AN ENHANCED ADVANCED ENCRYPTION STANDARD (EAES) ALGORITHM FOR SECURE FIBER OPTIC COMMUNICATION

Abstract

Fiber optic communication is a part of optical communication where the data is transmitted and received via optical cables. It is widely used due to its advantages over traditional communication systems. Security is considered as a main concern in any communication systems. Since fiber optics transfers data efficiently for longer distances, an end to end secured fiber optic communication is very difficult. Advanced encryption Standard (AES) is a symmetrical encryption algorithm which founds to be more secure, faster and stronger where tapping of data is not quite easy. As the cyber attacks are continuously developing, AES algorithm is broken by some attacks namely brute force, differential, algebraic and linear attacks. To overcome the limitations of AES algorithm, a new enhanced AES algorithm abbreviated as EAES algorithm is proposed for secured fiber optic communication. EAES differs from AES algorithm in two ways: Dynamic Key Generation and Dynamic s-box generation. It increases the complexity to break the encryption process and also makes it more difficult for the attacker to hack the data.The proposed EAES algorithm is simulated and the results are analyzed in terms of throughput and conversion time. The results show that the EAES method attains higher end to end security in fiber optic communication.