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BIP143: Verification logic 

Includes simplifications by Eric Lombrozo.
0.13
Pieter Wuille 9 years ago
parent
0ef1dd3e11
commit
3dd410294d
11 changed files with 131 additions and 63 deletions
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  1. 2
      src/bitcoin-tx.cpp
  2. 2
      src/policy/policy.cpp
  3. 2
      src/rpc/rawtransaction.cpp
  4. 80
      src/script/interpreter.cpp
  5. 17
      src/script/interpreter.h
  6. 17
      src/script/sign.cpp
  7. 5
      src/script/sign.h
  8. 2
      src/test/multisig_tests.cpp
  9. 57
      src/test/script_tests.cpp
  10. 4
      src/test/sighash_tests.cpp
  11. 2
      src/test/txvalidationcache_tests.cpp

2
src/bitcoin-tx.cpp
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@ -471,7 +471,7 @@ static void MutateTxSign(CMutableTransaction& tx, const string& flagStr)
// ... and merge in other signatures: // ... and merge in other signatures:
BOOST_FOREACH(const CTransaction& txv, txVariants) { BOOST_FOREACH(const CTransaction& txv, txVariants) {
txin.scriptSig = CombineSignatures(prevPubKey, mergedTx, i, txin.scriptSig, txv.vin[i].scriptSig); txin.scriptSig = CombineSignatures(prevPubKey, mergedTx, i, amount, 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, amount))) 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; fComplete = false;

2
src/policy/policy.cpp
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@ -137,7 +137,7 @@ bool AreInputsStandard(const CTransaction& tx, const CCoinsViewCache& mapInputs)
{ {
std::vector<std::vector<unsigned char> > stack; std::vector<std::vector<unsigned char> > stack;
// convert the scriptSig into a stack, so we can inspect the redeemScript // convert the scriptSig into a stack, so we can inspect the redeemScript
if (!EvalScript(stack, tx.vin[i].scriptSig, SCRIPT_VERIFY_NONE, BaseSignatureChecker(), 0)) if (!EvalScript(stack, tx.vin[i].scriptSig, SCRIPT_VERIFY_NONE, BaseSignatureChecker(), SIGVERSION_BASE))
return false; return false;
if (stack.empty()) if (stack.empty())
return false; return false;

2
src/rpc/rawtransaction.cpp
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@ -787,7 +787,7 @@ UniValue signrawtransaction(const UniValue& params, bool fHelp)
// ... and merge in other signatures: // ... and merge in other signatures:
BOOST_FOREACH(const CMutableTransaction& txv, txVariants) { BOOST_FOREACH(const CMutableTransaction& txv, txVariants) {
txin.scriptSig = CombineSignatures(prevPubKey, txConst, i, txin.scriptSig, txv.vin[i].scriptSig); txin.scriptSig = CombineSignatures(prevPubKey, txConst, i, amount, txin.scriptSig, txv.vin[i].scriptSig);
} }
ScriptError serror = SCRIPT_ERR_OK; 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, amount), &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)) {

