h:3
BaseHash::begin
unsigned char * begin()
Definition: hash_type.h:18
uint256::ONE
static const uint256 ONE
Definition: uint256.h:186
ParseHex
std::vector< Byte > ParseHex(std::string_view hex_str)
Like TryParseHex, but returns an empty vector on invalid input.
Definition: strencodings.h:66
IsValidDestination
bool IsValidDestination(const CTxDestination &dest)
Check whether a CTxDestination corresponds to one with an address.
Definition: addresstype.cpp:171
OP_DUP
Definition: script.h:124
CHash160::Finalize
void Finalize(Span< unsigned char > output)
Definition: hash.h:55
CKey::GetPubKey
CPubKey GetPubKey() const
Compute the public key from a private key.
Definition: key.cpp:182
Solver
TxoutType Solver(const CScript &scriptPubKey, std::vector< std::vector< unsigned char >> &vSolutionsRet)
Parse a scriptPubKey and identify script type for standard scripts.
Definition: solver.cpp:141
UniValue::read
bool read(std::string_view raw)
Definition: univalue_read.cpp:263
OP_ADD
Definition: script.h:160
TaprootBuilder::AddOmitted
TaprootBuilder & AddOmitted(int depth, const uint256 &hash)
Like Add(), but for a Merkle node with a given hash to the tree.
Definition: signingprovider.cpp:379
CScript::IsWitnessProgram
bool IsWitnessProgram(int &version, std::vector< unsigned char > &program) const
Definition: script.cpp:243
OP_0
Definition: script.h:75
CPubKey::GetID
CKeyID GetID() const
Get the KeyID of this public key (hash of its serialization)
Definition: pubkey.h:164
bip341_wallet_vectors.json.h
prevector::data
value_type * data()
Definition: prevector.h:532
BasicTestingSetup
Basic testing setup.
Definition: setup_common.h:64
base_blob::begin
constexpr unsigned char * begin()
Definition: uint256.h:102
OP_1
Definition: script.h:82
GenerateRandomKey
CKey GenerateRandomKey(bool compressed) noexcept
Definition: key.cpp:352
OP_11
Definition: script.h:93
TxoutType::ANCHOR
anyone can spend script
key_io.h
TaprootSpendData::scripts
std::map< std::pair< std::vector< unsigned char >, int >, std::set< std::vector< unsigned char >, ShortestVectorFirstComparator > > scripts
Map from (script, leaf_version) to (sets of) control blocks.
Definition: signingprovider.h:39
ExtractDestination
bool ExtractDestination(const CScript &scriptPubKey, CTxDestination &addressRet)
Parse a scriptPubKey for the destination.
Definition: addresstype.cpp:49
WitnessUnknown
CTxDestination subtype to encode any future Witness version.
Definition: addresstype.h:95
BOOST_AUTO_TEST_SUITE_END
BOOST_AUTO_TEST_SUITE_END()
setup_common.h
TaprootBuilder::Finalize
TaprootBuilder & Finalize(const XOnlyPubKey &internal_key)
Finalize the construction.
Definition: signingprovider.cpp:389
CPubKey
An encapsulated public key.
Definition: pubkey.h:33
uint256::ZERO
static const uint256 ZERO
Definition: uint256.h:185
TaprootBuilder::GetOutput
WitnessV1Taproot GetOutput()
Compute scriptPubKey (after Finalize()).
Definition: signingprovider.cpp:400
CKey::MakeNewKey
void MakeNewKey(bool fCompressed)
Generate a new private key using a cryptographic PRNG.
Definition: key.cpp:161
GetScriptForDestination
CScript GetScriptForDestination(const CTxDestination &dest)
Generate a Bitcoin scriptPubKey for the given CTxDestination.
Definition: addresstype.cpp:166
CScript::IsPayToAnchor
bool IsPayToAnchor() const
Definition: script.cpp:207
TaprootBuilder::GetSpendData
TaprootSpendData GetSpendData() const
Compute spending data (after Finalize()).
Definition: signingprovider.cpp:402
node
Definition: messages.h:20
TaprootBuilder
Utility class to construct Taproot outputs from internal key and script tree.
Definition: signingprovider.h:45
Hash160
uint160 Hash160(const T1 &in1)
Compute the 160-bit hash an object.
Definition: hash.h:92
ToByteVector
std::vector< unsigned char > ToByteVector(const T &in)
Definition: script.h:66
uint256
256-bit opaque blob.
Definition: uint256.h:178
TaprootBuilder::ValidDepths
static bool ValidDepths(const std::vector< int > &depths)
Check if a list of depths is legal (will lead to IsComplete()).
Definition: signingprovider.cpp:343
OP_9
Definition: script.h:91
BOOST_CHECK_EQUAL
#define BOOST_CHECK_EQUAL(v1, v2)
Definition: object.cpp:18
CScript
Serialized script, used inside transaction inputs and outputs.
Definition: script.h:413
CTxDestination
std::variant< CNoDestination, PubKeyDestination, PKHash, ScriptHash, WitnessV0ScriptHash, WitnessV0KeyHash, WitnessV1Taproot, PayToAnchor, WitnessUnknown > CTxDestination
A txout script categorized into standard templates.
Definition: addresstype.h:140
TaprootBuilder::Add
TaprootBuilder & Add(int depth, Span< const unsigned char > script, int leaf_version, bool track=true)
Add a new script at a certain depth in the tree.
Definition: signingprovider.cpp:366
OP_3
Definition: script.h:85
HexStr
std::string HexStr(const Span< const uint8_t > s)
Convert a span of bytes to a lower-case hexadecimal string.
Definition: hex_base.cpp:29
CScriptID
A reference to a CScript: the Hash160 of its serialization.
Definition: script.h:590
EncodeDestination
std::string EncodeDestination(const CTxDestination &dest)
Definition: key_io.cpp:294
GetScriptForRawPubKey
CScript GetScriptForRawPubKey(const CPubKey &pubKey)
Generate a P2PK script for the given pubkey.
Definition: solver.cpp:213
prevector::size
size_type size() const
Definition: prevector.h:296
OP_2
Definition: script.h:84
TaprootBuilder::IsComplete
bool IsComplete() const
Return whether there were either no leaves, or the leaves form a Huffman tree.
Definition: signingprovider.h:128
OP_16
Definition: script.h:98
CKey
An encapsulated private key.
Definition: key.h:34
CHash160
A hasher class for Bitcoin&#39;s 160-bit hash (SHA-256 + RIPEMD-160).
Definition: hash.h:49
TaprootBuilder::IsValid
bool IsValid() const
Return true if so far all input was valid.
Definition: signingprovider.h:126
CSHA256
A hasher class for SHA-256.
Definition: sha256.h:13
TxoutType::WITNESS_UNKNOWN
Only for Witness versions not already defined above.
CScript::clear
void clear()
Definition: script.h:565
CHash160::Write
CHash160 & Write(Span< const unsigned char > input)
Definition: hash.h:62
BOOST_AUTO_TEST_CASE
BOOST_AUTO_TEST_CASE(dest_default_is_no_dest)
Definition: script_standard_tests.cpp:22
BOOST_CHECK
#define BOOST_CHECK(expr)
Definition: object.cpp:17
TxoutType::NULL_DATA
unspendable OP_RETURN script that carries data
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