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Refactor script validation to observe amounts

This is a preparation for BIP143 support.
pull/1/head
Pieter Wuille 7 years ago
parent
commit
0ef1dd3e11
  1. 3
      src/bitcoin-tx.cpp
  2. 2
      src/main.cpp
  3. 6
      src/main.h
  4. 3
      src/rpc/rawtransaction.cpp
  5. 3
      src/script/bitcoinconsensus.cpp
  6. 2
      src/script/bitcoinconsensus.h
  7. 4
      src/script/interpreter.h
  8. 2
      src/script/sigcache.h
  9. 5
      src/script/sign.cpp
  10. 17
      src/test/multisig_tests.cpp
  11. 2
      src/test/script_P2SH_tests.cpp
  12. 29
      src/test/script_tests.cpp
  13. 6
      src/test/transaction_tests.cpp

3
src/bitcoin-tx.cpp

@ -462,6 +462,7 @@ static void MutateTxSign(CMutableTransaction& tx, const string& flagStr) @@ -462,6 +462,7 @@ static void MutateTxSign(CMutableTransaction& tx, const string& flagStr)
continue;
}
const CScript& prevPubKey = coins->vout[txin.prevout.n].scriptPubKey;
const CAmount& amount = coins->vout[txin.prevout.n].nValue;
txin.scriptSig.clear();
// Only sign SIGHASH_SINGLE if there's a corresponding output:
@ -472,7 +473,7 @@ static void MutateTxSign(CMutableTransaction& tx, const string& flagStr) @@ -472,7 +473,7 @@ static void MutateTxSign(CMutableTransaction& tx, const string& flagStr)
BOOST_FOREACH(const CTransaction& txv, txVariants) {
txin.scriptSig = CombineSignatures(prevPubKey, mergedTx, i, txin.scriptSig, txv.vin[i].scriptSig);
}
if (!VerifyScript(txin.scriptSig, prevPubKey, mergedTx.wit.vtxinwit.size() > i ? &mergedTx.wit.vtxinwit[i].scriptWitness : NULL, STANDARD_SCRIPT_VERIFY_FLAGS, MutableTransactionSignatureChecker(&mergedTx, i)))
if (!VerifyScript(txin.scriptSig, prevPubKey, mergedTx.wit.vtxinwit.size() > i ? &mergedTx.wit.vtxinwit[i].scriptWitness : NULL, STANDARD_SCRIPT_VERIFY_FLAGS, MutableTransactionSignatureChecker(&mergedTx, i, amount)))
fComplete = false;
}

2
src/main.cpp

@ -1885,7 +1885,7 @@ void UpdateCoins(const CTransaction& tx, CCoinsViewCache& inputs, int nHeight) @@ -1885,7 +1885,7 @@ void UpdateCoins(const CTransaction& tx, CCoinsViewCache& inputs, int nHeight)
bool CScriptCheck::operator()() {
const CScript &scriptSig = ptxTo->vin[nIn].scriptSig;
const CScriptWitness *witness = (nIn < ptxTo->wit.vtxinwit.size()) ? &ptxTo->wit.vtxinwit[nIn].scriptWitness : NULL;
if (!VerifyScript(scriptSig, scriptPubKey, witness, nFlags, CachingTransactionSignatureChecker(ptxTo, nIn, cacheStore), &error)) {
if (!VerifyScript(scriptSig, scriptPubKey, witness, nFlags, CachingTransactionSignatureChecker(ptxTo, nIn, amount, cacheStore), &error)) {
return false;
}
return true;