80
src/script/interpreter.cpp
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@ -229,7 +229,7 @@ bool static CheckMinimalPush(const valtype& data, opcodetype opcode) {
return true; return true;
} }
bool EvalScript(vector<vector<unsigned char> >& stack, const CScript& script, unsigned int flags, const BaseSignatureChecker& checker, ScriptError* serror) bool EvalScript(vector<vector<unsigned char> >& stack, const CScript& script, unsigned int flags, const BaseSignatureChecker& checker, SigVersion sigversion, ScriptError* serror)
{ {
static const CScriptNum bnZero(0); static const CScriptNum bnZero(0);
static const CScriptNum bnOne(1); static const CScriptNum bnOne(1);
@ -869,13 +869,15 @@ bool EvalScript(vector<vector<unsigned char> >& stack, const CScript& script, un
CScript scriptCode(pbegincodehash, pend); CScript scriptCode(pbegincodehash, pend);
// Drop the signature, since there's no way for a signature to sign itself // Drop the signature, since there's no way for a signature to sign itself
if (sigversion == SIGVERSION_BASE) {
scriptCode.FindAndDelete(CScript(vchSig)); scriptCode.FindAndDelete(CScript(vchSig));
}
if (!CheckSignatureEncoding(vchSig, flags, serror) || !CheckPubKeyEncoding(vchPubKey, flags, serror)) { if (!CheckSignatureEncoding(vchSig, flags, serror) || !CheckPubKeyEncoding(vchPubKey, flags, serror)) {
//serror is set //serror is set
return false; return false;
} }
bool fSuccess = checker.CheckSig(vchSig, vchPubKey, scriptCode); bool fSuccess = checker.CheckSig(vchSig, vchPubKey, scriptCode, sigversion);
popstack(stack); popstack(stack);
popstack(stack); popstack(stack);
@ -925,8 +927,10 @@ bool EvalScript(vector<vector<unsigned char> >& stack, const CScript& script, un
for (int k = 0; k < nSigsCount; k++) for (int k = 0; k < nSigsCount; k++)
{ {
valtype& vchSig = stacktop(-isig-k); valtype& vchSig = stacktop(-isig-k);
if (sigversion == SIGVERSION_BASE) {
scriptCode.FindAndDelete(CScript(vchSig)); scriptCode.FindAndDelete(CScript(vchSig));
} }
}
bool fSuccess = true; bool fSuccess = true;
while (fSuccess && nSigsCount > 0) while (fSuccess && nSigsCount > 0)
@ -943,7 +947,7 @@ bool EvalScript(vector<vector<unsigned char> >& stack, const CScript& script, un
} }
// Check signature // Check signature
bool fOk = checker.CheckSig(vchSig, vchPubKey, scriptCode); bool fOk = checker.CheckSig(vchSig, vchPubKey, scriptCode, sigversion);
if (fOk) { if (fOk) {
isig++; isig++;
@ -1106,8 +1110,64 @@ public:
} // anon namespace } // anon namespace
uint256 SignatureHash(const CScript& scriptCode, const CTransaction& txTo, unsigned int nIn, int nHashType) uint256 SignatureHash(const CScript& scriptCode, const CTransaction& txTo, unsigned int nIn, int nHashType, const CAmount& amount, SigVersion sigversion)
{ {
if (sigversion == SIGVERSION_WITNESS_V0) {
uint256 hashPrevouts;
uint256 hashSequence;
uint256 hashOutputs;
if (!(nHashType & SIGHASH_ANYONECANPAY)) {
CHashWriter ss(SER_GETHASH, 0);
for (unsigned int n = 0; n < txTo.vin.size(); n++) {
ss << txTo.vin[n].prevout;
}
hashPrevouts = ss.GetHash(); // TODO: cache this value for all signatures in a transaction
}
if (!(nHashType & SIGHASH_ANYONECANPAY) && (nHashType & 0x1f) != SIGHASH_SINGLE && (nHashType & 0x1f) != SIGHASH_NONE) {
CHashWriter ss(SER_GETHASH, 0);
for (unsigned int n = 0; n < txTo.vin.size(); n++) {
ss << txTo.vin[n].nSequence;
}
hashSequence = ss.GetHash(); // TODO: cache this value for all signatures in a transaction
}
if ((nHashType & 0x1f) != SIGHASH_SINGLE && (nHashType & 0x1f) != SIGHASH_NONE) {
CHashWriter ss(SER_GETHASH, 0);
for (unsigned int n = 0; n < txTo.vout.size(); n++) {
ss << txTo.vout[n];
}
hashOutputs = ss.GetHash(); // TODO: cache this value for all signatures in a transaction
} else if ((nHashType & 0x1f) == SIGHASH_SINGLE && nIn < txTo.vout.size()) {
CHashWriter ss(SER_GETHASH, 0);
ss << txTo.vout[nIn];
hashOutputs = ss.GetHash();
}
CHashWriter ss(SER_GETHASH, 0);
// Version
ss << txTo.nVersion;
// Input prevouts/nSequence (none/all, depending on flags)
ss << hashPrevouts;
ss << hashSequence;
// The input being signed (replacing the scriptSig with scriptCode + amount)
// The prevout may already be contained in hashPrevout, and the nSequence
// may already be contain in hashSequence.
ss << txTo.vin[nIn].prevout;
ss << static_cast<const CScriptBase&>(scriptCode);
ss << amount;
ss << txTo.vin[nIn].nSequence;
// Outputs (none/one/all, depending on flags)
ss << hashOutputs;
// Locktime
ss << txTo.nLockTime;
// Sighash type
ss << nHashType;
return ss.GetHash();
}
static const uint256 one(uint256S("0000000000000000000000000000000000000000000000000000000000000001")); static const uint256 one(uint256S("0000000000000000000000000000000000000000000000000000000000000001"));
if (nIn >= txTo.vin.size()) { if (nIn >= txTo.vin.size()) {
// nIn out of range // nIn out of range
@ -1136,7 +1196,7 @@ bool TransactionSignatureChecker::VerifySignature(const std::vector<unsigned cha
return pubkey.Verify(sighash, vchSig); return pubkey.Verify(sighash, vchSig);
} }
bool TransactionSignatureChecker::CheckSig(const vector<unsigned char>& vchSigIn, const vector<unsigned char>& vchPubKey, const CScript& scriptCode) const bool TransactionSignatureChecker::CheckSig(const vector<unsigned char>& vchSigIn, const vector<unsigned char>& vchPubKey, const CScript& scriptCode, SigVersion sigversion) const
{ {
CPubKey pubkey(vchPubKey); CPubKey pubkey(vchPubKey);
if (!pubkey.IsValid()) if (!pubkey.IsValid())
@ -1149,7 +1209,7 @@ bool TransactionSignatureChecker::CheckSig(const vector<unsigned char>& vchSigIn
int nHashType = vchSig.back(); int nHashType = vchSig.back();
vchSig.pop_back(); vchSig.pop_back();
uint256 sighash = SignatureHash(scriptCode, *txTo, nIn, nHashType); uint256 sighash = SignatureHash(scriptCode, *txTo, nIn, nHashType, amount, sigversion);
if (!VerifySignature(vchSig, pubkey, sighash)) if (!VerifySignature(vchSig, pubkey, sighash))
return false; return false;
@ -1280,7 +1340,7 @@ static bool VerifyWitnessProgram(const CScriptWitness& witness, int witversion,
return set_error(serror, SCRIPT_ERR_PUSH_SIZE); return set_error(serror, SCRIPT_ERR_PUSH_SIZE);
} }
if (!EvalScript(stack, scriptPubKey, flags, checker, serror)) { if (!EvalScript(stack, scriptPubKey, flags, checker, SIGVERSION_WITNESS_V0, serror)) {
return false; return false;
} }
@ -1307,12 +1367,12 @@ bool VerifyScript(const CScript& scriptSig, const CScript& scriptPubKey, const C
} }
vector<vector<unsigned char> > stack, stackCopy; vector<vector<unsigned char> > stack, stackCopy;
if (!EvalScript(stack, scriptSig, flags, checker, serror)) if (!EvalScript(stack, scriptSig, flags, checker, SIGVERSION_BASE, serror))
// serror is set // serror is set
return false; return false;
if (flags & SCRIPT_VERIFY_P2SH) if (flags & SCRIPT_VERIFY_P2SH)
stackCopy = stack; stackCopy = stack;
if (!EvalScript(stack, scriptPubKey, flags, checker, serror)) if (!EvalScript(stack, scriptPubKey, flags, checker, SIGVERSION_BASE, serror))
// serror is set // serror is set
return false; return false;
if (stack.empty()) if (stack.empty())
@ -1358,7 +1418,7 @@ bool VerifyScript(const CScript& scriptSig, const CScript& scriptPubKey, const C
CScript pubKey2(pubKeySerialized.begin(), pubKeySerialized.end()); CScript pubKey2(pubKeySerialized.begin(), pubKeySerialized.end());
popstack(stack); popstack(stack);
if (!EvalScript(stack, pubKey2, flags, checker, serror)) if (!EvalScript(stack, pubKey2, flags, checker, SIGVERSION_BASE, serror))
// serror is set // serror is set
return false; return false;
if (stack.empty()) if (stack.empty())

