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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2008 by Sun Microsystems, Inc.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: PasswordHelper.cxx,v $
* $Revision: 1.5 $
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org 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 version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_svl.hxx"
#ifndef GCC
#endif
#include "PasswordHelper.hxx"
#include <rtl/digest.h>
#include <tools/string.hxx>
using namespace com::sun::star;
void SvPasswordHelper::GetHashPassword(uno::Sequence<sal_Int8>& rPassHash, const sal_Char* pPass, sal_uInt32 nLen)
{
rPassHash.realloc(RTL_DIGEST_LENGTH_SHA1);
rtlDigestError aError = rtl_digest_SHA1 (pPass, nLen, reinterpret_cast<sal_uInt8*>(rPassHash.getArray()), rPassHash.getLength());
if (aError != rtl_Digest_E_None)
{
rPassHash.realloc(0);
}
}
void SvPasswordHelper::GetHashPasswordLittleEndian(uno::Sequence<sal_Int8>& rPassHash, const String& sPass)
{
xub_StrLen nSize(sPass.Len());
sal_Char* pCharBuffer = new sal_Char[nSize * sizeof(sal_Unicode)];
for (xub_StrLen i = 0; i < nSize; ++i)
{
sal_Unicode ch(sPass.GetChar(i));
pCharBuffer[2 * i] = static_cast< sal_Char >(ch & 0xFF);
pCharBuffer[2 * i + 1] = static_cast< sal_Char >(ch >> 8);
}
GetHashPassword(rPassHash, pCharBuffer, nSize * sizeof(sal_Unicode));
delete[] pCharBuffer;
}
void SvPasswordHelper::GetHashPasswordBigEndian(uno::Sequence<sal_Int8>& rPassHash, const String& sPass)
{
xub_StrLen nSize(sPass.Len());
sal_Char* pCharBuffer = new sal_Char[nSize * sizeof(sal_Unicode)];
for (xub_StrLen i = 0; i < nSize; ++i)
{
sal_Unicode ch(sPass.GetChar(i));
pCharBuffer[2 * i] = static_cast< sal_Char >(ch >> 8);
pCharBuffer[2 * i + 1] = static_cast< sal_Char >(ch & 0xFF);
}
GetHashPassword(rPassHash, pCharBuffer, nSize * sizeof(sal_Unicode));
delete[] pCharBuffer;
}
void SvPasswordHelper::GetHashPassword(uno::Sequence<sal_Int8>& rPassHash, const String& sPass)
{
GetHashPasswordLittleEndian(rPassHash, sPass);
}
bool SvPasswordHelper::CompareHashPassword(const uno::Sequence<sal_Int8>& rOldPassHash, const String& sNewPass)
{
bool bResult = false;
uno::Sequence<sal_Int8> aNewPass(RTL_DIGEST_LENGTH_SHA1);
GetHashPasswordLittleEndian(aNewPass, sNewPass);
if (aNewPass == rOldPassHash)
bResult = true;
else
{
GetHashPasswordBigEndian(aNewPass, sNewPass);
bResult = (aNewPass == rOldPassHash);
}
return bResult;
}
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