A Chaotic Image Encryption Method Based on the Artificial Fish Swarms Algorithm and the DNA Coding
Aiming at the problems of small key space and weak resistance to differential attacks in existing encryption algorithms, we proposed a chaotic digital image encryption scheme based on an optimized artificial fish swarm algorithm and DNA coding. First, the key is associated with the ordinary image pi...
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| Format: | Article |
| Jezik: | English |
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MDPI AG
2023-02-01
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| Serija: | Mathematics |
| Teme: | |
| Online dostop: | https://www.mdpi.com/2227-7390/11/3/767 |
| _version_ | 1827759943839645696 |
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| author | Yue Zhu Chunhua Wang Jingru Sun Fei Yu |
| author_facet | Yue Zhu Chunhua Wang Jingru Sun Fei Yu |
| author_sort | Yue Zhu |
| collection | DOAJ |
| description | Aiming at the problems of small key space and weak resistance to differential attacks in existing encryption algorithms, we proposed a chaotic digital image encryption scheme based on an optimized artificial fish swarm algorithm and DNA coding. First, the key is associated with the ordinary image pixel through the MD5 hash operation, and the hash value generated by the ordinary image is used as the initial value of the hyper-chaotic system to increase the sensitivity of the key. Next, the artificial fish school algorithm is used to scramble the positions of pixels in the block. In addition, scrambling operation between blocks is proposed to increase the scrambling effect. In the diffusion stage, operations are performed based on DNA encoding, obfuscation, and decoding technologies to obtain encrypted images. The research results show that the optimized artificial fish swarm algorithm has good convergence and can obtain the global optimal solution to the greatest extent. In addition, simulation experiments and security analysis show that compared with other encryption schemes, the scheme proposed in this paper has a larger key space and better resistance to differential attacks, indicating that the proposed algorithm has better encryption performance and higher security. |
| first_indexed | 2024-03-11T09:34:43Z |
| format | Article |
| id | doaj.art-c3d627dcc0d549d59c452b129dce323e |
| institution | Directory Open Access Journal |
| issn | 2227-7390 |
| language | English |
| last_indexed | 2024-03-11T09:34:43Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Mathematics |
| spelling | doaj.art-c3d627dcc0d549d59c452b129dce323e2023-11-16T17:24:17ZengMDPI AGMathematics2227-73902023-02-0111376710.3390/math11030767A Chaotic Image Encryption Method Based on the Artificial Fish Swarms Algorithm and the DNA CodingYue Zhu0Chunhua Wang1Jingru Sun2Fei Yu3College of Computer Science and Electronic Engineering, Hunan University, Changsha 410082, ChinaCollege of Computer Science and Electronic Engineering, Hunan University, Changsha 410082, ChinaCollege of Computer Science and Electronic Engineering, Hunan University, Changsha 410082, ChinaSchool of Computer and Communication Engineering, Changsha University of Science and Technology, Changsha 410114, ChinaAiming at the problems of small key space and weak resistance to differential attacks in existing encryption algorithms, we proposed a chaotic digital image encryption scheme based on an optimized artificial fish swarm algorithm and DNA coding. First, the key is associated with the ordinary image pixel through the MD5 hash operation, and the hash value generated by the ordinary image is used as the initial value of the hyper-chaotic system to increase the sensitivity of the key. Next, the artificial fish school algorithm is used to scramble the positions of pixels in the block. In addition, scrambling operation between blocks is proposed to increase the scrambling effect. In the diffusion stage, operations are performed based on DNA encoding, obfuscation, and decoding technologies to obtain encrypted images. The research results show that the optimized artificial fish swarm algorithm has good convergence and can obtain the global optimal solution to the greatest extent. In addition, simulation experiments and security analysis show that compared with other encryption schemes, the scheme proposed in this paper has a larger key space and better resistance to differential attacks, indicating that the proposed algorithm has better encryption performance and higher security.https://www.mdpi.com/2227-7390/11/3/767artificial fish swarm algorithmhyper-chaotic systemimage encryptionDNA |
| spellingShingle | Yue Zhu Chunhua Wang Jingru Sun Fei Yu A Chaotic Image Encryption Method Based on the Artificial Fish Swarms Algorithm and the DNA Coding Mathematics artificial fish swarm algorithm hyper-chaotic system image encryption DNA |
| title | A Chaotic Image Encryption Method Based on the Artificial Fish Swarms Algorithm and the DNA Coding |
| title_full | A Chaotic Image Encryption Method Based on the Artificial Fish Swarms Algorithm and the DNA Coding |
| title_fullStr | A Chaotic Image Encryption Method Based on the Artificial Fish Swarms Algorithm and the DNA Coding |
| title_full_unstemmed | A Chaotic Image Encryption Method Based on the Artificial Fish Swarms Algorithm and the DNA Coding |
| title_short | A Chaotic Image Encryption Method Based on the Artificial Fish Swarms Algorithm and the DNA Coding |
| title_sort | chaotic image encryption method based on the artificial fish swarms algorithm and the dna coding |
| topic | artificial fish swarm algorithm hyper-chaotic system image encryption DNA |
| url | https://www.mdpi.com/2227-7390/11/3/767 |
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