/*
 * (c) Copyright Ascensio System SIA 2010-2016
 *
 * This program is a free software product. You can redistribute it and/or
 * modify it under the terms of the GNU Affero General Public License (AGPL)
 * version 3 as published by the Free Software Foundation. In accordance with
 * Section 7(a) of the GNU AGPL its Section 15 shall be amended to the effect
 * that Ascensio System SIA expressly excludes the warranty of non-infringement
 * of any third-party rights.
 *
 * This program is distributed WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR  PURPOSE. For
 * details, see the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
 *
 * You can contact Ascensio System SIA at Lubanas st. 125a-25, Riga, Latvia,
 * EU, LV-1021.
 *
 * The  interactive user interfaces in modified source and object code versions
 * of the Program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU AGPL version 3.
 *
 * Pursuant to Section 7(b) of the License you must retain the original Product
 * logo when distributing the program. Pursuant to Section 7(e) we decline to
 * grant you any rights under trademark law for use of our trademarks.
 *
 * All the Product's GUI elements, including illustrations and icon sets, as
 * well as technical writing content are licensed under the terms of the
 * Creative Commons Attribution-ShareAlike 4.0 International. See the License
 * terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
 *
 */
#pragma once

#include <string>
#include <boost/shared_ptr.hpp>
#include "../../../../Common/DocxFormat/Source/Base/Types_32.h"

namespace CRYPT
{
	struct CryptRC4Data
	{
		struct SALT_TAG 
		{
			_UINT32 b1;
			_UINT32 b2;
			_UINT32 b3;
			_UINT32 b4;
		} Salt;

		struct ENCRYPTED_VERIFIER_TAG 
		{
			_UINT32 b1;
			_UINT32 b2;
			_UINT32 b3;
			_UINT32 b4;
		} EncryptedVerifier;

		struct ENCRYPTED_VERIFIER_HASH_TAG 
		{
			_UINT32 b1;
			_UINT32 b2;
			_UINT32 b3;
			_UINT32 b4;
		} EncryptedVerifierHash;
	};

	class Crypt
	{
	public:

		virtual void Encrypt(char* data, const size_t size) = 0;
		virtual void Decrypt(char* data, const size_t size, const unsigned long stream_pos) = 0;

		typedef enum
		{
			RC4,
			RC4CryptoAPI,
			XOR
		} crypt_type;

		virtual bool IsVerify() = 0;

	};

	typedef boost::shared_ptr<Crypt> CryptPtr;

} // namespace CRYPT