17
src/script/interpreter.h
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@ -98,12 +98,18 @@ enum
bool CheckSignatureEncoding(const std::vector<unsigned char> &vchSig, unsigned int flags, ScriptError* serror); bool CheckSignatureEncoding(const std::vector<unsigned char> &vchSig, unsigned int flags, ScriptError* serror);
uint256 SignatureHash(const CScript &scriptCode, const CTransaction& txTo, unsigned int nIn, int nHashType); enum SigVersion
{
SIGVERSION_BASE = 0,
SIGVERSION_WITNESS_V0 = 1,
};
uint256 SignatureHash(const CScript &scriptCode, const CTransaction& txTo, unsigned int nIn, int nHashType, const CAmount& amount, SigVersion sigversion);
class BaseSignatureChecker class BaseSignatureChecker
{ {
public: public:
virtual bool CheckSig(const std::vector<unsigned char>& scriptSig, const std::vector<unsigned char>& vchPubKey, const CScript& scriptCode) const virtual bool CheckSig(const std::vector<unsigned char>& scriptSig, const std::vector<unsigned char>& vchPubKey, const CScript& scriptCode, SigVersion sigversion) const
{ {
return false; return false;
} }
@ -126,13 +132,14 @@ class TransactionSignatureChecker : public BaseSignatureChecker
private: private:
const CTransaction* txTo; const CTransaction* txTo;
unsigned int nIn; unsigned int nIn;
const CAmount amount;
protected: protected:
virtual bool VerifySignature(const std::vector<unsigned char>& vchSig, const CPubKey& vchPubKey, const uint256& sighash) const; virtual bool VerifySignature(const std::vector<unsigned char>& vchSig, const CPubKey& vchPubKey, const uint256& sighash) const;
public: public:
TransactionSignatureChecker(const CTransaction* txToIn, unsigned int nInIn, const CAmount& amount) : txTo(txToIn), nIn(nInIn) {} TransactionSignatureChecker(const CTransaction* txToIn, unsigned int nInIn, const CAmount& amountIn) : txTo(txToIn), nIn(nInIn), amount(amountIn) {}
bool CheckSig(const std::vector<unsigned char>& scriptSig, const std::vector<unsigned char>& vchPubKey, const CScript& scriptCode) const; bool CheckSig(const std::vector<unsigned char>& scriptSig, const std::vector<unsigned char>& vchPubKey, const CScript& scriptCode, SigVersion sigversion) const;
bool CheckLockTime(const CScriptNum& nLockTime) const; bool CheckLockTime(const CScriptNum& nLockTime) const;
bool CheckSequence(const CScriptNum& nSequence) const; bool CheckSequence(const CScriptNum& nSequence) const;
}; };
@ -146,7 +153,7 @@ public:
MutableTransactionSignatureChecker(const CMutableTransaction* txToIn, unsigned int nInIn, const CAmount& amount) : TransactionSignatureChecker(&txTo, nInIn, amount), 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); bool EvalScript(std::vector<std::vector<unsigned char> >& stack, const CScript& script, unsigned int flags, const BaseSignatureChecker& checker, SigVersion sigversion, ScriptError* error = NULL);
bool VerifyScript(const CScript& scriptSig, const CScript& scriptPubKey, const CScriptWitness* witness, unsigned int flags, const BaseSignatureChecker& checker, ScriptError* serror = NULL); bool VerifyScript(const CScript& scriptSig, const CScript& scriptPubKey, const CScriptWitness* witness, unsigned int flags, const BaseSignatureChecker& checker, ScriptError* serror = NULL);
#endif // BITCOIN_SCRIPT_INTERPRETER_H #endif // BITCOIN_SCRIPT_INTERPRETER_H

