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Add precomputed txdata support to MutableTransactionSignatureCreator

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This provides a means to pass in a PrecomputedTransactionData object to
the MutableTransactionSignatureCreator, allowing the prevout data to be
passed into the signature hashers. It is also more efficient.
This commit is contained in:
Pieter Wuille
2021-02-17 18:57:19 -08:00
parent a91d532338
commit e841fb503d
2 changed files with 18 additions and 4 deletions
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2
src/script/sign.h
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@@ -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;
};