Chaos based pseudo-random sequences

According to the properties of chaotic system, such as ergodicity, we exploit a method to generate pseudo-random sequences, called as PRNG. There are three modules in the process of the whole generation. In order to strengthen the security of the related cryptosystems, we propose a chaotic hybrid map by the combination of two standard maps. To evaluate the randomness of the bit streams generated by the PRNG, we test: auto-correlation, cross-correlation and Golomb conditions. As a result the distribution of the bit streams generated by the PRNG is uniform. The proposed PRNG can be used in many applications requiring random binary sequences.