17
src/script/sign.cpp
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@ -18,8 +18,7 @@ using namespace std;
typedef std::vector<unsigned char> valtype; typedef std::vector<unsigned char> valtype;
static const CAmount amountZero = 0; TransactionSignatureCreator::TransactionSignatureCreator(const CKeyStore* keystoreIn, const CTransaction* txToIn, unsigned int nInIn, const CAmount& amountIn, int nHashTypeIn) : BaseSignatureCreator(keystoreIn), txTo(txToIn), nIn(nInIn), nHashType(nHashTypeIn), amount(amountIn), checker(txTo, nIn, amountIn) {}
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 bool TransactionSignatureCreator::CreateSig(std::vector<unsigned char>& vchSig, const CKeyID& address, const CScript& scriptCode) const
{ {
@ -27,7 +26,7 @@ bool TransactionSignatureCreator::CreateSig(std::vector<unsigned char>& vchSig,
if (!keystore->GetKey(address, key)) if (!keystore->GetKey(address, key))
return false; return false;
uint256 hash = SignatureHash(scriptCode, *txTo, nIn, nHashType); uint256 hash = SignatureHash(scriptCode, *txTo, nIn, nHashType, amount, SIGVERSION_BASE);
if (!key.Sign(hash, vchSig)) if (!key.Sign(hash, vchSig))
return false; return false;
vchSig.push_back((unsigned char)nHashType); vchSig.push_back((unsigned char)nHashType);
@ -186,7 +185,7 @@ static CScript CombineMultisig(const CScript& scriptPubKey, const BaseSignatureC
if (sigs.count(pubkey)) if (sigs.count(pubkey))
continue; // Already got a sig for this pubkey continue; // Already got a sig for this pubkey
if (checker.CheckSig(sig, pubkey, scriptPubKey)) if (checker.CheckSig(sig, pubkey, scriptPubKey, SIGVERSION_BASE))
{ {
sigs[pubkey] = sig; sigs[pubkey] = sig;
break; break;
@ -256,10 +255,10 @@ static CScript CombineSignatures(const CScript& scriptPubKey, const BaseSignatur
return CScript(); return CScript();
} }
CScript CombineSignatures(const CScript& scriptPubKey, const CTransaction& txTo, unsigned int nIn, CScript CombineSignatures(const CScript& scriptPubKey, const CTransaction& txTo, unsigned int nIn, const CAmount& amount,
const CScript& scriptSig1, const CScript& scriptSig2) const CScript& scriptSig1, const CScript& scriptSig2)
{ {
TransactionSignatureChecker checker(&txTo, nIn, amountZero); TransactionSignatureChecker checker(&txTo, nIn, amount);
return CombineSignatures(scriptPubKey, checker, scriptSig1, scriptSig2); return CombineSignatures(scriptPubKey, checker, scriptSig1, scriptSig2);
} }
@ -271,9 +270,9 @@ CScript CombineSignatures(const CScript& scriptPubKey, const BaseSignatureChecke
Solver(scriptPubKey, txType, vSolutions); Solver(scriptPubKey, txType, vSolutions);
vector<valtype> stack1; vector<valtype> stack1;
EvalScript(stack1, scriptSig1, SCRIPT_VERIFY_STRICTENC, BaseSignatureChecker()); EvalScript(stack1, scriptSig1, SCRIPT_VERIFY_STRICTENC, BaseSignatureChecker(), SIGVERSION_BASE);
vector<valtype> stack2; vector<valtype> stack2;
EvalScript(stack2, scriptSig2, SCRIPT_VERIFY_STRICTENC, BaseSignatureChecker()); EvalScript(stack2, scriptSig2, SCRIPT_VERIFY_STRICTENC, BaseSignatureChecker(), SIGVERSION_BASE);
return CombineSignatures(scriptPubKey, checker, txType, vSolutions, stack1, stack2); return CombineSignatures(scriptPubKey, checker, txType, vSolutions, stack1, stack2);
} }
@ -285,7 +284,7 @@ class DummySignatureChecker : public BaseSignatureChecker
public: public:
DummySignatureChecker() {} DummySignatureChecker() {}
bool CheckSig(const std::vector<unsigned char>& scriptSig, const std::vector<unsigned char>& vchPubKey, const CScript& scriptCode) const bool CheckSig(const std::vector<unsigned char>& scriptSig, const std::vector<unsigned char>& vchPubKey, const CScript& scriptCode, SigVersion sigversion) const
{ {
return true; return true;
} }

