Chaos-Based Synchronized Dynamic Keys and Their Application to Image Encryption with an Improved AES Algorithm
This study aimed to design chaos-based synchronized dynamic keys and develop an improved chaos-based advanced encryption standard (AES) algorithm with the proposed synchronized random keys. First, based on sliding mode control (SMC) technology, a rippling control scheme was introduced to guarantee t...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-02-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/11/3/1329 |
| _version_ | 1797416588548243456 |
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| author | Chih-Hsueh Lin Guo-Hsin Hu Che-Yu Chan Jun-Juh Yan |
| author_facet | Chih-Hsueh Lin Guo-Hsin Hu Che-Yu Chan Jun-Juh Yan |
| author_sort | Chih-Hsueh Lin |
| collection | DOAJ |
| description | This study aimed to design chaos-based synchronized dynamic keys and develop an improved chaos-based advanced encryption standard (AES) algorithm with the proposed synchronized random keys. First, based on sliding mode control (SMC) technology, a rippling control scheme was introduced to guarantee the synchronization between master–slave discrete chaotic systems. Under the synchronization, the same dynamic random chaos signals could be simultaneously obtained at the transmitter and receiver in communication systems. Then, a novel modified AES cryptosystem with dynamic random keys based on chaos synchronization was presented. In a traditional AES cryptosystem, a static key is used, and it must be exchanged in advance and confirmed to be safely kept. However, in the proposed design, by introducing the synchronization technology of chaotic systems, the static key becomes dynamic and random, and it does not need to be kept or transmitted in open channels. Consequently, the disadvantage of key storage could be eliminated and the security of encryption could be improved. Finally, the developed chaos-based AES (CAES) algorithm has been applied to construct a novel image encryption algorithm. The statistical analysis, histogram, information entropy, and correlation indexes have been calculated and analyzed through simulation experiments in order to demonstrate the capability and improvement of this presented CAES cryptosystem. |
| first_indexed | 2024-03-09T06:06:20Z |
| format | Article |
| id | doaj.art-6e107226849145899f7db32b2a4cf4b1 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T06:06:20Z |
| publishDate | 2021-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-6e107226849145899f7db32b2a4cf4b12023-12-03T12:03:08ZengMDPI AGApplied Sciences2076-34172021-02-01113132910.3390/app11031329Chaos-Based Synchronized Dynamic Keys and Their Application to Image Encryption with an Improved AES AlgorithmChih-Hsueh Lin0Guo-Hsin Hu1Che-Yu Chan2Jun-Juh Yan3Department of Electronic Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 80778, TaiwanDepartment of Electronic Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 80778, TaiwanDepartment of Electronic Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 80778, TaiwanDepartment of Electronic Engineering, National Chin-Yi University of Technology, Taichung 41107, TaiwanThis study aimed to design chaos-based synchronized dynamic keys and develop an improved chaos-based advanced encryption standard (AES) algorithm with the proposed synchronized random keys. First, based on sliding mode control (SMC) technology, a rippling control scheme was introduced to guarantee the synchronization between master–slave discrete chaotic systems. Under the synchronization, the same dynamic random chaos signals could be simultaneously obtained at the transmitter and receiver in communication systems. Then, a novel modified AES cryptosystem with dynamic random keys based on chaos synchronization was presented. In a traditional AES cryptosystem, a static key is used, and it must be exchanged in advance and confirmed to be safely kept. However, in the proposed design, by introducing the synchronization technology of chaotic systems, the static key becomes dynamic and random, and it does not need to be kept or transmitted in open channels. Consequently, the disadvantage of key storage could be eliminated and the security of encryption could be improved. Finally, the developed chaos-based AES (CAES) algorithm has been applied to construct a novel image encryption algorithm. The statistical analysis, histogram, information entropy, and correlation indexes have been calculated and analyzed through simulation experiments in order to demonstrate the capability and improvement of this presented CAES cryptosystem.https://www.mdpi.com/2076-3417/11/3/1329advanced encryption standardrippling sliding mode controlsynchronizationdynamic random keyimage encryption |
| spellingShingle | Chih-Hsueh Lin Guo-Hsin Hu Che-Yu Chan Jun-Juh Yan Chaos-Based Synchronized Dynamic Keys and Their Application to Image Encryption with an Improved AES Algorithm Applied Sciences advanced encryption standard rippling sliding mode control synchronization dynamic random key image encryption |
| title | Chaos-Based Synchronized Dynamic Keys and Their Application to Image Encryption with an Improved AES Algorithm |
| title_full | Chaos-Based Synchronized Dynamic Keys and Their Application to Image Encryption with an Improved AES Algorithm |
| title_fullStr | Chaos-Based Synchronized Dynamic Keys and Their Application to Image Encryption with an Improved AES Algorithm |
| title_full_unstemmed | Chaos-Based Synchronized Dynamic Keys and Their Application to Image Encryption with an Improved AES Algorithm |
| title_short | Chaos-Based Synchronized Dynamic Keys and Their Application to Image Encryption with an Improved AES Algorithm |
| title_sort | chaos based synchronized dynamic keys and their application to image encryption with an improved aes algorithm |
| topic | advanced encryption standard rippling sliding mode control synchronization dynamic random key image encryption |
| url | https://www.mdpi.com/2076-3417/11/3/1329 |
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