/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
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 */

#ifndef INCLUDED_SVL_PASSWORDHELPER_HXX
#define INCLUDED_SVL_PASSWORDHELPER_HXX

#include <svl/svldllapi.h>
#include <sal/types.h>
#include <com/sun/star/uno/Sequence.hxx>

class SvPasswordHelper
{
    static void     GetHashPasswordLittleEndian(css::uno::Sequence<sal_Int8>& rPassHash, const OUString& sPass);
    static void     GetHashPasswordBigEndian(css::uno::Sequence<sal_Int8>& rPassHash, const OUString& sPass);

public:
    SVL_DLLPUBLIC static void     GetHashPassword(css::uno::Sequence <sal_Int8>& rPassHash, const sal_Char* pPass, sal_uInt32 nLen);

    SVL_DLLPUBLIC static void     GetHashPassword(css::uno::Sequence<sal_Int8>& rPassHash, const OUString& sPass);
    SVL_DLLPUBLIC static void     GetHashPasswordSHA1UTF8(css::uno::Sequence<sal_Int8>& rPassHash, const OUString& sPass);
    SVL_DLLPUBLIC static void     GetHashPasswordSHA256(css::uno::Sequence<sal_Int8>& rPassHash, const OUString& sPass);
    /**
    Use this method to compare a given string with another given Hash value.
    This is necessary, because in older versions exists different hashes of the same string. They were endian dependent.
    We need this to handle old files. This method will compare against big and
    little endian UTF-16.
    tdf#115483: also check 2 different new ways of hashing that were added in
    ODF 1.2, requiring UTF-8 encoding.
    */
    SVL_DLLPUBLIC static bool     CompareHashPassword(const css::uno::Sequence<sal_Int8>& rOldPassHash, const OUString& sNewPass);
};

#endif

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