Recommendations to increase this performance are given. Performance evaluation of programmable logic devices in the generation of pseudo-random sequence by nonlinear feedback shift registers is given. These registers form a maximal length sequence, using programmable logic devices.
Feasibility of nonlinear feedback shift register search is analyzed. The nonlinear feedback shift registers of the second order inare considered, because based on them it can be developed a generator of stream ciphers with enhanced cryptographic strength.