5
src/script/sign.h
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@ -35,10 +35,11 @@ class TransactionSignatureCreator : public BaseSignatureCreator {
const CTransaction* txTo; const CTransaction* txTo;
unsigned int nIn; unsigned int nIn;
int nHashType; int nHashType;
CAmount amount;
const TransactionSignatureChecker checker; const TransactionSignatureChecker checker;
public: public:
TransactionSignatureCreator(const CKeyStore* keystoreIn, const CTransaction* txToIn, unsigned int nInIn, int nHashTypeIn=SIGHASH_ALL); TransactionSignatureCreator(const CKeyStore* keystoreIn, const CTransaction* txToIn, unsigned int nInIn, const CAmount& amountIn, int nHashTypeIn=SIGHASH_ALL);
const BaseSignatureChecker& Checker() const { return checker; } const BaseSignatureChecker& Checker() const { return checker; }
bool CreateSig(std::vector<unsigned char>& vchSig, const CKeyID& keyid, const CScript& scriptCode) const; bool CreateSig(std::vector<unsigned char>& vchSig, const CKeyID& keyid, const CScript& scriptCode) const;
}; };
@ -62,6 +63,6 @@ bool SignSignature(const CKeyStore& keystore, const CTransaction& txFrom, CMutab
CScript CombineSignatures(const CScript& scriptPubKey, const BaseSignatureChecker& checker, const CScript& scriptSig1, const CScript& scriptSig2); CScript CombineSignatures(const CScript& scriptPubKey, const BaseSignatureChecker& checker, const CScript& scriptSig1, const CScript& scriptSig2);
/** Combine two script signatures on transactions. */ /** Combine two script signatures on transactions. */
CScript CombineSignatures(const CScript& scriptPubKey, const CTransaction& txTo, unsigned int nIn, const CScript& scriptSig1, const CScript& scriptSig2); CScript CombineSignatures(const CScript& scriptPubKey, const CTransaction& txTo, unsigned int nIn, const CAmount& amount, const CScript& scriptSig1, const CScript& scriptSig2);
#endif // BITCOIN_SCRIPT_SIGN_H #endif // BITCOIN_SCRIPT_SIGN_H

2
src/test/multisig_tests.cpp
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@ -26,7 +26,7 @@ BOOST_FIXTURE_TEST_SUITE(multisig_tests, BasicTestingSetup)
CScript CScript
sign_multisig(CScript scriptPubKey, vector<CKey> keys, CTransaction transaction, int whichIn) sign_multisig(CScript scriptPubKey, vector<CKey> keys, CTransaction transaction, int whichIn)
{ {
uint256 hash = SignatureHash(scriptPubKey, transaction, whichIn, SIGHASH_ALL); uint256 hash = SignatureHash(scriptPubKey, transaction, whichIn, SIGHASH_ALL, 0, SIGVERSION_BASE);
CScript result; CScript result;
result << OP_0; // CHECKMULTISIG bug workaround result << OP_0; // CHECKMULTISIG bug workaround

