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Precompute sighashes

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Original version by Nicolas Dorier. Precomputing version by Pieter Wuille.

Edited for Zcash by Ariel Gabizon and Jack Grigg
This commit is contained in:
Pieter Wuille
2018-01-01 13:27:59 +02:00
committed by Jack Grigg
parent 722d811f89
commit f762d44973
10 changed files with 84 additions and 38 deletions
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4
src/script/zcashconsensus.cpp
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@@ -84,9 +84,9 @@ int zcashconsensus_verify_script(const unsigned char *scriptPubKey, unsigned int
// Regardless of the verification result, the tx did not error.
set_error(err, zcashconsensus_ERR_OK);
CachedHashes cachedHashes(tx);
CAmount am(0);
return VerifyScript(tx.vin[nIn].scriptSig, CScript(scriptPubKey, scriptPubKey + scriptPubKeyLen), flags, TransactionSignatureChecker(&tx, nIn, am), NULL);
return VerifyScript(tx.vin[nIn].scriptSig, CScript(scriptPubKey, scriptPubKey + scriptPubKeyLen), flags, TransactionSignatureChecker(&tx, nIn, am, cachedHashes), NULL);
} catch (const std::exception&) {
return set_error(err, zcashconsensus_ERR_TX_DESERIALIZE); // Error deserializing
}