000047430 001__ 47430
000047430 005__ 20170327111855.0
000047430 0247_ $$2doi$$a10.1016/j.jbi.2015.05.002
000047430 0248_ $$2sideral$$a91646
000047430 037__ $$aART-2015-91646
000047430 041__ $$aeng
000047430 100__ $$0(orcid)0000-0001-9680-5855$$aRubio, O.J.
000047430 245__ $$aIntroducing keytagging, a novel technique for the protection of medical image-based tests
000047430 260__ $$c2015
000047430 5060_ $$aAccess copy available to the general public$$fUnrestricted
000047430 5203_ $$aThis paper introduces keytagging, a novel technique to protect medical image-based tests by implementing image authentication, integrity control and location of tampered areas, private captioning with role-based access control, traceability and copyright protection. It relies on the association of tags (binary data strings) to stable, semistable or volatile features of the image, whose access keys (called keytags) depend on both the image and the tag content. Unlike watermarking, this technique can associate information to the most stable features of the image without distortion. Thus, this method preserves the clinical content of the image without the need for assessment, prevents eavesdropping and collusion attacks, and obtains a substantial capacity-robustness tradeoff with simple operations. The evaluation of this technique, involving images of different sizes from various acquisition modalities and image modifications that are typical in the medical context, demonstrates that all the aforementioned security measures can be implemented simultaneously and that the algorithm presents good scalability. In addition to this, keytags can be protected with standard Cryptographic Message Syntax and the keytagging process can be easily combined with JPEG2000 compression since both share the same wavelet transform. This reduces the delays for associating keytags and retrieving the corresponding tags to implement the aforementioned measures to only ¿30 and ¿90. ms respectively. As a result, keytags can be seamlessly integrated within DICOM, reducing delays and bandwidth when the image test is updated and shared in secure architectures where different users cooperate, e.g. physicians who interpret the test, clinicians caring for the patient and researchers.
000047430 536__ $$9info:eu-repo/grantAgreement/ES/MICYT/TIN2011-23792-TSI
000047430 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000047430 590__ $$a2.447$$b2015
000047430 591__ $$aCOMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS$$b20 / 104 = 0.192$$c2015$$dQ1$$eT1
000047430 591__ $$aMEDICAL INFORMATICS$$b5 / 20 = 0.25$$c2015$$dQ1$$eT1
000047430 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000047430 700__ $$0(orcid)0000-0002-5254-1402$$aAlesanco, A.$$uUniversidad de Zaragoza
000047430 700__ $$0(orcid)0000-0001-9485-7678$$aGarcía, J.$$uUniversidad de Zaragoza
000047430 7102_ $$15008$$2560$$aUniversidad de Zaragoza$$bDepartamento de Ingeniería Electrónica y Comunicaciones$$cIngenieria Telematica
000047430 773__ $$g56 (2015), 8-29$$pJ. Biomed. Inform$$tJOURNAL OF BIOMEDICAL INFORMATICS$$x1532-0464
000047430 8564_ $$s8665595$$uhttps://zaguan.unizar.es/record/47430/files/texto_completo.pdf$$yPostprint
000047430 8564_ $$s70002$$uhttps://zaguan.unizar.es/record/47430/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint
000047430 909CO $$ooai:zaguan.unizar.es:47430$$particulos$$pdriver
000047430 951__ $$a2016-06-27-10:23:04
000047430 980__ $$aARTICLE