6
src/main.h

@ -394,6 +394,7 @@ class CScriptCheck @@ -394,6 +394,7 @@ class CScriptCheck
{
private:
CScript scriptPubKey;
CAmount amount;
const CTransaction *ptxTo;
unsigned int nIn;
unsigned int nFlags;
@ -401,9 +402,9 @@ private: @@ -401,9 +402,9 @@ private:
ScriptError error;
public:
CScriptCheck(): ptxTo(0), nIn(0), nFlags(0), cacheStore(false), error(SCRIPT_ERR_UNKNOWN_ERROR) {}
CScriptCheck(): amount(0), ptxTo(0), nIn(0), nFlags(0), cacheStore(false), error(SCRIPT_ERR_UNKNOWN_ERROR) {}
CScriptCheck(const CCoins& txFromIn, const CTransaction& txToIn, unsigned int nInIn, unsigned int nFlagsIn, bool cacheIn) :
scriptPubKey(txFromIn.vout[txToIn.vin[nInIn].prevout.n].scriptPubKey),
scriptPubKey(txFromIn.vout[txToIn.vin[nInIn].prevout.n].scriptPubKey), amount(txFromIn.vout[txToIn.vin[nInIn].prevout.n].nValue),
ptxTo(&txToIn), nIn(nInIn), nFlags(nFlagsIn), cacheStore(cacheIn), error(SCRIPT_ERR_UNKNOWN_ERROR) { }
bool operator()();
@ -411,6 +412,7 @@ public: @@ -411,6 +412,7 @@ public:
void swap(CScriptCheck &check) {
scriptPubKey.swap(check.scriptPubKey);
std::swap(ptxTo, check.ptxTo);
std::swap(amount, check.amount);
std::swap(nIn, check.nIn);
std::swap(nFlags, check.nFlags);
std::swap(cacheStore, check.cacheStore);

3
src/rpc/rawtransaction.cpp

@ -778,6 +778,7 @@ UniValue signrawtransaction(const UniValue& params, bool fHelp) @@ -778,6 +778,7 @@ UniValue signrawtransaction(const UniValue& params, bool fHelp)
continue;
}
const CScript& prevPubKey = coins->vout[txin.prevout.n].scriptPubKey;
const CAmount& amount = coins->vout[txin.prevout.n].nValue;
txin.scriptSig.clear();
// Only sign SIGHASH_SINGLE if there's a corresponding output:
@ -789,7 +790,7 @@ UniValue signrawtransaction(const UniValue& params, bool fHelp) @@ -789,7 +790,7 @@ UniValue signrawtransaction(const UniValue& params, bool fHelp)
txin.scriptSig = CombineSignatures(prevPubKey, txConst, i, txin.scriptSig, txv.vin[i].scriptSig);
}
ScriptError serror = SCRIPT_ERR_OK;
if (!VerifyScript(txin.scriptSig, prevPubKey, mergedTx.wit.vtxinwit.size() > i ? &mergedTx.wit.vtxinwit[i].scriptWitness : NULL, STANDARD_SCRIPT_VERIFY_FLAGS, TransactionSignatureChecker(&txConst, i), &serror)) {
if (!VerifyScript(txin.scriptSig, prevPubKey, mergedTx.wit.vtxinwit.size() > i ? &mergedTx.wit.vtxinwit[i].scriptWitness : NULL, STANDARD_SCRIPT_VERIFY_FLAGS, TransactionSignatureChecker(&txConst, i, amount), &serror)) {
TxInErrorToJSON(txin, vErrors, ScriptErrorString(serror));
}
}

3
src/script/bitcoinconsensus.cpp

@ -85,7 +85,8 @@ int bitcoinconsensus_verify_script(const unsigned char *scriptPubKey, unsigned i @@ -85,7 +85,8 @@ int bitcoinconsensus_verify_script(const unsigned char *scriptPubKey, unsigned i
// Regardless of the verification result, the tx did not error.
set_error(err, bitcoinconsensus_ERR_OK);
return VerifyScript(tx.vin[nIn].scriptSig, CScript(scriptPubKey, scriptPubKey + scriptPubKeyLen), nIn < tx.wit.vtxinwit.size() ? &tx.wit.vtxinwit[nIn].scriptWitness : NULL, flags, TransactionSignatureChecker(&tx, nIn), NULL);
CAmount am(0);
return VerifyScript(tx.vin[nIn].scriptSig, CScript(scriptPubKey, scriptPubKey + scriptPubKeyLen), nIn < tx.wit.vtxinwit.size() ? &tx.wit.vtxinwit[nIn].scriptWitness : NULL, flags, TransactionSignatureChecker(&tx, nIn, am), NULL);
} catch (const std::exception&) {
return set_error(err, bitcoinconsensus_ERR_TX_DESERIALIZE); // Error deserializing
}

