Hyperchaotic System-Based PRNG and S-Box Design for a Novel Secure Image Encryption

被引:0
|
作者
Ozpolat, Erman [1 ]
Celik, Vedat [2 ]
Gulten, Arif [2 ]
机构
[1] Mus Alparslan Univ, Fac Engn & Architecture, Dept Elect Elect Engn, TR-49100 Mus, Turkiye
[2] Firat Univ, Fac Engn, Dept Elect Elect Engn, TR-23119 Elazig, Turkiye
关键词
hyperchaotic systems; pseudo-random number generator (PRNG); S-box; image encryption; chaotic cryptography; PSEUDORANDOM NUMBER GENERATOR; CONSTRUCTION;
D O I
10.3390/e27030299
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
A hyperchaotic system was analyzed in this study, and its hyperchaotic behavior was confirmed through dynamic analysis. The system was utilized to develop a pseudo-random number generator (PRNG), whose statistical reliability was validated through NIST SP800-22 tests, demonstrating its suitability for cryptographic applications. Additionally, a 16 x 16 S-box was constructed based on the hyperchaotic system, ensuring high nonlinearity and strong cryptographic performance. A comparative analysis revealed that the proposed S-box structure outperforms existing designs in terms of security and efficiency. A new image encryption algorithm was designed using the PRNG and S-box, and its performance was evaluated on 512 x 512 grayscale images, including the commonly used baboon and pepper images. The decryption process successfully restored the original images, confirming the encryption scheme's reliability. Security evaluations, including histogram analysis, entropy measurement, correlation analysis, and resistance to differential and noise attacks, were conducted. The findings showed that the suggested encryption algorithm outperforms current techniques in terms of security and efficiency. This study contributes to the advancement of robust PRNG generation, secure S-box design, and efficient image encryption algorithms using hyperchaotic systems, offering a promising approach for secure communication and data protection.
引用
收藏
页数:25
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