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Image Encryption using Non-linear FSR and 2D CAT  

Nam, Tae-Hee (동주대학 의료기공학과)
Cho, Sung-Jin (부경대학교 전자컴퓨터정보통신공학부)
Kim, Seok-Tae (부경대학교 수리과학부)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.34, no.7C, 2009 , pp. 663-670 More about this Journal
Abstract
In this paper, we propose the image encryption method which gradually uses NFSR(Non-linear Feedback Shift Register) and 20 CAT(Two-Dimensional Cellular Automata Transform). The encryption method is processed in the following order. First, NFSR is used to create a PN(pseudo noise) sequence, which matches the size of the original image. Then, the created sequence goes through a XOR operation with the original image and process the encipherment. Next, the gateway value is set to produce a 20 CAT basis function. The produced basis function is multiplied by encryption image that has been converted to process the 20 CAT encipherment. Lastly, the results of the experiment which are key space analysis, entropy analysis, and sensitivity analysis verify that the proposed method is efficient and very secure.
Keywords
NFSR; CAT; PN(pseudo noise) sequences; Image Encryption;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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