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Diffstat (limited to 'svl/source/misc/PasswordHelper.cxx')
-rw-r--r-- | svl/source/misc/PasswordHelper.cxx | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/svl/source/misc/PasswordHelper.cxx b/svl/source/misc/PasswordHelper.cxx new file mode 100644 index 000000000000..a1125306eb7b --- /dev/null +++ b/svl/source/misc/PasswordHelper.cxx @@ -0,0 +1,109 @@ +/************************************************************************* + * + * 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; +} + |