Android SMS encryption system based on chaos

A new discrete switch-chaos system is proposed for generating chaotic PN sequences. Performance analysis with respect to Logistic map, Tent map and the new switch-chaos system are discussed, including the onto mapping range of the chaos system, the uniformity and pseudo-random of the sequences. An android SMS encryption system based on switch-chaos system is also designed. Experimental results show good performance and high utility value of the SMS encryption system.