Title :
A Stream Cipher Based on Discretized Spatiotemporal Chaotic System
Author :
Yin, Ruming ; Yuan, Jian ; Yang, Qiuhua ; Shan, Xiuming ; Wang, Xiqin
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
Abstract :
The floating-point operation makes the spatiotemporal chaos based cryptosystems difficult to be analyzed. In this paper, according to the design principles of confusion and diffusion, the coupled map lattice (CML) is discretized and a new stream cipher with the discretized CML is proposed. We show the proposed cipher can be clearly analyzed by using proper cryptographic techniques.
Keywords :
chaos; cryptography; coupled map lattice; cryptographic techniques; discretized spatiotemporal chaotic system; floating-point operation; spatiotemporal chaos based cryptosystems; stream cipher; Chaos; Couplings; Cryptography; Design methodology; Information science; Lattices; Logistics; Rabbits; Security; Spatiotemporal phenomena;
Conference_Titel :
Information Science and Engineering (ICISE), 2009 1st International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-4909-5
DOI :
10.1109/ICISE.2009.170
