Analytical Study of Hybrid Techniques for Image Encryption and Decryption.

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ID: 171667
2020
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Abstract
The majority of imaging techniques use symmetric and asymmetric cryptography algorithms to encrypt digital media. Most of the research works contributed in the literature focus primarily on the Advanced Encryption Standard (AES) algorithm for encryption and decryption. This paper propose an analysis for performing image encryption and decryption by hybridization of Elliptic Curve Cryptography (ECC) with Hill Cipher (HC), ECC with Advanced Encryption Standard (AES) and ElGamal with Double Playfair Cipher (DPC). This analysis is based on the following parameters: (i) Encryption and decryption time, (ii) entropy of encrypted image, (iii) loss in intensity of the decrypted image, (iv) Peak Signal to Noise Ratio (PSNR), (v) Number of Pixels Change Rate (NPCR), and (vi) Unified Average Changing Intensity (UACI). The hybrid process involves the speed and ease of implementation from symmetric algorithms, as well as improved security from asymmetric algorithms. ECC and ElGamal cryptosystems provide asymmetric key cryptography, while HC, AES, and DPC are symmetric key algorithms. ECC with AES are perfect for remote or private communications with smaller image sizes based on the amount of time needed for encryption and decryption. The metric measurement with test cases finds that ECC and HC have a good overall solution for image encryption.
Reference Key
chowdhary2020analyticalsensors Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Chowdhary, Chiranji Lal;Patel, Pushpam Virenbhai;Kathrotia, Krupal Jaysukhbhai;Attique, Muhammad;P, Kumaresan;Ijaz, Muhammad Fazal;
Journal sensors
Year 2020
DOI
E5162
URL
Keywords
number of pixels change rate (npcr) unified average changing intensity (uaci) advanced encryption standard cryptography algorithm double playfair cipher elliptic curve cryptography encryption and decryption hill cipher lossy compression peak signal to noise ratio

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