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ton/keys/encryptor.h
2019-09-07 14:33:36 +04:00

110 lines
3.8 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 "td/actor/actor.h"
#include "td/utils/buffer.h"
#include "td/utils/Status.h"
#include "td/actor/PromiseFuture.h"
#include "auto/tl/ton_api.h"
namespace ton {
class Encryptor {
public:
virtual td::Result<td::BufferSlice> encrypt(td::Slice data) = 0;
virtual td::Status check_signature(td::Slice message, td::Slice signature) = 0;
virtual ~Encryptor() = default;
static td::Result<std::unique_ptr<Encryptor>> create(const ton_api::PublicKey *id);
};
class Decryptor {
public:
virtual td::Result<td::BufferSlice> decrypt(td::Slice data) = 0;
virtual td::Result<td::BufferSlice> sign(td::Slice data) = 0;
virtual std::vector<td::Result<td::BufferSlice>> sign_batch(std::vector<td::Slice> data);
virtual ~Decryptor() = default;
static td::Result<std::unique_ptr<Decryptor>> create(const ton_api::PrivateKey *id);
};
class EncryptorAsync : public td::actor::Actor {
private:
std::unique_ptr<Encryptor> encryptor_;
public:
EncryptorAsync(std::unique_ptr<Encryptor> encryptor) : encryptor_(std::move(encryptor)) {
}
void check_signature(td::BufferSlice data, td::BufferSlice signature, td::Promise<td::Unit> promise) {
auto res = encryptor_->check_signature(data.as_slice(), signature.as_slice());
if (res.is_ok()) {
promise.set_value(td::Unit());
} else {
promise.set_error(res.move_as_error());
}
}
void encrypt(td::BufferSlice data, td::Promise<td::BufferSlice> promise) {
promise.set_result(encryptor_->encrypt(data.as_slice()));
}
template <class T>
static td::Result<td::actor::ActorOwn<EncryptorAsync>> create(T &id) {
TRY_RESULT(d, Encryptor::create(id));
return td::actor::create_actor<EncryptorAsync>("encryptor", std::move(d));
}
template <class T>
static td::Result<td::actor::ActorOwn<EncryptorAsync>> create(T *id) {
TRY_RESULT(d, Encryptor::create(id));
return td::actor::create_actor<EncryptorAsync>("encryptor", std::move(d));
}
};
class DecryptorAsync : public td::actor::Actor {
private:
std::unique_ptr<Decryptor> decryptor_;
public:
DecryptorAsync(std::unique_ptr<Decryptor> decryptor) : decryptor_(std::move(decryptor)) {
}
auto decrypt(td::BufferSlice data) {
return decryptor_->decrypt(data.as_slice());
}
auto sign(td::BufferSlice data) {
return decryptor_->sign(data.as_slice());
}
auto sign_batch(std::vector<td::BufferSlice> data) {
std::vector<td::Slice> v;
v.resize(data.size());
for (size_t i = 0; i < data.size(); i++) {
v[i] = data[i].as_slice();
}
return decryptor_->sign_batch(v);
}
template <class T>
static td::Result<td::actor::ActorOwn<DecryptorAsync>> create(T &id) {
TRY_RESULT(d, Decryptor::create(id));
return td::actor::create_actor<DecryptorAsync>("decryptor", std::move(d));
}
template <class T>
static td::Result<td::actor::ActorOwn<DecryptorAsync>> create(T *id) {
TRY_RESULT(d, Decryptor::create(id));
return td::actor::create_actor<DecryptorAsync>("decryptor", std::move(d));
}
};
} // namespace ton