Analytical Study of Hybrid Techniques for Image Encryption and Decryption

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...

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Vydané v:Sensors (Basel, Switzerland) Ročník 20; číslo 18; s. 5162
Hlavní autori: Chowdhary, Chiranji Lal, Patel, Pushpam Virenbhai, Kathrotia, Krupal Jaysukhbhai, Attique, Muhammad, Perumal, Kumaresan, Ijaz, Muhammad Fazal
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: Switzerland MDPI 10.09.2020
MDPI AG
Predmet:
advanced encryption standard
cryptography algorithm
double playfair cipher
elliptic curve cryptography
encryption and decryption
hill cipher
encryption and decryption
Number of Pixels Change Rate (NPCR)
double playfair cipher
hill cipher
advanced encryption standard
lossy compression
peak signal to noise ratio
Unified Average Changing Intensity (UACI)
cryptography algorithm
elliptic curve cryptography
ISSN:1424-8220, 1424-8220
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Shrnutí: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.
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ISSN:1424-8220
1424-8220
DOI:10.3390/s20185162