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ton/crypto/vm/cells/MerkleProof.h
ton 9d6853ef24 liteclient signature check support
1. update liteclient/liteserver. Now liteserver sends signatures of
blocks and liteclient checks them. I.e. liteclient completely checks
received data.
2. validator-engine: more GC options
3. blockchain-explorer: show all block transactions (instead of 256)
4. some bugfixes
2019-09-14 18:14:55 +04:00

66 lines
2.2 KiB
C++

/*
This file is part of TON Blockchain Library.
TON Blockchain Library is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
TON Blockchain Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with TON Blockchain Library. If not, see <http://www.gnu.org/licenses/>.
Copyright 2017-2019 Telegram Systems LLP
*/
#pragma once
#include "vm/cells/Cell.h"
#include "td/utils/buffer.h"
#include <utility>
#include <functional>
namespace vm {
class MerkleProof {
public:
using IsPrunnedFunction = std::function<bool(const Ref<Cell> &)>;
// works with proofs wrapped in MerkleProof special cell
// cells must have zero level
static Ref<Cell> generate(Ref<Cell> cell, IsPrunnedFunction is_prunned);
static Ref<Cell> generate(Ref<Cell> cell, CellUsageTree *usage_tree);
// cell must have zero level and must be a MerkleProof
static Ref<Cell> virtualize(Ref<Cell> cell, int virtualization);
static Ref<Cell> combine(Ref<Cell> a, Ref<Cell> b);
// works with upwrapped proofs
// works fine with cell of non-zero level, but this is not supported (yet?) in MerkeProof special cell
static Ref<Cell> generate_raw(Ref<Cell> cell, IsPrunnedFunction is_prunned);
static Ref<Cell> generate_raw(Ref<Cell> cell, CellUsageTree *usage_tree);
static Ref<Cell> virtualize_raw(Ref<Cell> cell, Cell::VirtualizationParameters virt);
};
class MerkleProofBuilder {
std::shared_ptr<CellUsageTree> usage_tree;
Ref<vm::Cell> orig_root, usage_root;
public:
MerkleProofBuilder(Ref<Cell> root);
void reset(Ref<Cell> root);
void clear();
Ref<Cell> root() const {
return usage_root;
}
Ref<Cell> extract_proof() const;
bool extract_proof_to(Ref<Cell> &proof_root) const;
td::Result<td::BufferSlice> extract_proof_boc() const;
};
} // namespace vm