84 lines
2.6 KiB
C++
84 lines
2.6 KiB
C++
/**
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* Orthanc - A Lightweight, RESTful DICOM Store
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* Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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* Department, University Hospital of Liege, Belgium
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* Copyright (C) 2017-2023 Osimis S.A., Belgium
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* Copyright (C) 2024-2025 Orthanc Team SRL, Belgium
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* Copyright (C) 2021-2025 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
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*
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* This program is free software: you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this program. If not, see
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* <http://www.gnu.org/licenses/>.
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**/
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#pragma once
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#include "DicomMap.h"
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namespace Orthanc
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{
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/**
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* This class implements the hashing mechanism that is used to
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* convert DICOM unique identifiers to Orthanc identifiers. Any
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* Orthanc identifier for a DICOM resource corresponds to the SHA-1
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* hash of the DICOM identifiers.
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* \note SHA-1 hash is used because it is less sensitive to
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* collision attacks than MD5. <a
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* href="http://en.wikipedia.org/wiki/SHA-256#Comparison_of_SHA_functions">[Reference]</a>
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**/
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class ORTHANC_PUBLIC DicomInstanceHasher
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{
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private:
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std::string patientId_;
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std::string studyUid_;
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std::string seriesUid_;
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std::string instanceUid_;
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mutable std::string patientHash_;
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mutable std::string studyHash_;
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mutable std::string seriesHash_;
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mutable std::string instanceHash_;
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void Setup(const std::string& patientId,
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const std::string& studyUid,
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const std::string& seriesUid,
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const std::string& instanceUid);
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public:
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explicit DicomInstanceHasher(const DicomMap& instance);
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DicomInstanceHasher(const std::string& patientId,
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const std::string& studyUid,
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const std::string& seriesUid,
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const std::string& instanceUid);
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const std::string& GetPatientId() const;
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const std::string& GetStudyUid() const;
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const std::string& GetSeriesUid() const;
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const std::string& GetInstanceUid() const;
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const std::string& HashPatient() const;
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const std::string& HashStudy() const;
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const std::string& HashSeries() const;
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const std::string& HashInstance() const;
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};
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}
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