diff options
Diffstat (limited to 'src/script')
-rw-r--r-- | src/script/sign.cpp | 20 | ||||
-rw-r--r-- | src/script/sign.h | 2 |
2 files changed, 18 insertions, 4 deletions
diff --git a/src/script/sign.cpp b/src/script/sign.cpp index da0092f9e3..fe5cec89b0 100644 --- a/src/script/sign.cpp +++ b/src/script/sign.cpp @@ -14,7 +14,19 @@ typedef std::vector<unsigned char> valtype; -MutableTransactionSignatureCreator::MutableTransactionSignatureCreator(const CMutableTransaction* txToIn, unsigned int nInIn, const CAmount& amountIn, int nHashTypeIn) : txTo(txToIn), nIn(nInIn), nHashType(nHashTypeIn), amount(amountIn), checker(txTo, nIn, amountIn, MissingDataBehavior::FAIL) {} +MutableTransactionSignatureCreator::MutableTransactionSignatureCreator(const CMutableTransaction* txToIn, unsigned int nInIn, const CAmount& amountIn, int nHashTypeIn) + : txTo(txToIn), nIn(nInIn), nHashType(nHashTypeIn), amount(amountIn), checker(txTo, nIn, amountIn, MissingDataBehavior::FAIL), + m_txdata(nullptr) +{ +} + +MutableTransactionSignatureCreator::MutableTransactionSignatureCreator(const CMutableTransaction* txToIn, unsigned int nInIn, const CAmount& amountIn, const PrecomputedTransactionData* txdata, int nHashTypeIn) + : txTo(txToIn), nIn(nInIn), nHashType(nHashTypeIn), amount(amountIn), + checker(txdata ? MutableTransactionSignatureChecker(txTo, nIn, amount, *txdata, MissingDataBehavior::FAIL) : + MutableTransactionSignatureChecker(txTo, nIn, amount, MissingDataBehavior::FAIL)), + m_txdata(txdata) +{ +} bool MutableTransactionSignatureCreator::CreateSig(const SigningProvider& provider, std::vector<unsigned char>& vchSig, const CKeyID& address, const CScript& scriptCode, SigVersion sigversion) const { @@ -26,10 +38,10 @@ bool MutableTransactionSignatureCreator::CreateSig(const SigningProvider& provid if (sigversion == SigVersion::WITNESS_V0 && !key.IsCompressed()) return false; - // Signing for witness scripts needs the amount. - if (sigversion == SigVersion::WITNESS_V0 && amount < 0) return false; + // Signing without known amount does not work in witness scripts. + if (sigversion == SigVersion::WITNESS_V0 && !MoneyRange(amount)) return false; - uint256 hash = SignatureHash(scriptCode, *txTo, nIn, nHashType, amount, sigversion); + uint256 hash = SignatureHash(scriptCode, *txTo, nIn, nHashType, amount, sigversion, m_txdata); if (!key.Sign(hash, vchSig)) return false; vchSig.push_back((unsigned char)nHashType); diff --git a/src/script/sign.h b/src/script/sign.h index a1cfe1574d..7abc6d006d 100644 --- a/src/script/sign.h +++ b/src/script/sign.h @@ -40,9 +40,11 @@ class MutableTransactionSignatureCreator : public BaseSignatureCreator { int nHashType; CAmount amount; const MutableTransactionSignatureChecker checker; + const PrecomputedTransactionData* m_txdata; public: MutableTransactionSignatureCreator(const CMutableTransaction* txToIn, unsigned int nInIn, const CAmount& amountIn, int nHashTypeIn = SIGHASH_ALL); + MutableTransactionSignatureCreator(const CMutableTransaction* txToIn, unsigned int nInIn, const CAmount& amountIn, const PrecomputedTransactionData* txdata, int nHashTypeIn = SIGHASH_ALL); const BaseSignatureChecker& Checker() const override { return checker; } bool CreateSig(const SigningProvider& provider, std::vector<unsigned char>& vchSig, const CKeyID& keyid, const CScript& scriptCode, SigVersion sigversion) const override; }; |