A Secure Sharing and Retrieval of Image in an Untrusted Cloud Environment
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2016, Vol 4, Issue 4
Abstract
Sharing of Medical reports and scan images of patients are helpful to take quick and perfect decisions among doctors for collaborative treatment. This will help to provide maximum care for the patients who are in long distance where the specialist doctors are not available to give treatment at the correct time. Therefore, Medical images are transmitted in the format of Digital Imaging and Communications in Medicine (DICOM) images which provides a secured communication for effective referrals among peers without affecting the privacy of patients. To provide this security for sharing of medical images, we are combining three cryptic schemes namely Latin Square Image Cipher (LSIC), Arnold Transform and Rubik’s encryption as three different layers. Each encryption techniques have a unique characteristics and properties. In that, LSIC provides shuffling of the image blocks, better substitution and confusion; Arnold Transform provides randomness, erotic and sensibility and also tamper proofing; Rubik Cube basically has the property of permutation of image pixels. These algorithms are developed, implemented and tested in the MATLAB software environment. The testing can be done with various estimated metrics such as Additive White Gaussian Noise (AWGN), Unified Average Changing Intensity (UACI), Number of Pixels Change Rate (NPCR), correlation values and histograms.
Authors and Affiliations
D. Brinda Devi, Dr. S. Selva Kumar
Keywords
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