2
src/script/bitcoinconsensus.h

@ -6,6 +6,8 @@ @@ -6,6 +6,8 @@
#ifndef BITCOIN_BITCOINCONSENSUS_H
#define BITCOIN_BITCOINCONSENSUS_H
#include <stdint.h>
#if defined(BUILD_BITCOIN_INTERNAL) && defined(HAVE_CONFIG_H)
#include "config/bitcoin-config.h"
#if defined(_WIN32)

4
src/script/interpreter.h

@ -131,7 +131,7 @@ protected: @@ -131,7 +131,7 @@ protected:
virtual bool VerifySignature(const std::vector<unsigned char>& vchSig, const CPubKey& vchPubKey, const uint256& sighash) const;
public:
TransactionSignatureChecker(const CTransaction* txToIn, unsigned int nInIn) : txTo(txToIn), nIn(nInIn) {}
TransactionSignatureChecker(const CTransaction* txToIn, unsigned int nInIn, const CAmount& amount) : txTo(txToIn), nIn(nInIn) {}
bool CheckSig(const std::vector<unsigned char>& scriptSig, const std::vector<unsigned char>& vchPubKey, const CScript& scriptCode) const;
bool CheckLockTime(const CScriptNum& nLockTime) const;
bool CheckSequence(const CScriptNum& nSequence) const;
@ -143,7 +143,7 @@ private: @@ -143,7 +143,7 @@ private:
const CTransaction txTo;
public:
MutableTransactionSignatureChecker(const CMutableTransaction* txToIn, unsigned int nInIn) : TransactionSignatureChecker(&txTo, nInIn), txTo(*txToIn) {}
MutableTransactionSignatureChecker(const CMutableTransaction* txToIn, unsigned int nInIn, const CAmount& amount) : TransactionSignatureChecker(&txTo, nInIn, amount), txTo(*txToIn) {}
};
bool EvalScript(std::vector<std::vector<unsigned char> >& stack, const CScript& script, unsigned int flags, const BaseSignatureChecker& checker, ScriptError* error = NULL);

2
src/script/sigcache.h

@ -22,7 +22,7 @@ private: @@ -22,7 +22,7 @@ private:
bool store;
public:
CachingTransactionSignatureChecker(const CTransaction* txToIn, unsigned int nInIn, bool storeIn=true) : TransactionSignatureChecker(txToIn, nInIn), store(storeIn) {}
CachingTransactionSignatureChecker(const CTransaction* txToIn, unsigned int nInIn, const CAmount& amount, bool storeIn) : TransactionSignatureChecker(txToIn, nInIn, amount), store(storeIn) {}
bool VerifySignature(const std::vector<unsigned char>& vchSig, const CPubKey& vchPubKey, const uint256& sighash) const;
};

5
src/script/sign.cpp

@ -18,7 +18,8 @@ using namespace std; @@ -18,7 +18,8 @@ using namespace std;
typedef std::vector<unsigned char> valtype;
TransactionSignatureCreator::TransactionSignatureCreator(const CKeyStore* keystoreIn, const CTransaction* txToIn, unsigned int nInIn, int nHashTypeIn) : BaseSignatureCreator(keystoreIn), txTo(txToIn), nIn(nInIn), nHashType(nHashTypeIn), checker(txTo, nIn) {}
static const CAmount amountZero = 0;
TransactionSignatureCreator::TransactionSignatureCreator(const CKeyStore* keystoreIn, const CTransaction* txToIn, unsigned int nInIn, int nHashTypeIn) : BaseSignatureCreator(keystoreIn), txTo(txToIn), nIn(nInIn), nHashType(nHashTypeIn), checker(txTo, nIn, amountZero) {}
bool TransactionSignatureCreator::CreateSig(std::vector<unsigned char>& vchSig, const CKeyID& address, const CScript& scriptCode) const
{
@ -258,7 +259,7 @@ static CScript CombineSignatures(const CScript& scriptPubKey, const BaseSignatur @@ -258,7 +259,7 @@ static CScript CombineSignatures(const CScript& scriptPubKey, const BaseSignatur
CScript CombineSignatures(const CScript& scriptPubKey, const CTransaction& txTo, unsigned int nIn,
const CScript& scriptSig1, const CScript& scriptSig2)
{
TransactionSignatureChecker checker(&txTo, nIn);
TransactionSignatureChecker checker(&txTo, nIn, amountZero);
return CombineSignatures(scriptPubKey, checker, scriptSig1, scriptSig2);
}