57
src/test/script_tests.cpp
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@ -306,7 +306,7 @@ public:
TestBuilder& PushSig(const CKey& key, int nHashType = SIGHASH_ALL, unsigned int lenR = 32, unsigned int lenS = 32) TestBuilder& PushSig(const CKey& key, int nHashType = SIGHASH_ALL, unsigned int lenR = 32, unsigned int lenS = 32)
{ {
uint256 hash = SignatureHash(scriptPubKey, spendTx, 0, nHashType); uint256 hash = SignatureHash(scriptPubKey, spendTx, 0, nHashType, 0, SIGVERSION_BASE);
std::vector<unsigned char> vchSig, r, s; std::vector<unsigned char> vchSig, r, s;
uint32_t iter = 0; uint32_t iter = 0;
do { do {
@ -738,21 +738,21 @@ BOOST_AUTO_TEST_CASE(script_PushData)
ScriptError err; ScriptError err;
vector<vector<unsigned char> > directStack; vector<vector<unsigned char> > directStack;
BOOST_CHECK(EvalScript(directStack, CScript(&direct[0], &direct[sizeof(direct)]), SCRIPT_VERIFY_P2SH, BaseSignatureChecker(), &err)); BOOST_CHECK(EvalScript(directStack, CScript(&direct[0], &direct[sizeof(direct)]), SCRIPT_VERIFY_P2SH, BaseSignatureChecker(), SIGVERSION_BASE, &err));
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err)); BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
vector<vector<unsigned char> > pushdata1Stack; vector<vector<unsigned char> > pushdata1Stack;
BOOST_CHECK(EvalScript(pushdata1Stack, CScript(&pushdata1[0], &pushdata1[sizeof(pushdata1)]), SCRIPT_VERIFY_P2SH, BaseSignatureChecker(), &err)); BOOST_CHECK(EvalScript(pushdata1Stack, CScript(&pushdata1[0], &pushdata1[sizeof(pushdata1)]), SCRIPT_VERIFY_P2SH, BaseSignatureChecker(), SIGVERSION_BASE, &err));
BOOST_CHECK(pushdata1Stack == directStack); BOOST_CHECK(pushdata1Stack == directStack);
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err)); BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
vector<vector<unsigned char> > pushdata2Stack; vector<vector<unsigned char> > pushdata2Stack;
BOOST_CHECK(EvalScript(pushdata2Stack, CScript(&pushdata2[0], &pushdata2[sizeof(pushdata2)]), SCRIPT_VERIFY_P2SH, BaseSignatureChecker(), &err)); BOOST_CHECK(EvalScript(pushdata2Stack, CScript(&pushdata2[0], &pushdata2[sizeof(pushdata2)]), SCRIPT_VERIFY_P2SH, BaseSignatureChecker(), SIGVERSION_BASE, &err));
BOOST_CHECK(pushdata2Stack == directStack); BOOST_CHECK(pushdata2Stack == directStack);
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err)); BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
vector<vector<unsigned char> > pushdata4Stack; vector<vector<unsigned char> > pushdata4Stack;
BOOST_CHECK(EvalScript(pushdata4Stack, CScript(&pushdata4[0], &pushdata4[sizeof(pushdata4)]), SCRIPT_VERIFY_P2SH, BaseSignatureChecker(), &err)); BOOST_CHECK(EvalScript(pushdata4Stack, CScript(&pushdata4[0], &pushdata4[sizeof(pushdata4)]), SCRIPT_VERIFY_P2SH, BaseSignatureChecker(), SIGVERSION_BASE, &err));
BOOST_CHECK(pushdata4Stack == directStack); BOOST_CHECK(pushdata4Stack == directStack);
BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err)); BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
} }
@ -760,7 +760,7 @@ BOOST_AUTO_TEST_CASE(script_PushData)
CScript CScript
sign_multisig(CScript scriptPubKey, std::vector<CKey> keys, CTransaction transaction) sign_multisig(CScript scriptPubKey, std::vector<CKey> keys, CTransaction transaction)
{ {
uint256 hash = SignatureHash(scriptPubKey, transaction, 0, SIGHASH_ALL); uint256 hash = SignatureHash(scriptPubKey, transaction, 0, SIGHASH_ALL, 0, SIGVERSION_BASE);
CScript result; CScript result;
// //
@ -891,6 +891,7 @@ BOOST_AUTO_TEST_CASE(script_CHECKMULTISIG23)
BOOST_AUTO_TEST_CASE(script_combineSigs) BOOST_AUTO_TEST_CASE(script_combineSigs)
{ {
// Test the CombineSignatures function // Test the CombineSignatures function
CAmount amount;
CBasicKeyStore keystore; CBasicKeyStore keystore;
vector<CKey> keys; vector<CKey> keys;
vector<CPubKey> pubkeys; vector<CPubKey> pubkeys;
@ -909,19 +910,19 @@ BOOST_AUTO_TEST_CASE(script_combineSigs)
CScript& scriptSig = txTo.vin[0].scriptSig; CScript& scriptSig = txTo.vin[0].scriptSig;
CScript empty; CScript empty;
CScript combined = CombineSignatures(scriptPubKey, txTo, 0, empty, empty); CScript combined = CombineSignatures(scriptPubKey, txTo, 0, amount, empty, empty);
BOOST_CHECK(combined.empty()); BOOST_CHECK(combined.empty());
// Single signature case: // Single signature case:
SignSignature(keystore, txFrom, txTo, 0); // changes scriptSig SignSignature(keystore, txFrom, txTo, 0); // changes scriptSig
combined = CombineSignatures(scriptPubKey, txTo, 0, scriptSig, empty); combined = CombineSignatures(scriptPubKey, txTo, 0, amount, scriptSig, empty);
BOOST_CHECK(combined == scriptSig); BOOST_CHECK(combined == scriptSig);
combined = CombineSignatures(scriptPubKey, txTo, 0, empty, scriptSig); combined = CombineSignatures(scriptPubKey, txTo, 0, amount, empty, scriptSig);
BOOST_CHECK(combined == scriptSig); BOOST_CHECK(combined == scriptSig);
CScript scriptSigCopy = scriptSig; CScript scriptSigCopy = scriptSig;
// Signing again will give a different, valid signature: // Signing again will give a different, valid signature:
SignSignature(keystore, txFrom, txTo, 0); SignSignature(keystore, txFrom, txTo, 0);
combined = CombineSignatures(scriptPubKey, txTo, 0, scriptSigCopy, scriptSig); combined = CombineSignatures(scriptPubKey, txTo, 0, amount, scriptSigCopy, scriptSig);
BOOST_CHECK(combined == scriptSigCopy || combined == scriptSig); BOOST_CHECK(combined == scriptSigCopy || combined == scriptSig);
// P2SH, single-signature case: // P2SH, single-signature case:
@ -929,41 +930,41 @@ BOOST_AUTO_TEST_CASE(script_combineSigs)
keystore.AddCScript(pkSingle); keystore.AddCScript(pkSingle);
scriptPubKey = GetScriptForDestination(CScriptID(pkSingle)); scriptPubKey = GetScriptForDestination(CScriptID(pkSingle));
