Proposal of New Keys Generator for DES Algorithms Depending on Multi Techniques

Abstract

The requirements of an ordinary PRNG are also satisfied by a cryptographically secure PRNG, but the reverse is not true.CSPRNG requirements fall into two groups: first, that they pass statistical randomness tests; and secondly, that they hold up well under serious attack, even when part of their initial or running state becomes available to an attacker.in this paper, design and implementation new keys generator depend on multi of techniques as (logic circuit XOR, NOT and AND) in one proposal also in another proposal used the coding, permutations and reorder bit by search method in artificial intelligent also depend of polynomial equations to expand the original key, the generator product random runs of bits after check by statistical test.