Title :
A novel image encryption algorithm based on fractional fourier transform and magic cube rotation
Author :
Feng, Xiao ; Tian, Xiaolin ; Xia, Shaowei
Author_Institution :
Fac. of Inf. Technol., Macau Univ. of Sci. & Technol., Macau, China
Abstract :
This paper proposes a novel image encryption algorithm based on the discrete fractional Fourier transform and an improved magic cube rotation scrambling algorithm. Through fractional Fourier transform and position scrambling, the proposed algorithm can achieve double image encryption in the time-frequency domain. Compared the encrypted images and decrypted images, the proposed image encryption algorithm has better performance than only using fractional Fourier transform.
Keywords :
Fourier transforms; cryptography; image coding; time-frequency analysis; discrete fractional Fourier transform; double image encryption algorithm; improved magic cube rotation scrambling algorithm; position scrambling; time-frequency domain; Chaos; Encryption; Fourier transforms; Image restoration; Signal processing algorithms; Chaotic Sequences; Fractional Fourier Transform; Image Encryption; Image Scrambling; Magic Cube Rotation;
Conference_Titel :
Image and Signal Processing (CISP), 2011 4th International Congress on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-9304-3
DOI :
10.1109/CISP.2011.6100319