SignSignature(keystore, txFrom, txTo, 0); SignSignature(keystore, txFrom, txTo, 0);
combined = CombineSignatures(scriptPubKey, txTo, 0, scriptSig, empty); combined = CombineSignatures(scriptPubKey, txTo, 0, amount, scriptSig, empty);
BOOST_CHECK(combined == scriptSig); BOOST_CHECK(combined == scriptSig);
combined = CombineSignatures(scriptPubKey, txTo, 0, empty, scriptSig); combined = CombineSignatures(scriptPubKey, txTo, 0, amount, empty, scriptSig);
BOOST_CHECK(combined == scriptSig); BOOST_CHECK(combined == scriptSig);
scriptSigCopy = scriptSig; scriptSigCopy = scriptSig;
SignSignature(keystore, txFrom, txTo, 0); SignSignature(keystore, txFrom, txTo, 0);
combined = CombineSignatures(scriptPubKey, txTo, 0, scriptSigCopy, scriptSig); combined = CombineSignatures(scriptPubKey, txTo, 0, amount, scriptSigCopy, scriptSig);
BOOST_CHECK(combined == scriptSigCopy || combined == scriptSig); BOOST_CHECK(combined == scriptSigCopy || combined == scriptSig);
// dummy scriptSigCopy with placeholder, should always choose non-placeholder: // dummy scriptSigCopy with placeholder, should always choose non-placeholder:
scriptSigCopy = CScript() << OP_0 << vector<unsigned char>(pkSingle.begin(), pkSingle.end()); scriptSigCopy = CScript() << OP_0 << vector<unsigned char>(pkSingle.begin(), pkSingle.end());
combined = CombineSignatures(scriptPubKey, txTo, 0, scriptSigCopy, scriptSig); combined = CombineSignatures(scriptPubKey, txTo, 0, amount, scriptSigCopy, scriptSig);
BOOST_CHECK(combined == scriptSig); BOOST_CHECK(combined == scriptSig);
combined = CombineSignatures(scriptPubKey, txTo, 0, scriptSig, scriptSigCopy); combined = CombineSignatures(scriptPubKey, txTo, 0, amount, scriptSig, scriptSigCopy);
BOOST_CHECK(combined == scriptSig); BOOST_CHECK(combined == scriptSig);
// Hardest case: Multisig 2-of-3 // Hardest case: Multisig 2-of-3
scriptPubKey = GetScriptForMultisig(2, pubkeys); scriptPubKey = GetScriptForMultisig(2, pubkeys);
keystore.AddCScript(scriptPubKey); keystore.AddCScript(scriptPubKey);
SignSignature(keystore, txFrom, txTo, 0); SignSignature(keystore, txFrom, txTo, 0);
combined = CombineSignatures(scriptPubKey, txTo, 0, scriptSig, empty); combined = CombineSignatures(scriptPubKey, txTo, 0, amount, scriptSig, empty);
BOOST_CHECK(combined == scriptSig); BOOST_CHECK(combined == scriptSig);
combined = CombineSignatures(scriptPubKey, txTo, 0, empty, scriptSig); combined = CombineSignatures(scriptPubKey, txTo, 0, amount, empty, scriptSig);
BOOST_CHECK(combined == scriptSig); BOOST_CHECK(combined == scriptSig);
// A couple of partially-signed versions: // A couple of partially-signed versions:
vector<unsigned char> sig1; vector<unsigned char> sig1;
uint256 hash1 = SignatureHash(scriptPubKey, txTo, 0, SIGHASH_ALL); uint256 hash1 = SignatureHash(scriptPubKey, txTo, 0, SIGHASH_ALL, 0, SIGVERSION_BASE);
BOOST_CHECK(keys[0].Sign(hash1, sig1)); BOOST_CHECK(keys[0].Sign(hash1, sig1));
sig1.push_back(SIGHASH_ALL); sig1.push_back(SIGHASH_ALL);
vector<unsigned char> sig2; vector<unsigned char> sig2;
uint256 hash2 = SignatureHash(scriptPubKey, txTo, 0, SIGHASH_NONE); uint256 hash2 = SignatureHash(scriptPubKey, txTo, 0, SIGHASH_NONE, 0, SIGVERSION_BASE);
BOOST_CHECK(keys[1].Sign(hash2, sig2)); BOOST_CHECK(keys[1].Sign(hash2, sig2));
sig2.push_back(SIGHASH_NONE); sig2.push_back(SIGHASH_NONE);
vector<unsigned char> sig3; vector<unsigned char> sig3;
uint256 hash3 = SignatureHash(scriptPubKey, txTo, 0, SIGHASH_SINGLE); uint256 hash3 = SignatureHash(scriptPubKey, txTo, 0, SIGHASH_SINGLE, 0, SIGVERSION_BASE);
BOOST_CHECK(keys[2].Sign(hash3, sig3)); BOOST_CHECK(keys[2].Sign(hash3, sig3));
sig3.push_back(SIGHASH_SINGLE); sig3.push_back(SIGHASH_SINGLE);
@ -979,21 +980,21 @@ BOOST_AUTO_TEST_CASE(script_combineSigs)
CScript complete13 = CScript() << OP_0 << sig1 << sig3; CScript complete13 = CScript() << OP_0 << sig1 << sig3;
CScript complete23 = CScript() << OP_0 << sig2 << sig3; CScript complete23 = CScript() << OP_0 << sig2 << sig3;
combined = CombineSignatures(scriptPubKey, txTo, 0, partial1a, partial1b); combined = CombineSignatures(scriptPubKey, txTo, 0, amount, partial1a, partial1b);
BOOST_CHECK(combined == partial1a); BOOST_CHECK(combined == partial1a);
combined = CombineSignatures(scriptPubKey, txTo, 0, partial1a, partial2a); combined = CombineSignatures(scriptPubKey, txTo, 0, amount, partial1a, partial2a);
BOOST_CHECK(combined == complete12); BOOST_CHECK(combined == complete12);
combined = CombineSignatures(scriptPubKey, txTo, 0, partial2a, partial1a); combined = CombineSignatures(scriptPubKey, txTo, 0, amount, partial2a, partial1a);
BOOST_CHECK(combined == complete12); BOOST_CHECK(combined == complete12);
combined = CombineSignatures(scriptPubKey, txTo, 0, partial1b, partial2b); combined = CombineSignatures(scriptPubKey, txTo, 0, amount, partial1b, partial2b);
BOOST_CHECK(combined == complete12); BOOST_CHECK(combined == complete12);
combined = CombineSignatures(scriptPubKey, txTo, 0, partial3b, partial1b); combined = CombineSignatures(scriptPubKey, txTo, 0, amount, partial3b, partial1b);
BOOST_CHECK(combined == complete13); BOOST_CHECK(combined == complete13);
combined = CombineSignatures(scriptPubKey, txTo, 0, partial2a, partial3a); combined = CombineSignatures(scriptPubKey, txTo, 0, amount, partial2a, partial3a);
BOOST_CHECK(combined == complete23); BOOST_CHECK(combined == complete23);
combined = CombineSignatures(scriptPubKey, txTo, 0, partial3b, partial2b); combined = CombineSignatures(scriptPubKey, txTo, 0, amount, partial3b, partial2b);
BOOST_CHECK(combined == complete23); BOOST_CHECK(combined == complete23);
combined = CombineSignatures(scriptPubKey, txTo, 0, partial3b, partial3a); combined = CombineSignatures(scriptPubKey, txTo, 0, amount, partial3b, partial3a);
BOOST_CHECK(combined == partial3c); BOOST_CHECK(combined == partial3c);
} }

