DanS
d6ba1aed4e
- Add CheckRandomXSolution() to validate RandomX PoW in nSolution field - Add ASSETCHAINS_RANDOMX_VALIDATION activation height per chain (DRAGONX: 2838976, TUMIN: 1200, others: height 1) - Add CRandomXInput serializer for deterministic RandomX hash input - Fix CheckProofOfWork() to properly reject invalid PoW (was missing SMART_CHAIN_SYMBOL check, allowing bypass) - Call CheckRandomXSolution() in hush_checkPOW and CheckBlockHeader Without this fix, attackers could submit blocks with invalid RandomX hashes that passed validation, as CheckProofOfWork returned early during block loading and the nSolution field was never verified.
61 lines
3.1 KiB
C++
61 lines
3.1 KiB
C++
// Copyright (c) 2009-2010 Satoshi Nakamoto
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// Copyright (c) 2009-2014 The Bitcoin Core developers
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// Copyright (c) 2016-2024 The Hush developers
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// Distributed under the GPLv3 software license, see the accompanying
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// file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
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/******************************************************************************
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* Copyright © 2014-2019 The SuperNET Developers. *
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* *
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* See the AUTHORS, DEVELOPER-AGREEMENT and LICENSE files at *
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* the top-level directory of this distribution for the individual copyright *
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* holder information and the developer policies on copyright and licensing. *
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* *
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* Unless otherwise agreed in a custom licensing agreement, no part of the *
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* SuperNET software, including this file may be copied, modified, propagated *
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* or distributed except according to the terms contained in the LICENSE file *
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* *
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* Removal or modification of this copyright notice is prohibited. *
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* *
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******************************************************************************/
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#ifndef HUSH_POW_H
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#define HUSH_POW_H
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#include "chain.h"
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#include "consensus/params.h"
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#include <stdint.h>
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class CBlockHeader;
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class CBlockIndex;
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class CChainParams;
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class uint256;
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class arith_uint256;
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unsigned int GetNextWorkRequired(const CBlockIndex* pindexLast, const CBlockHeader *pblock, const Consensus::Params&);
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unsigned int CalculateNextWorkRequired(arith_uint256 bnAvg,
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int64_t nLastBlockTime, int64_t nFirstBlockTime,
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const Consensus::Params&, int32_t height);
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/** Check whether the Equihash solution in a block header is valid */
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bool CheckEquihashSolution(const CBlockHeader *pblock, const CChainParams&);
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/** Check whether a block header contains a valid RandomX solution */
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bool CheckRandomXSolution(const CBlockHeader *pblock, int32_t height);
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/** Set thread-local flag to skip RandomX validation (used by miner during TestBlockValidity) */
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void SetSkipRandomXValidation(bool skip);
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/** Return the RandomX key rotation interval in blocks */
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int GetRandomXInterval();
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/** Return the RandomX key change lag in blocks */
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int GetRandomXBlockLag();
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/** Check whether a block hash satisfies the proof-of-work requirement specified by nBits */
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bool CheckProofOfWork(const CBlockHeader &blkHeader, uint8_t *pubkey33, int32_t height, const Consensus::Params& params);
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CChainPower GetBlockProof(const CBlockIndex& block);
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/** Return the time it would take to redo the work difference between from and to, assuming the current hashrate corresponds to the difficulty at tip, in seconds. */
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int64_t GetBlockProofEquivalentTime(const CBlockIndex& to, const CBlockIndex& from, const CBlockIndex& tip, const Consensus::Params&);
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#endif // HUSH_POW_H
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