TITLE:
Image Encryption and Decryption Based on Chaotic Algorithm
AUTHORS:
Yue Hu, Ruyue Tian
KEYWORDS:
Chaos Algorithm, Image Encryption and Decryption, Two-Stage Logistic Mapping, M Sequence
JOURNAL NAME:
Journal of Applied Mathematics and Physics,
Vol.8 No.9,
September
15,
2020
ABSTRACT: This paper analyzes the problems in image encryption and decryption based on chaos theory. This article introduces the application of the two-stage Logistic algorithm in image encryption and decryption, then by information entropy analysis it is concluded that the security of this algorithm is higher compared with the original image; And a new image encryption and decryption algorithm based on the combination of two-stage Logistic mapping and M sequence is proposed. This new algorithm is very sensitive to keys; the key space is large and its security is higher than two-stage Logistic mapping of image encryption and decryption technology.