Abstract | ||
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In order to improve the security and efficiency of image encryption systems comprehensively, a novel chaotic S-box based image encryption scheme is proposed. Firstly, a new compound chaotic system, Sine-Tent map, is proposed to widen the chaotic range and improve the chaotic performance of 1D discrete chaotic maps. As a result, the new compound chaotic system is more suitable for cryptosystem. Secondly, an efficient and simple method for generating S-boxes is proposed, which can greatly improve the efficiency of S-box production. Thirdly, a novel double S-box based image encryption algorithm is proposed. By introducing equivalent key sequences {r, t} related with image ciphertext, the proposed cryptosystem can resist the four classical types of attacks, which is an advantage over other S-box based encryption schemes. Furthermore, it enhanced the resistance of the system to differential analysis attack by two rounds of forward and backward confusion-diffusion operation with double S-boxes. The simulation results and security analysis verify the effectiveness of the proposed scheme. The new scheme has obvious efficiency advantages, which means that it has better application potential in real-time image encryption. |
Year | DOI | Venue |
---|---|---|
2019 | 10.3390/e21080790 | ENTROPY |
Keywords | Field | DocType |
image encryption,compound chaotic system,S-box,image information entropy | S-box,Mathematical optimization,Algorithm,Cryptosystem,Encryption,Security analysis,Differential analysis,Ciphertext,Chaotic,Mathematics | Journal |
Volume | Issue | ISSN |
21 | 8 | 1099-4300 |
Citations | PageRank | References |
5 | 0.44 | 0 |
Authors | ||
3 |
Name | Order | Citations | PageRank |
---|---|---|---|
Shenli Zhu | 1 | 5 | 0.44 |
Guojun Wang | 2 | 1740 | 144.41 |
Congxu Zhu | 3 | 70 | 11.84 |