mirror of
https://github.com/ton-blockchain/ton
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a31f8d4424
- compiles vs BoringSSL - config proposal/vote fift code - bugfixes in catchain - other small fixes
63 lines
2.3 KiB
C
63 lines
2.3 KiB
C
/*
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This file is part of TON Blockchain Library.
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TON Blockchain Library is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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TON Blockchain Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with TON Blockchain Library. If not, see <http://www.gnu.org/licenses/>.
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Copyright 2017-2020 Telegram Systems LLP
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*/
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#pragma once
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#include "vm/cells/Cell.h"
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#include "vm/cells/CellBuilder.h"
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#include "vm/cells/DataCell.h"
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#include "vm/cells/UsageCell.h"
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#include "vm/cells/VirtualCell.h"
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// H_i(cell) = H(cell_i)
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// cell.hash = sha256(
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// d1, d2,
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// (level == 0 || special_type == PrunnedBranch) ? data : cell_(level - 1).hash,
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// for child in refs:
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// child.depth, child.hash
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// )
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// lower hashes of Prunned branch are calculated from its data
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// cell_i.ref[j] = (special_type == MerkleProof || special_type == MerkleUpdate) ? cell.ref[j]_(i+1) : cell.ref[j]_i
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//
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// Ordinary cell:
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// cell_i.data = cell.data
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// cell_i.level_mask = cell.level_mask & ((1<<i) - 1)
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// (cell_i.level_mask = == BinaryOr(cell_i.ref[j].level_mask))
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// cell_i.level = 32 - count_leading_zeroes32(cell_i.level_mask)
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// cell_i.depth = if cell_i.has_ref then max(cell_i.ref[j].depth) + 1 else 0
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// cell_i.ref[j] = cell.ref[j]
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//
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//
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// Prunned branch
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// cell.level_mask = prunned_cell.level_mask + (1 << (cell.level + 1))
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// cell.level = <default> == cell.level + 1
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// cell_i = if i < cell.level then prunned_cell_i
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// prunned_cell.data = EXCEPTION
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// prunned_cell_i.hash = <from cell.data>
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// prunned_cell.level_mask = cell.level_mask ^ (1 << cell.level)
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// prunned_cell.level = <default>
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// prunned_cell_i.depth = <from cell.data>
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//
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// Merkle proof
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// cell.level_mask = proof_cell.level_mask >> 1
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// cell.level = <default> == max(0, proof.cell.level - 1)
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// cell_i.data = <default>
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// cell_i.level_mask = <default>
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// cell_i.ref[j] = cell.ref[j]_(i+1)
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// cell_i.depth = max_j(1 + cell_i.ref[j].depth)
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