Mercurial > hg > orthanc

comparison Core/DicomFormat/DicomInstanceHasher.h @ 178:5739b4d10a4b

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
hashing
author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 09 Nov 2012 11:13:29 +0100
parents
children 78e28d0098d9
comparison
equal deleted inserted replaced
177:81b6f3013738 178:5739b4d10a4b
1 /**
2 * Orthanc - A Lightweight, RESTful DICOM Store
3 * Copyright (C) 2012 Medical Physics Department, CHU of Liege,
4 * Belgium
5 *
6 * This program is free software: you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation, either version 3 of the
9 * License, or (at your option) any later version.
10 *
11 * In addition, as a special exception, the copyright holders of this
12 * program give permission to link the code of its release with the
13 * OpenSSL project's "OpenSSL" library (or with modified versions of it
14 * that use the same license as the "OpenSSL" library), and distribute
15 * the linked executables. You must obey the GNU General Public License
16 * in all respects for all of the code used other than "OpenSSL". If you
17 * modify file(s) with this exception, you may extend this exception to
18 * your version of the file(s), but you are not obligated to do so. If
19 * you do not wish to do so, delete this exception statement from your
20 * version. If you delete this exception statement from all source files
21 * in the program, then also delete it here.
22 *
23 * This program is distributed in the hope that it will be useful, but
24 * WITHOUT ANY WARRANTY; without even the implied warranty of
25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
26 * General Public License for more details.
27 *
28 * You should have received a copy of the GNU General Public License
29 * along with this program. If not, see <http://www.gnu.org/licenses/>.
30 **/
31
32
33 #pragma once
34
35 #include "DicomMap.h"
36
37 namespace Orthanc
38 {
39 /**
40 * This class implements the hashing mechanism that is used to
41 * convert DICOM unique identifiers to Orthanc identifiers. Any
42 * Orthanc identifier for a DICOM resource corresponds to the SHA-1
43 * hash of the DICOM identifiers.
44
45 * \note SHA-1 hash is used because it is less sensitive to
46 * collision attacks than MD5. <a
47 * href="http://en.wikipedia.org/wiki/SHA-256#Comparison_of_SHA_functions">[Reference]</a>
48 **/
49 class DicomInstanceHasher
50 {
51 private:
52 std::string patientId_;
53 std::string instanceUid_;
54 std::string seriesUid_;
55 std::string studyUid_;
56
57 public:
58 DicomInstanceHasher(const DicomMap& instance);
59
60 const std::string& GetPatientId() const
61 {
62 return patientId_;
63 }
64
65 const std::string& GetInstanceUid() const
66 {
67 return instanceUid_;
68 }
69
70 const std::string& GetSeriesUid() const
71 {
72 return seriesUid_;
73 }
74
75 const std::string& GetStudyUid() const
76 {
77 return studyUid_;
78 }
79
80 std::string HashPatient() const;
81
82 std::string HashStudy() const;
83
84 std::string HashSeries() const;
85
86 std::string HashInstance() const;
87 };
88 }