17
src/test/multisig_tests.cpp

@ -46,6 +46,7 @@ BOOST_AUTO_TEST_CASE(multisig_verify) @@ -46,6 +46,7 @@ BOOST_AUTO_TEST_CASE(multisig_verify)
ScriptError err;
CKey key[4];
CAmount amount = 0;
for (int i = 0; i < 4; i++)
key[i].MakeNewKey(true);
@ -81,20 +82,20 @@ BOOST_AUTO_TEST_CASE(multisig_verify) @@ -81,20 +82,20 @@ BOOST_AUTO_TEST_CASE(multisig_verify)
keys.assign(1,key[0]);
keys.push_back(key[1]);
s = sign_multisig(a_and_b, keys, txTo[0], 0);
BOOST_CHECK(VerifyScript(s, a_and_b, NULL, flags, MutableTransactionSignatureChecker(&txTo[0], 0), &err));
BOOST_CHECK(VerifyScript(s, a_and_b, NULL, flags, MutableTransactionSignatureChecker(&txTo[0], 0, amount), &err));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
for (int i = 0; i < 4; i++)
{
keys.assign(1,key[i]);
s = sign_multisig(a_and_b, keys, txTo[0], 0);
BOOST_CHECK_MESSAGE(!VerifyScript(s, a_and_b, NULL, flags, MutableTransactionSignatureChecker(&txTo[0], 0), &err), strprintf("a&b 1: %d", i));
BOOST_CHECK_MESSAGE(!VerifyScript(s, a_and_b, NULL, flags, MutableTransactionSignatureChecker(&txTo[0], 0, amount), &err), strprintf("a&b 1: %d", i));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_INVALID_STACK_OPERATION, ScriptErrorString(err));
keys.assign(1,key[1]);
keys.push_back(key[i]);
s = sign_multisig(a_and_b, keys, txTo[0], 0);
BOOST_CHECK_MESSAGE(!VerifyScript(s, a_and_b, NULL, flags, MutableTransactionSignatureChecker(&txTo[0], 0), &err), strprintf("a&b 2: %d", i));
BOOST_CHECK_MESSAGE(!VerifyScript(s, a_and_b, NULL, flags, MutableTransactionSignatureChecker(&txTo[0], 0, amount), &err), strprintf("a&b 2: %d", i));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EVAL_FALSE, ScriptErrorString(err));
}
@ -105,18 +106,18 @@ BOOST_AUTO_TEST_CASE(multisig_verify) @@ -105,18 +106,18 @@ BOOST_AUTO_TEST_CASE(multisig_verify)
s = sign_multisig(a_or_b, keys, txTo[1], 0);
if (i == 0 || i == 1)
{
BOOST_CHECK_MESSAGE(VerifyScript(s, a_or_b, NULL, flags, MutableTransactionSignatureChecker(&txTo[1], 0), &err), strprintf("a|b: %d", i));
BOOST_CHECK_MESSAGE(VerifyScript(s, a_or_b, NULL, flags, MutableTransactionSignatureChecker(&txTo[1], 0, amount), &err), strprintf("a|b: %d", i));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
}
else
{
BOOST_CHECK_MESSAGE(!VerifyScript(s, a_or_b, NULL, flags, MutableTransactionSignatureChecker(&txTo[1], 0), &err), strprintf("a|b: %d", i));
BOOST_CHECK_MESSAGE(!VerifyScript(s, a_or_b, NULL, flags, MutableTransactionSignatureChecker(&txTo[1], 0, amount), &err), strprintf("a|b: %d", i));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EVAL_FALSE, ScriptErrorString(err));
}
}
s.clear();
s << OP_0 << OP_1;
BOOST_CHECK(!VerifyScript(s, a_or_b, NULL, flags, MutableTransactionSignatureChecker(&txTo[1], 0), &err));
BOOST_CHECK(!VerifyScript(s, a_or_b, NULL, flags, MutableTransactionSignatureChecker(&txTo[1], 0, amount), &err));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_SIG_DER, ScriptErrorString(err));
@ -128,12 +129,12 @@ BOOST_AUTO_TEST_CASE(multisig_verify) @@ -128,12 +129,12 @@ BOOST_AUTO_TEST_CASE(multisig_verify)
s = sign_multisig(escrow, keys, txTo[2], 0);
if (i < j && i < 3 && j < 3)
{
BOOST_CHECK_MESSAGE(VerifyScript(s, escrow, NULL, flags, MutableTransactionSignatureChecker(&txTo[2], 0), &err), strprintf("escrow 1: %d %d", i, j));
BOOST_CHECK_MESSAGE(VerifyScript(s, escrow, NULL, flags, MutableTransactionSignatureChecker(&txTo[2], 0, amount), &err), strprintf("escrow 1: %d %d", i, j));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
}
else
{
BOOST_CHECK_MESSAGE(!VerifyScript(s, escrow, NULL, flags, MutableTransactionSignatureChecker(&txTo[2], 0), &err), strprintf("escrow 2: %d %d", i, j));
BOOST_CHECK_MESSAGE(!VerifyScript(s, escrow, NULL, flags, MutableTransactionSignatureChecker(&txTo[2], 0, amount), &err), strprintf("escrow 2: %d %d", i, j));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EVAL_FALSE, ScriptErrorString(err));
}
}

