Title :
An Improved Image Encryption Algorithm Based on Chaotic Logistic Map
Author :
Wang Feng-ying ; Hu Xiao-Li ; Cui Guo-wei
Author_Institution :
Sch. of Inf. Eng., Inner Mongolia Univ. of Sci. & Technol., Baotou, China
Abstract :
An improved image encryption algorithm based on chaotic logistic map is designed. First, after two initial values of Logistic chaotic map are pretreated, two of the modified initial values are obtained, according to which two chaotic sequences are generated. Next, two chaotic sequences are operated by cos-1 function. Last, image is encrypted combining the method of the gray value substituting. Results and analysis of simulation show that the proposed scheme has higher security.
Keywords :
chaos; cryptography; image processing; chaotic logistic map; chaotic sequences; cos-1 function; gray value substituting method; image encryption algorithm; Algorithm design and analysis; Chaotic communication; Encryption; Equations; Logistics; Image encryption; Logistic map; cos-1-function;
Conference_Titel :
Computational Intelligence and Design (ISCID), 2012 Fifth International Symposium on
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4673-2646-9
DOI :
10.1109/ISCID.2012.178
