• KSII Transactions on Internet and Information Systems
    Monthly Online Journal (eISSN: 1976-7277)

The fast image encryption algorithm based on substitution and diffusion

Vol. 12, No.9, September 30, 2018
10.3837/tiis.2018.09.020, Download Paper (Free):

Abstract

A fast image encryption system based on substitution and diffusion was proposed, which includes one covering process, one substitution process and two diffusion processes. At first, Chen's chaotic system together with an external 256-bit long secret key was used to generate the key streams for image encryption, in which the initial values of Chen's chaotic system were regarded as the public key. Then the plain image was masked by the covering process. After that the resulting image was substituted with the disturbed S-Box of AES. Finally, the substituted image was diffused twice with the add-modulo operations as the core to obtain the cipher image. Simulation analysis and comparison results with AES and some existing image cryptosystems show that the proposed image cryptosystem possesses the merits of fast encryption/decryption speed, good statistical characteristics, strong sensitivity and etc., and can be used as a candidate system of network security communication.


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Cite this article

[IEEE Style]
Yong Zhang and Xiaoyang Jia, "The fast image encryption algorithm based on substitution and diffusion," KSII Transactions on Internet and Information Systems, vol. 12, no. 9, pp. 4487-4511, 2018. DOI: 10.3837/tiis.2018.09.020

[ACM Style]
Zhang, Y. and Jia, X. 2018. The fast image encryption algorithm based on substitution and diffusion. KSII Transactions on Internet and Information Systems, 12, 9, (2018), 4487-4511. DOI: 10.3837/tiis.2018.09.020