College of Engineering

Abstract : Most encryption algorithms are designed without regard to their performance on top-of-the-line microprocessors. The purpose of this thesis is to discuss the software optimization techniques and how they should be applied in the design of encryption algorithms. General software optimization principles are presented that apply to almost all modern CPUs.

Abstract : Since the appearance of computers network until the use of the internet many types of LAN were applied according to the topology or to the way of exchanging the information (access method). To get the better and suitable ways, the need to study the performance of LAN was appeared in order to know the network performance through measuring the time of information receiving, to know which type is suitable for a specific job and place.