In this paper, after a short survey describing several known constructions recommended for generating sequences of pseudo-random numbers based on elliptic curves over finite fields of prime order, we propose a method of generating such sequences of points with algorithms driven by a chaotic map. Our construction improves randomness of the sequence generated since it combines good statistical properties of ... Read more

Pseudo-random number generators (PRNG) play main important role in many security and cryptographic applications which require the output to be unpre- dictable and this is directly related to the quality of the generated random sequences. The design of such random sequences generators is not an easy task. Elliptic Curve Cryptography (ECC) is a relatively recent branch of cryptography which is ... Read more

Cryptography and data security are among the most important scientific discoveries of the last century. Although these two areas initially developed separately, it has emerged that they are in fact intimately related.This paper intends to give a history introduction to both of steganography and cryptography which form the basis of the science of cryptology. It does not attempt to convey ... Read more