篇名 |
An Application of Keystream Using Cellular Automata for Image Encryption in IoT
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並列篇名 | An Application of Keystream Using Cellular Automata for Image Encryption in IoT |
作者 | Shyi-Tsong Wu |
英文摘要 | Recently, there have been some studies on security applications using cellular automata. A cellular automaton (CA) is characterized by simplicity and high-speed computation, making it suitable for the resource-constrained IoT environment. In this paper, we first merge a sliding-window, bit permutation, and a CA and propose a keystream generator that has the inherent CA advantages of simplicity and speed. The sliding-window provides the unpredictability of the keystream and gains strength in terms of security. The produced keystream has passed the tests of NIST SP800-22. On the basis of the proposed sliding-window CA keystream generator, an image encryption system is further proposed. We use the keystream generated to scramble and confuse the original image. The histogram of the encrypted image is more average. It can resist differential attacks, and in the differential attack analysis, the NPCR and UACI values are at least 99% and 33%, respectively.
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起訖頁 | 149-162 |
關鍵詞 | Cellular automata、Internet of Things、sliding-window、Image encryption、Keystream generator |
刊名 | 網際網路技術學刊 |
期數 | 202301 (24:1期) |
出版單位 | 台灣學術網路管理委員會 |
DOI |
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