دراسة تحليلية و مقارنة لاشهر خوارزميات التعمية المتناظرة

Computers and information systems involve all areas of contemporary life. Therefore, information security has become a fundamental requirement for building any network application or automation system (banking, e-commerce, and administrative systems, ERP, etc.). The asymmetric algorithms are the core of any protection system. So the selection of a good asymmetric algorithm, with high security and performance, is a difficult, but important task. This search focuses on the best known algorithms to provide an analytical and comparative study of the most important asymmetric encryption algorithms, implemented in some protocols and organizations (e.g. Rijndael-AES, Mars, IDEA, and Blowfish). The comparisons include the most important aspects of new theoretical and practical applications of the algorithms listed in order to draw the appropriate standards for use in different settings to prevent the exploitation of the security gaps. We provide a short review of each algorithm, types of attacks on symmetric algorithms, security evaluation, performance and timing comparison.