1 // Copyright (c) 2019-2020 The Bitcoin Core developers 2 // Distributed under the MIT software license, see the accompanying 3 // file COPYING or http://www.opensource.org/licenses/mit-license.php. 4 5 #ifndef BITCOIN_SIGNET_H 6 #define BITCOIN_SIGNET_H 7 8 #include <consensus/params.h> 9 #include <primitives/block.h> 10 #include <primitives/transaction.h> 11 12 #include <optional> 13 14 /** 15 * Extract signature and check whether a block has a valid solution 16 */ 17 bool CheckSignetBlockSolution(const CBlock& block, const Consensus::Params& consensusParams); 18 19 /** 20 * Generate the signet tx corresponding to the given block 21 * 22 * The signet tx commits to everything in the block except: 23 * 1. It hashes a modified merkle root with the signet signature removed. 24 * 2. It skips the nonce. 25 */ 26 class SignetTxs { 27 template<class T1, class T2> SignetTxs(const T1 & to_spend,const T2 & to_sign)28 SignetTxs(const T1& to_spend, const T2& to_sign) : m_to_spend{to_spend}, m_to_sign{to_sign} { } 29 30 public: 31 static std::optional<SignetTxs> Create(const CBlock& block, const CScript& challenge); 32 33 const CTransaction m_to_spend; 34 const CTransaction m_to_sign; 35 }; 36 37 #endif // BITCOIN_SIGNET_H 38