src/consensus/merkle.h

   1 // Copyright (c) 2015-2017 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_MERKLE
   6 #define BITCOIN_MERKLE
   7
   8 #include <stdint.h>
   9 #include <vector>
  10
  11 #include <primitives/transaction.h>
  12 #include <primitives/block.h>
  13 #include <uint256.h>
  14
  15 uint256 ComputeMerkleRoot(const std::vector<uint256>& leaves, bool* mutated = nullptr);
  16 std::vector<uint256> ComputeMerkleBranch(const std::vector<uint256>& leaves, uint32_t position);
  17 uint256 ComputeMerkleRootFromBranch(const uint256& leaf, const std::vector<uint256>& branch, uint32_t position);
  18
  19 /*
  20  * Compute the Merkle root of the transactions in a block.
  21  * *mutated is set to true if a duplicated subtree was found.
  22  */
  23 uint256 BlockMerkleRoot(const CBlock& block, bool* mutated = nullptr);
  24
  25 /*
  26  * Compute the Merkle root of the witness transactions in a block.
  27  * *mutated is set to true if a duplicated subtree was found.
  28  */
  29 uint256 BlockWitnessMerkleRoot(const CBlock& block, bool* mutated = nullptr);
  30
  31 /*
  32  * Compute the Merkle branch for the tree of transactions in a block, for a
  33  * given position.
  34  * This can be verified using ComputeMerkleRootFromBranch.
  35  */
  36 std::vector<uint256> BlockMerkleBranch(const CBlock& block, uint32_t position);
  37
  38 #endif