2
src/test/script_P2SH_tests.cpp

@ -42,7 +42,7 @@ Verify(const CScript& scriptSig, const CScript& scriptPubKey, bool fStrict, Scri @@ -42,7 +42,7 @@ Verify(const CScript& scriptSig, const CScript& scriptPubKey, bool fStrict, Scri
txTo.vin[0].scriptSig = scriptSig;
txTo.vout[0].nValue = 1;
return VerifyScript(scriptSig, scriptPubKey, NULL, fStrict ? SCRIPT_VERIFY_P2SH : SCRIPT_VERIFY_NONE, MutableTransactionSignatureChecker(&txTo, 0), &err);
return VerifyScript(scriptSig, scriptPubKey, NULL, fStrict ? SCRIPT_VERIFY_P2SH : SCRIPT_VERIFY_NONE, MutableTransactionSignatureChecker(&txTo, 0, txFrom.vout[0].nValue), &err);
}

29
src/test/script_tests.cpp

@ -154,7 +154,8 @@ void DoTest(const CScript& scriptPubKey, const CScript& scriptSig, int flags, co @@ -154,7 +154,8 @@ void DoTest(const CScript& scriptPubKey, const CScript& scriptSig, int flags, co
ScriptError err;
CMutableTransaction tx = BuildSpendingTransaction(scriptSig, BuildCreditingTransaction(scriptPubKey));
CMutableTransaction tx2 = tx;
BOOST_CHECK_MESSAGE(VerifyScript(scriptSig, scriptPubKey, NULL, flags, MutableTransactionSignatureChecker(&tx, 0), &err) == expect, message);
static const CAmount amountZero = 0;
BOOST_CHECK_MESSAGE(VerifyScript(scriptSig, scriptPubKey, NULL, flags, MutableTransactionSignatureChecker(&tx, 0, amountZero), &err) == expect, message);
BOOST_CHECK_MESSAGE(err == scriptError, std::string(FormatScriptError(err)) + " where " + std::string(FormatScriptError((ScriptError_t)scriptError)) + " expected: " + message);
#if defined(HAVE_CONSENSUS_LIB)
CDataStream stream(SER_NETWORK, PROTOCOL_VERSION);
@ -803,18 +804,18 @@ BOOST_AUTO_TEST_CASE(script_CHECKMULTISIG12) @@ -803,18 +804,18 @@ BOOST_AUTO_TEST_CASE(script_CHECKMULTISIG12)
CMutableTransaction txTo12 = BuildSpendingTransaction(CScript(), txFrom12);
CScript goodsig1 = sign_multisig(scriptPubKey12, key1, txTo12);
BOOST_CHECK(VerifyScript(goodsig1, scriptPubKey12, NULL, flags, MutableTransactionSignatureChecker(&txTo12, 0), &err));
BOOST_CHECK(VerifyScript(goodsig1, scriptPubKey12, NULL, flags, MutableTransactionSignatureChecker(&txTo12, 0, txFrom12.vout[0].nValue), &err));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
txTo12.vout[0].nValue = 2;
BOOST_CHECK(!VerifyScript(goodsig1, scriptPubKey12, NULL, flags, MutableTransactionSignatureChecker(&txTo12, 0), &err));
BOOST_CHECK(!VerifyScript(goodsig1, scriptPubKey12, NULL, flags, MutableTransactionSignatureChecker(&txTo12, 0, txFrom12.vout[0].nValue), &err));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EVAL_FALSE, ScriptErrorString(err));
CScript goodsig2 = sign_multisig(scriptPubKey12, key2, txTo12);
BOOST_CHECK(VerifyScript(goodsig2, scriptPubKey12, NULL, flags, MutableTransactionSignatureChecker(&txTo12, 0), &err));
BOOST_CHECK(VerifyScript(goodsig2, scriptPubKey12, NULL, flags, MutableTransactionSignatureChecker(&txTo12, 0, txFrom12.vout[0].nValue), &err));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
CScript badsig1 = sign_multisig(scriptPubKey12, key3, txTo12);
BOOST_CHECK(!VerifyScript(badsig1, scriptPubKey12, NULL, flags, MutableTransactionSignatureChecker(&txTo12, 0), &err));
BOOST_CHECK(!VerifyScript(badsig1, scriptPubKey12, NULL, flags, MutableTransactionSignatureChecker(&txTo12, 0, txFrom12.vout[0].nValue), &err));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EVAL_FALSE, ScriptErrorString(err));
}
@ -836,54 +837,54 @@ BOOST_AUTO_TEST_CASE(script_CHECKMULTISIG23) @@ -836,54 +837,54 @@ BOOST_AUTO_TEST_CASE(script_CHECKMULTISIG23)
std::vector<CKey> keys;
keys.push_back(key1); keys.push_back(key2);
CScript goodsig1 = sign_multisig(scriptPubKey23, keys, txTo23);
BOOST_CHECK(VerifyScript(goodsig1, scriptPubKey23, NULL, flags, MutableTransactionSignatureChecker(&txTo23, 0), &err));
BOOST_CHECK(VerifyScript(goodsig1, scriptPubKey23, NULL, flags, MutableTransactionSignatureChecker(&txTo23, 0, txFrom23.vout[0].nValue), &err));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
