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Precompute sighashes

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Original version by Nicolas Dorier. Precomputing version by Pieter Wuille.
This commit is contained in:
Pieter Wuille
2016-08-16 15:35:45 +02:00
parent 2c2d471e18
commit d2c5d044d0
8 changed files with 78 additions and 38 deletions
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4
src/script/bitcoinconsensus.cpp
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@@ -84,8 +84,8 @@ static int verify_script(const unsigned char *scriptPubKey, unsigned int scriptP
// 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, amount), NULL);
CachedHashes cachedHashes(tx);
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, amount, cachedHashes), NULL);
} catch (const std::exception&) {
return set_error(err, bitcoinconsensus_ERR_TX_DESERIALIZE); // Error deserializing
}