Tri-level scrambling and enhanced diffusion for DICOM image cipher- DNA and chaotic fused approach
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Tri-level scrambling and enhanced diffusion for DICOM image cipher- DNA and chaotic fused approach S Aashiq Banu 1 & Rengarajan Amirtharajan 1 Received: 7 December 2019 / Revised: 17 June 2020 / Accepted: 29 July 2020 # Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract
Tele-health and e-healthcare are some of the innovative e-commerce appliances that can eliminate the barrier between time and distance among health care centres and patients. The proposed work approaches the obstacle to secure digital medical image data in a public cloud. The most crucial part of e-healthcare and telemedicine industries is cyber-attacks. To thwart cyber-attacks, it is necessary to protect the medical images and transmit them securely. In this paper, a novel way of scrambling and Deoxyribonucleic Acid (DNA) sequence operations is performed to encrypt the digital medical images. A chaotic tri-level scrambling is carried out by a two dimensional Tinkerbell map. Experimental outcomes and security analyses such as statistical, differential, keyspace, encryption quality, along with chosen-plaintext attack analysis have been perpetrated to determine the feasibility and potency of the proposed Digital Imaging and Communications in Medicine (DICOM) image encryption method. The algorithm attains average entropy of 7.99 and near-zero correlation with NPCR and UACI of 99.6 and 33.4, respectively. Further, the efficiency of the algorithm is compared with the state of the literature encryption techniques. Keywords Image encryption . Permutation . DNA diffusion . Tinkerbell map . DICOM
1 Introduction With the improvement of technologies like telecommunications and telemedicine, transmitting of patient’s medical data from the diagnosis centre to any corner of the world has been increased. Cloud computing has bestowed a remarkable growth in recent eras by connecting the e-healthcare sectors. It provides a service for the storage of important data and many applications on the implicit servers. Cloud services such as availability, scalability, privacy,
* Rengarajan Amirtharajan [email protected]
1
School of Electrical & Electronics Engineering, SASTRA Deemed University, Thanjavur 613 401, India
Multimedia Tools and Applications
and security are the foremost parameters and challenging issues. The online services on ecommerce sectors like e-healthcare and social websites have enhanced by its essential services, which magnify the cloud platforms [7]. Meanwhile, in health-care sectors, data like medical images cover the patient’s highly confidential information which is sufficient for hackers to attacks. In this scenario, for safe transmission of medical data, it is crucial to defend it from cyber-attacks. The most prominent standard in medical images is DICOM which involves safe storage, retrieval, processing and transmission. A secured network should be established to transmit patient information among health-care centres. To overcome privacy issues and to guarantee the transmission is reliable, one of the best techni
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