1 /************************************************************************* 2 * 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * Copyright 2000, 2010 Oracle and/or its affiliates. 6 * 7 * OpenOffice.org - a multi-platform office productivity suite 8 * 9 * This file is part of OpenOffice.org. 10 * 11 * OpenOffice.org is free software: you can redistribute it and/or modify 12 * it under the terms of the GNU Lesser General Public License version 3 13 * only, as published by the Free Software Foundation. 14 * 15 * OpenOffice.org is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 * GNU Lesser General Public License version 3 for more details 19 * (a copy is included in the LICENSE file that accompanied this code). 20 * 21 * You should have received a copy of the GNU Lesser General Public License 22 * version 3 along with OpenOffice.org. If not, see 23 * <http://www.openoffice.org/license.html> 24 * for a copy of the LGPLv3 License. 25 * 26 ************************************************************************/ 27 28 // MARKER(update_precomp.py): autogen include statement, do not remove 29 #include "precompiled_svl.hxx" 30 31 #include <svl/PasswordHelper.hxx> 32 #include <rtl/digest.h> 33 #include <tools/string.hxx> 34 35 using namespace com::sun::star; 36 37 void SvPasswordHelper::GetHashPassword(uno::Sequence<sal_Int8>& rPassHash, const sal_Char* pPass, sal_uInt32 nLen) 38 { 39 rPassHash.realloc(RTL_DIGEST_LENGTH_SHA1); 40 41 rtlDigestError aError = rtl_digest_SHA1 (pPass, nLen, reinterpret_cast<sal_uInt8*>(rPassHash.getArray()), rPassHash.getLength()); 42 if (aError != rtl_Digest_E_None) 43 { 44 rPassHash.realloc(0); 45 } 46 } 47 48 void SvPasswordHelper::GetHashPasswordLittleEndian(uno::Sequence<sal_Int8>& rPassHash, const String& sPass) 49 { 50 xub_StrLen nSize(sPass.Len()); 51 sal_Char* pCharBuffer = new sal_Char[nSize * sizeof(sal_Unicode)]; 52 53 for (xub_StrLen i = 0; i < nSize; ++i) 54 { 55 sal_Unicode ch(sPass.GetChar(i)); 56 pCharBuffer[2 * i] = static_cast< sal_Char >(ch & 0xFF); 57 pCharBuffer[2 * i + 1] = static_cast< sal_Char >(ch >> 8); 58 } 59 60 GetHashPassword(rPassHash, pCharBuffer, nSize * sizeof(sal_Unicode)); 61 62 delete[] pCharBuffer; 63 } 64 65 void SvPasswordHelper::GetHashPasswordBigEndian(uno::Sequence<sal_Int8>& rPassHash, const String& sPass) 66 { 67 xub_StrLen nSize(sPass.Len()); 68 sal_Char* pCharBuffer = new sal_Char[nSize * sizeof(sal_Unicode)]; 69 70 for (xub_StrLen i = 0; i < nSize; ++i) 71 { 72 sal_Unicode ch(sPass.GetChar(i)); 73 pCharBuffer[2 * i] = static_cast< sal_Char >(ch >> 8); 74 pCharBuffer[2 * i + 1] = static_cast< sal_Char >(ch & 0xFF); 75 } 76 77 GetHashPassword(rPassHash, pCharBuffer, nSize * sizeof(sal_Unicode)); 78 79 delete[] pCharBuffer; 80 } 81 82 void SvPasswordHelper::GetHashPassword(uno::Sequence<sal_Int8>& rPassHash, const String& sPass) 83 { 84 GetHashPasswordLittleEndian(rPassHash, sPass); 85 } 86 87 bool SvPasswordHelper::CompareHashPassword(const uno::Sequence<sal_Int8>& rOldPassHash, const String& sNewPass) 88 { 89 bool bResult = false; 90 91 uno::Sequence<sal_Int8> aNewPass(RTL_DIGEST_LENGTH_SHA1); 92 GetHashPasswordLittleEndian(aNewPass, sNewPass); 93 if (aNewPass == rOldPassHash) 94 bResult = true; 95 else 96 { 97 GetHashPasswordBigEndian(aNewPass, sNewPass); 98 bResult = (aNewPass == rOldPassHash); 99 } 100 101 return bResult; 102 } 103 104