On the security of a spatiotemporal chaotic cryptosystem
Rhouma Rhouma, Belghith Safya · Chaos An Interdisciplinary Journal of Nonlinear Science · 2007
Recently, Tang et al. [Phys Lett. A 318, 388 (2003)] proposed a spatiotemporal cryptosystem based on one-way coupled map lattices. They claim that it has high security, fast encryption speed, and short synchronization transient. This work proves that this scheme has some security weaknesses. Indeed, we propose an attack which the system cannot withstand.