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lib: add Taproot support to libconsensus

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Co-authored-by: Bruno Garcia <brunoely.gc@gmail.com>
This commit is contained in:
Jake Rawsthorne
2021-02-14 23:09:15 +00:00
committed by brunoerg
parent 73dfa6da08
commit fb0db07e41
3 changed files with 122 additions and 4 deletions
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65
src/test/script_tests.cpp
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@@ -1637,6 +1637,37 @@ BOOST_AUTO_TEST_CASE(bitcoinconsensus_verify_script_invalid_flags)
BOOST_CHECK_EQUAL(err, bitcoinconsensus_ERR_INVALID_FLAGS);
}
/* Test bitcoinconsensus_verify_script returns spent outputs required err */
BOOST_AUTO_TEST_CASE(bitcoinconsensus_verify_script_spent_outputs_required_err)
{
unsigned int libconsensus_flags{bitcoinconsensus_SCRIPT_FLAGS_VERIFY_TAPROOT};
const int nIn{0};
CScript scriptPubKey;
CScript scriptSig;
CScriptWitness wit;
scriptPubKey << OP_EQUAL;
CTransaction creditTx{BuildCreditingTransaction(scriptPubKey, 1)};
CTransaction spendTx{BuildSpendingTransaction(scriptSig, wit, creditTx)};
CDataStream stream(SER_NETWORK, PROTOCOL_VERSION);
stream << spendTx;
bitcoinconsensus_error err;
int result{bitcoinconsensus_verify_script_with_spent_outputs(scriptPubKey.data(), scriptPubKey.size(), creditTx.vout[0].nValue, UCharCast(stream.data()), stream.size(), nullptr, 0, nIn, libconsensus_flags, &err)};
BOOST_CHECK_EQUAL(result, 0);
BOOST_CHECK_EQUAL(err, bitcoinconsensus_ERR_SPENT_OUTPUTS_REQUIRED);
result = bitcoinconsensus_verify_script_with_amount(scriptPubKey.data(), scriptPubKey.size(), creditTx.vout[0].nValue, UCharCast(stream.data()), stream.size(), nIn, libconsensus_flags, &err);
BOOST_CHECK_EQUAL(result, 0);
BOOST_CHECK_EQUAL(err, bitcoinconsensus_ERR_SPENT_OUTPUTS_REQUIRED);
result = bitcoinconsensus_verify_script(scriptPubKey.data(), scriptPubKey.size(), UCharCast(stream.data()), stream.size(), nIn, libconsensus_flags, &err);
BOOST_CHECK_EQUAL(result, 0);
BOOST_CHECK_EQUAL(err, bitcoinconsensus_ERR_SPENT_OUTPUTS_REQUIRED);
}
#endif // defined(HAVE_CONSENSUS_LIB)
static std::vector<unsigned int> AllConsensusFlags()
@@ -1685,12 +1716,29 @@ static void AssetTest(const UniValue& test)
PrecomputedTransactionData txdata;
txdata.Init(tx, std::vector<CTxOut>(prevouts));
CachingTransactionSignatureChecker txcheck(&tx, idx, prevouts[idx].nValue, true, txdata);
#if defined(HAVE_CONSENSUS_LIB)
CDataStream stream(SER_NETWORK, PROTOCOL_VERSION);
stream << tx;
std::vector<UTXO> utxos;
utxos.resize(prevouts.size());
for (size_t i = 0; i < prevouts.size(); i++) {
utxos[i].scriptPubKey = prevouts[i].scriptPubKey.data();
utxos[i].scriptPubKeySize = prevouts[i].scriptPubKey.size();
utxos[i].value = prevouts[i].nValue;
}
#endif
for (const auto flags : ALL_CONSENSUS_FLAGS) {
// "final": true tests are valid for all flags. Others are only valid with flags that are
// a subset of test_flags.
if (fin || ((flags & test_flags) == flags)) {
bool ret = VerifyScript(tx.vin[idx].scriptSig, prevouts[idx].scriptPubKey, &tx.vin[idx].scriptWitness, flags, txcheck, nullptr);
BOOST_CHECK(ret);
#if defined(HAVE_CONSENSUS_LIB)
int lib_ret = bitcoinconsensus_verify_script_with_spent_outputs(prevouts[idx].scriptPubKey.data(), prevouts[idx].scriptPubKey.size(), prevouts[idx].nValue, UCharCast(stream.data()), stream.size(), utxos.data(), utxos.size(), idx, flags, nullptr);
BOOST_CHECK(lib_ret == 1);
#endif
}
}
}
@@ -1702,11 +1750,28 @@ static void AssetTest(const UniValue& test)
PrecomputedTransactionData txdata;
txdata.Init(tx, std::vector<CTxOut>(prevouts));
CachingTransactionSignatureChecker txcheck(&tx, idx, prevouts[idx].nValue, true, txdata);
#if defined(HAVE_CONSENSUS_LIB)
CDataStream stream(SER_NETWORK, PROTOCOL_VERSION);
stream << tx;
std::vector<UTXO> utxos;
utxos.resize(prevouts.size());
for (size_t i = 0; i < prevouts.size(); i++) {
utxos[i].scriptPubKey = prevouts[i].scriptPubKey.data();
utxos[i].scriptPubKeySize = prevouts[i].scriptPubKey.size();
utxos[i].value = prevouts[i].nValue;
}
#endif
for (const auto flags : ALL_CONSENSUS_FLAGS) {
// If a test is supposed to fail with test_flags, it should also fail with any superset thereof.
if ((flags & test_flags) == test_flags) {
bool ret = VerifyScript(tx.vin[idx].scriptSig, prevouts[idx].scriptPubKey, &tx.vin[idx].scriptWitness, flags, txcheck, nullptr);
BOOST_CHECK(!ret);
#if defined(HAVE_CONSENSUS_LIB)
int lib_ret = bitcoinconsensus_verify_script_with_spent_outputs(prevouts[idx].scriptPubKey.data(), prevouts[idx].scriptPubKey.size(), prevouts[idx].nValue, UCharCast(stream.data()), stream.size(), utxos.data(), utxos.size(), idx, flags, nullptr);
BOOST_CHECK(lib_ret == 0);
#endif
}
}
}