Fuzzy stream cipher system

In this paper a fuzzy synchronous stream cipher system has been proposed. We have constructed system in the form of a non-linear feedback shift register to obtain a pseudo-random noise very similar to real random bits stream. The suggested system is deterministic so the same parameters of the fuzzy pseudo-random generator will give the same random bits sequence. The designed system is simple and suitable for various telecommunication ciphering applications, we introduced it in a general way. The generated pseudo-random sequence passed successfully through 15 randomness tests.