tdesktop/Telegram/SourceFiles/mtproto/rsa_public_key.h

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/*
This file is part of Telegram Desktop,
the official desktop version of Telegram messaging app, see https://telegram.org
Telegram Desktop is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
It 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 General Public License for more details.
In addition, as a special exception, the copyright holders give permission
to link the code of portions of this program with the OpenSSL library.
Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
*/
#pragma once
namespace MTP {
namespace internal {
// this class holds an RSA public key and can encrypt fixed-size messages with it
class RSAPublicKey final {
public:
// key in RSAPublicKey "-----BEGIN RSA PUBLIC KEY----- ..." format
RSAPublicKey() = default;
explicit RSAPublicKey(base::const_byte_span key);
RSAPublicKey(base::const_byte_span nBytes, base::const_byte_span eBytes);
RSAPublicKey(RSAPublicKey &&other) = default;
RSAPublicKey(const RSAPublicKey &other) = default;
RSAPublicKey &operator=(RSAPublicKey &&other) = default;
RSAPublicKey &operator=(const RSAPublicKey &other) = default;
bool isValid() const;
uint64 getFingerPrint() const;
base::byte_vector getN() const;
base::byte_vector getE() const;
// data has exactly 256 chars to be encrypted
base::byte_vector encrypt(base::const_byte_span data) const;
private:
class Private;
std::shared_ptr<Private> _private;
};
} // namespace internal
} // namespace MTP