1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23 24 // MARKER(update_precomp.py): autogen include statement, do not remove 25 #include "precompiled_svl.hxx" 26 27 #include <svl/PasswordHelper.hxx> 28 #include <rtl/digest.h> 29 #include <tools/string.hxx> 30 31 using namespace com::sun::star; 32 33 void SvPasswordHelper::GetHashPassword(uno::Sequence<sal_Int8>& rPassHash, const sal_Char* pPass, sal_uInt32 nLen) 34 { 35 rPassHash.realloc(RTL_DIGEST_LENGTH_SHA1); 36 37 rtlDigestError aError = rtl_digest_SHA1 (pPass, nLen, reinterpret_cast<sal_uInt8*>(rPassHash.getArray()), rPassHash.getLength()); 38 if (aError != rtl_Digest_E_None) 39 { 40 rPassHash.realloc(0); 41 } 42 } 43 44 void SvPasswordHelper::GetHashPasswordLittleEndian(uno::Sequence<sal_Int8>& rPassHash, const String& sPass) 45 { 46 xub_StrLen nSize(sPass.Len()); 47 sal_Char* pCharBuffer = new sal_Char[nSize * sizeof(sal_Unicode)]; 48 49 for (xub_StrLen i = 0; i < nSize; ++i) 50 { 51 sal_Unicode ch(sPass.GetChar(i)); 52 pCharBuffer[2 * i] = static_cast< sal_Char >(ch & 0xFF); 53 pCharBuffer[2 * i + 1] = static_cast< sal_Char >(ch >> 8); 54 } 55 56 GetHashPassword(rPassHash, pCharBuffer, nSize * sizeof(sal_Unicode)); 57 58 delete[] pCharBuffer; 59 } 60 61 void SvPasswordHelper::GetHashPasswordBigEndian(uno::Sequence<sal_Int8>& rPassHash, const String& sPass) 62 { 63 xub_StrLen nSize(sPass.Len()); 64 sal_Char* pCharBuffer = new sal_Char[nSize * sizeof(sal_Unicode)]; 65 66 for (xub_StrLen i = 0; i < nSize; ++i) 67 { 68 sal_Unicode ch(sPass.GetChar(i)); 69 pCharBuffer[2 * i] = static_cast< sal_Char >(ch >> 8); 70 pCharBuffer[2 * i + 1] = static_cast< sal_Char >(ch & 0xFF); 71 } 72 73 GetHashPassword(rPassHash, pCharBuffer, nSize * sizeof(sal_Unicode)); 74 75 delete[] pCharBuffer; 76 } 77 78 void SvPasswordHelper::GetHashPassword(uno::Sequence<sal_Int8>& rPassHash, const String& sPass) 79 { 80 GetHashPasswordLittleEndian(rPassHash, sPass); 81 } 82 83 bool SvPasswordHelper::CompareHashPassword(const uno::Sequence<sal_Int8>& rOldPassHash, const String& sNewPass) 84 { 85 bool bResult = false; 86 87 uno::Sequence<sal_Int8> aNewPass(RTL_DIGEST_LENGTH_SHA1); 88 GetHashPasswordLittleEndian(aNewPass, sNewPass); 89 if (aNewPass == rOldPassHash) 90 bResult = true; 91 else 92 { 93 GetHashPasswordBigEndian(aNewPass, sNewPass); 94 bResult = (aNewPass == rOldPassHash); 95 } 96 97 return bResult; 98 } 99 100