keys.clear();
keys.push_back(key1); keys.push_back(key3);
CScript goodsig2 = sign_multisig(scriptPubKey23, keys, txTo23);
BOOST_CHECK(VerifyScript(goodsig2, scriptPubKey23, NULL, flags, MutableTransactionSignatureChecker(&txTo23, 0), &err));
BOOST_CHECK(VerifyScript(goodsig2, scriptPubKey23, NULL, flags, MutableTransactionSignatureChecker(&txTo23, 0, txFrom23.vout[0].nValue), &err));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
keys.clear();
keys.push_back(key2); keys.push_back(key3);
CScript goodsig3 = sign_multisig(scriptPubKey23, keys, txTo23);
BOOST_CHECK(VerifyScript(goodsig3, scriptPubKey23, NULL, flags, MutableTransactionSignatureChecker(&txTo23, 0), &err));
BOOST_CHECK(VerifyScript(goodsig3, scriptPubKey23, NULL, flags, MutableTransactionSignatureChecker(&txTo23, 0, txFrom23.vout[0].nValue), &err));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
keys.clear();
keys.push_back(key2); keys.push_back(key2); // Can't re-use sig
CScript badsig1 = sign_multisig(scriptPubKey23, keys, txTo23);
BOOST_CHECK(!VerifyScript(badsig1, scriptPubKey23, NULL, flags, MutableTransactionSignatureChecker(&txTo23, 0), &err));
BOOST_CHECK(!VerifyScript(badsig1, scriptPubKey23, NULL, flags, MutableTransactionSignatureChecker(&txTo23, 0, txFrom23.vout[0].nValue), &err));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EVAL_FALSE, ScriptErrorString(err));
keys.clear();
keys.push_back(key2); keys.push_back(key1); // sigs must be in correct order
CScript badsig2 = sign_multisig(scriptPubKey23, keys, txTo23);
BOOST_CHECK(!VerifyScript(badsig2, scriptPubKey23, NULL, flags, MutableTransactionSignatureChecker(&txTo23, 0), &err));
BOOST_CHECK(!VerifyScript(badsig2, scriptPubKey23, NULL, flags, MutableTransactionSignatureChecker(&txTo23, 0, txFrom23.vout[0].nValue), &err));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EVAL_FALSE, ScriptErrorString(err));
keys.clear();
keys.push_back(key3); keys.push_back(key2); // sigs must be in correct order
CScript badsig3 = sign_multisig(scriptPubKey23, keys, txTo23);
BOOST_CHECK(!VerifyScript(badsig3, scriptPubKey23, NULL, flags, MutableTransactionSignatureChecker(&txTo23, 0), &err));
BOOST_CHECK(!VerifyScript(badsig3, scriptPubKey23, NULL, flags, MutableTransactionSignatureChecker(&txTo23, 0, txFrom23.vout[0].nValue), &err));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EVAL_FALSE, ScriptErrorString(err));
keys.clear();
keys.push_back(key4); keys.push_back(key2); // sigs must match pubkeys
CScript badsig4 = sign_multisig(scriptPubKey23, keys, txTo23);
BOOST_CHECK(!VerifyScript(badsig4, scriptPubKey23, NULL, flags, MutableTransactionSignatureChecker(&txTo23, 0), &err));
BOOST_CHECK(!VerifyScript(badsig4, scriptPubKey23, NULL, flags, MutableTransactionSignatureChecker(&txTo23, 0, txFrom23.vout[0].nValue), &err));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EVAL_FALSE, ScriptErrorString(err));
keys.clear();
keys.push_back(key1); keys.push_back(key4); // sigs must match pubkeys
CScript badsig5 = sign_multisig(scriptPubKey23, keys, txTo23);
BOOST_CHECK(!VerifyScript(badsig5, scriptPubKey23, NULL, flags, MutableTransactionSignatureChecker(&txTo23, 0), &err));
BOOST_CHECK(!VerifyScript(badsig5, scriptPubKey23, NULL, flags, MutableTransactionSignatureChecker(&txTo23, 0, txFrom23.vout[0].nValue), &err));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EVAL_FALSE, ScriptErrorString(err));
keys.clear(); // Must have signatures
CScript badsig6 = sign_multisig(scriptPubKey23, keys, txTo23);
BOOST_CHECK(!VerifyScript(badsig6, scriptPubKey23, NULL, flags, MutableTransactionSignatureChecker(&txTo23, 0), &err));
BOOST_CHECK(!VerifyScript(badsig6, scriptPubKey23, NULL, flags, MutableTransactionSignatureChecker(&txTo23, 0, txFrom23.vout[0].nValue), &err));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_INVALID_STACK_OPERATION, ScriptErrorString(err));
}