4
src/test/sighash_tests.cpp
Unescape View File

@ -143,7 +143,7 @@ BOOST_AUTO_TEST_CASE(sighash_test)
uint256 sh, sho; uint256 sh, sho;
sho = SignatureHashOld(scriptCode, txTo, nIn, nHashType); sho = SignatureHashOld(scriptCode, txTo, nIn, nHashType);
sh = SignatureHash(scriptCode, txTo, nIn, nHashType); sh = SignatureHash(scriptCode, txTo, nIn, nHashType, 0, SIGVERSION_BASE);
#if defined(PRINT_SIGHASH_JSON) #if defined(PRINT_SIGHASH_JSON)
CDataStream ss(SER_NETWORK, PROTOCOL_VERSION); CDataStream ss(SER_NETWORK, PROTOCOL_VERSION);
ss << txTo; ss << txTo;
@ -209,7 +209,7 @@ BOOST_AUTO_TEST_CASE(sighash_from_data)
continue; continue;
} }
sh = SignatureHash(scriptCode, tx, nIn, nHashType); sh = SignatureHash(scriptCode, tx, nIn, nHashType, 0, SIGVERSION_BASE);
BOOST_CHECK_MESSAGE(sh.GetHex() == sigHashHex, strTest); BOOST_CHECK_MESSAGE(sh.GetHex() == sigHashHex, strTest);
} }
} }

2
src/test/txvalidationcache_tests.cpp
Unescape View File

@ -48,7 +48,7 @@ BOOST_FIXTURE_TEST_CASE(tx_mempool_block_doublespend, TestChain100Setup)
// Sign: // Sign:
std::vector<unsigned char> vchSig; std::vector<unsigned char> vchSig;
uint256 hash = SignatureHash(scriptPubKey, spends[i], 0, SIGHASH_ALL); uint256 hash = SignatureHash(scriptPubKey, spends[i], 0, SIGHASH_ALL, 0, SIGVERSION_BASE);
BOOST_CHECK(coinbaseKey.Sign(hash, vchSig)); BOOST_CHECK(coinbaseKey.Sign(hash, vchSig));
vchSig.push_back((unsigned char)SIGHASH_ALL); vchSig.push_back((unsigned char)SIGHASH_ALL);
spends[i].vin[0].scriptSig << vchSig; spends[i].vin[0].scriptSig << vchSig;

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