Title :
A new chaotic key-based design for image encryption and decryption
Author :
Jui-Cheng ; Guo, Jim-In
Author_Institution :
Dept. of Electron. Eng., Nat. Lien-Ho Inst. of Technol., Taiwan, China
Abstract :
In this paper, an image encryption/decryption algorithm and its VLSI architecture are proposed. According to a chaotic binary sequence, the gray level of each pixel is XORed or XNORed bit-by-bit to one of the two predetermined keys. Its features are as follows: (1) low computational complexity, (2) high security, and (3) no distortion. In order to implement the algorithm, its VLSI architecture with low hardware cost, high computing speed, and high hardware utilization efficiency is also designed. Moreover, the architecture of integrating the scheme with MPEG2 is proposed. Finally, simulation results are included to demonstrate its effectiveness
Keywords :
VLSI; binary sequences; chaos; computational complexity; cryptography; image coding; MPEG2; VLSI architecture; chaotic binary sequence; chaotic key-based design; computational complexity; computing speed; gray level; hardware cost; hardware utilization efficiency; image decryption; image encryption; security; Algorithm design and analysis; Binary sequences; Chaos; Computational complexity; Computer architecture; Costs; Cryptography; Hardware; Security; Very large scale integration;
Conference_Titel :
Circuits and Systems, 2000. Proceedings. ISCAS 2000 Geneva. The 2000 IEEE International Symposium on
Conference_Location :
Geneva
Print_ISBN :
0-7803-5482-6
DOI :
10.1109/ISCAS.2000.858685