6
src/test/transaction_tests.cpp

@ -149,9 +149,10 @@ BOOST_AUTO_TEST_CASE(tx_valid) @@ -149,9 +149,10 @@ BOOST_AUTO_TEST_CASE(tx_valid)
break;
}
CAmount amount = 0;
unsigned int verify_flags = ParseScriptFlags(test[2].get_str());
BOOST_CHECK_MESSAGE(VerifyScript(tx.vin[i].scriptSig, mapprevOutScriptPubKeys[tx.vin[i].prevout],
NULL, verify_flags, TransactionSignatureChecker(&tx, i), &err),
NULL, verify_flags, TransactionSignatureChecker(&tx, i, amount), &err),
strTest);
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
}
@ -224,8 +225,9 @@ BOOST_AUTO_TEST_CASE(tx_invalid) @@ -224,8 +225,9 @@ BOOST_AUTO_TEST_CASE(tx_invalid)
}
unsigned int verify_flags = ParseScriptFlags(test[2].get_str());
CAmount amount = 0;
fValid = VerifyScript(tx.vin[i].scriptSig, mapprevOutScriptPubKeys[tx.vin[i].prevout],
NULL, verify_flags, TransactionSignatureChecker(&tx, i), &err);
NULL, verify_flags, TransactionSignatureChecker(&tx, i, amount), &err);
}
BOOST_CHECK_MESSAGE(!fValid, strTest);
BOOST_CHECK_MESSAGE(err != SCRIPT_ERR_OK, ScriptErrorString(err));

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