36 lines
1.2 KiB
C++
36 lines
1.2 KiB
C++
// Copyright (c) 2009-2010 Satoshi Nakamoto
|
|
// Copyright (c) 2009-2015 The Bitcoin Core developers
|
|
// Distributed under the MIT software license, see the accompanying
|
|
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
|
|
|
|
#ifndef BITCOIN_SCRIPT_SIGCACHE_H
|
|
#define BITCOIN_SCRIPT_SIGCACHE_H
|
|
|
|
#include "script/interpreter.h"
|
|
|
|
#include <vector>
|
|
|
|
// DoS prevention: limit cache size to 32MB (over 1000000 entries on 64-bit
|
|
// systems). Due to how we count cache size, actual memory usage is slightly
|
|
// more (~32.25 MB)
|
|
static const unsigned int DEFAULT_MAX_SIG_CACHE_SIZE = 32;
|
|
// Maximum sig cache size allowed
|
|
static const int64_t MAX_MAX_SIG_CACHE_SIZE = 16384;
|
|
|
|
class CPubKey;
|
|
|
|
class CachingTransactionSignatureChecker : public TransactionSignatureChecker
|
|
{
|
|
private:
|
|
bool store;
|
|
|
|
public:
|
|
CachingTransactionSignatureChecker(const CTransaction* txToIn, unsigned int nInIn, bool storeIn=true) : TransactionSignatureChecker(txToIn, nInIn), store(storeIn) {}
|
|
|
|
bool VerifySignature(const std::vector<unsigned char>& vchSig, const CPubKey& vchPubKey, const uint256& sighash) const override;
|
|
};
|
|
|
|
void InitSignatureCache();
|
|
|
|
#endif // BITCOIN_SCRIPT_SIGCACHE_H
|