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An Efficient Homomorphic Medical Image Encryption
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- 3.2 Encryption, Decryption and Key generation
3. Proposed Framework
By understanding the advantages of homomorphic encryption in providing an efficient security to original data, we propose an algorithm to perform encryption and decryption on medical images. The proposed algorithm satisfies the homomorphic property. It supports both additive and multiplicative homomorphism. The Figure 1 shows the proposed framework. Fig. 1. Homomorphic Encryption Framework A The patient data like records, scan and X-ray images are taken. B These images are stored in the standard format called the DICOM. C Inorder to perform encryption process on this data the image is converted into matrix. D These matrix elements are sent one by one to the proposed formula. E Key generation process takes place. F Based on the homomorphic property the public and private keys are generated. G Then these parameters are passed to perform the encryption. H The encrypted matrix is converted to image. I Then the encrypted image can be stored in the cloud. J Then the image is converted to matrix. K Then the matrix is passed one by one to the decryption formula. L The decrypted matrix is converted to image. M The original image is obtained N These encrypted images can be used by the researchers. O They can also be used by the pharmacist. 646 A.M. Vengadapurvaja et al. / Procedia Computer Science 115 (2017) 643–650 4 A.M.Vengadapurvaja,G.Nisha,R.Aarthy,N.Sasikaladevi/ Procedia Computer Science 00 (2017) 000–000 3.2 Encryption, Decryption and Key generation The Probabilistic key generation algorithm is used to generate key in the proposed model [6]. Table 1: Key parameters Parameter Type Constraints p Big prime Public q Big prime p>>q a Download 0.73 Mb. Do'stlaringiz bilan baham: |
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