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comparison Resources/Orthanc/Core/DicomFormat/DicomInstanceHasher.h @ 200:03afbee0cc7b

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integration of Orthanc core into Stone
author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 23 Mar 2018 11:04:03 +0100
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199:dabe9982fca3 200:03afbee0cc7b
1 /**
2 * Orthanc - A Lightweight, RESTful DICOM Store
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
4 * Department, University Hospital of Liege, Belgium
5 * Copyright (C) 2017-2018 Osimis S.A., Belgium
6 *
7 * This program is free software: you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License as
9 * published by the Free Software Foundation, either version 3 of the
10 * License, or (at your option) any later version.
11 *
12 * In addition, as a special exception, the copyright holders of this
13 * program give permission to link the code of its release with the
14 * OpenSSL project's "OpenSSL" library (or with modified versions of it
15 * that use the same license as the "OpenSSL" library), and distribute
16 * the linked executables. You must obey the GNU General Public License
17 * in all respects for all of the code used other than "OpenSSL". If you
18 * modify file(s) with this exception, you may extend this exception to
19 * your version of the file(s), but you are not obligated to do so. If
20 * you do not wish to do so, delete this exception statement from your
21 * version. If you delete this exception statement from all source files
22 * in the program, then also delete it here.
23 *
24 * This program is distributed in the hope that it will be useful, but
25 * WITHOUT ANY WARRANTY; without even the implied warranty of
26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
27 * General Public License for more details.
28 *
29 * You should have received a copy of the GNU General Public License
30 * along with this program. If not, see <http://www.gnu.org/licenses/>.
31 **/
32
33
34 #pragma once
35
36 #include "DicomMap.h"
37
38 namespace Orthanc
39 {
40 /**
41 * This class implements the hashing mechanism that is used to
42 * convert DICOM unique identifiers to Orthanc identifiers. Any
43 * Orthanc identifier for a DICOM resource corresponds to the SHA-1
44 * hash of the DICOM identifiers.
45
46 * \note SHA-1 hash is used because it is less sensitive to
47 * collision attacks than MD5. <a
48 * href="http://en.wikipedia.org/wiki/SHA-256#Comparison_of_SHA_functions">[Reference]</a>
49 **/
50 class DicomInstanceHasher
51 {
52 private:
53 std::string patientId_;
54 std::string studyUid_;
55 std::string seriesUid_;
56 std::string instanceUid_;
57
58 std::string patientHash_;
59 std::string studyHash_;
60 std::string seriesHash_;
61 std::string instanceHash_;
62
63 void Setup(const std::string& patientId,
64 const std::string& studyUid,
65 const std::string& seriesUid,
66 const std::string& instanceUid);
67
68 public:
69 DicomInstanceHasher(const DicomMap& instance);
70
71 DicomInstanceHasher(const std::string& patientId,
72 const std::string& studyUid,
73 const std::string& seriesUid,
74 const std::string& instanceUid)
75 {
76 Setup(patientId, studyUid, seriesUid, instanceUid);
77 }
78
79 const std::string& GetPatientId() const
80 {
81 return patientId_;
82 }
83
84 const std::string& GetStudyUid() const
85 {
86 return studyUid_;
87 }
88
89 const std::string& GetSeriesUid() const
90 {
91 return seriesUid_;
92 }
93
94 const std::string& GetInstanceUid() const
95 {
96 return instanceUid_;
97 }
98
99 const std::string& HashPatient();
100
101 const std::string& HashStudy();
102
103 const std::string& HashSeries();
104
105 const std::string& HashInstance();
106 };
107 }