On the security of a spatiotemporal chaotic cryptosystem.
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.
Rhouma
Rhouma
R
Syscom Laboratory, Ecole Nationale d'Ingénieurs de Tunis, 37, Le Belvédère 1002 Tunis, Tunisia. rhoouma@yahoo.fr
Safya
Belghith
B