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2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
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7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
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11 * http://www.apache.org/licenses/LICENSE-2.0
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15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
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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
GetHashPassword(uno::Sequence<sal_Int8> & rPassHash,const sal_Char * pPass,sal_uInt32 nLen)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
GetHashPasswordLittleEndian(uno::Sequence<sal_Int8> & rPassHash,const String & sPass)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
GetHashPasswordBigEndian(uno::Sequence<sal_Int8> & rPassHash,const String & sPass)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
GetHashPassword(uno::Sequence<sal_Int8> & rPassHash,const String & sPass)78 void SvPasswordHelper::GetHashPassword(uno::Sequence<sal_Int8>& rPassHash, const String& sPass)
79 {
80 GetHashPasswordLittleEndian(rPassHash, sPass);
81 }
82
CompareHashPassword(const uno::Sequence<sal_Int8> & rOldPassHash,const String & sNewPass)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