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// Copyright (c) 2019-2020 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_SIGNET_H
#define BITCOIN_SIGNET_H
#include <consensus/params.h>
#include <primitives/block.h>
#include <primitives/transaction.h>
/**
* Extract signature and check whether a block has a valid solution
*/
bool CheckSignetBlockSolution(const CBlock& block, const Consensus::Params& consensusParams);
/**
* Generate the signet tx corresponding to the given block
*
* The signet tx commits to everything in the block except:
* 1. It hashes a modified merkle root with the signet signature removed.
* 2. It skips the nonce.
*/
class SignetTxs {
private:
struct invalid {};
SignetTxs(invalid i) : m_to_spend(), m_to_sign(), m_valid(false) { }
template<class T1, class T2>
SignetTxs(const T1& to_spend, const T2& to_sign) : m_to_spend{to_spend}, m_to_sign{to_sign}, m_valid(true) { }
static SignetTxs Create(const CBlock& block, const CScript& challenge);
public:
SignetTxs(const CBlock& block, const CScript& challenge) : SignetTxs(Create(block, challenge)) { }
const CTransaction m_to_spend;
const CTransaction m_to_sign;
const bool m_valid;
};
#endif // BITCOIN_SIGNET_H
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