diff options
Diffstat (limited to 'src/script/interpreter.h')
-rw-r--r-- | src/script/interpreter.h | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/src/script/interpreter.h b/src/script/interpreter.h index bd2f211663..0adc9482ff 100644 --- a/src/script/interpreter.h +++ b/src/script/interpreter.h @@ -94,17 +94,32 @@ enum // Making v1-v16 witness program non-standard // SCRIPT_VERIFY_DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM = (1U << 12), + + // Segwit script only: Require the argument of OP_IF/NOTIF to be exactly 0x01 or empty vector + // + SCRIPT_VERIFY_MINIMALIF = (1U << 13), + + // Signature(s) must be empty vector if an CHECK(MULTI)SIG operation failed + // + SCRIPT_VERIFY_NULLFAIL = (1U << 14), }; bool CheckSignatureEncoding(const std::vector<unsigned char> &vchSig, unsigned int flags, ScriptError* serror); +struct PrecomputedTransactionData +{ + uint256 hashPrevouts, hashSequence, hashOutputs; + + PrecomputedTransactionData(const CTransaction& tx); +}; + 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); +uint256 SignatureHash(const CScript &scriptCode, const CTransaction& txTo, unsigned int nIn, int nHashType, const CAmount& amount, SigVersion sigversion, const PrecomputedTransactionData* cache = NULL); class BaseSignatureChecker { @@ -133,12 +148,14 @@ private: const CTransaction* txTo; unsigned int nIn; const CAmount amount; + const PrecomputedTransactionData* txdata; 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, const CAmount& amountIn) : txTo(txToIn), nIn(nInIn), amount(amountIn) {} + TransactionSignatureChecker(const CTransaction* txToIn, unsigned int nInIn, const CAmount& amountIn) : txTo(txToIn), nIn(nInIn), amount(amountIn), txdata(NULL) {} + TransactionSignatureChecker(const CTransaction* txToIn, unsigned int nInIn, const CAmount& amountIn, const PrecomputedTransactionData& txdataIn) : txTo(txToIn), nIn(nInIn), amount(amountIn), txdata(&txdataIn) {} 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 CheckSequence(const CScriptNum& nSequence) const; |