Modeling Diffie Hellman Key Exchange Algorithm using Object-Oriented Analysis and Design Technique

Modeling Diffie Hellman Key Exchange Algorithm using Object-Oriented Analysis and Design Technique Authors Ashioba, Nwanze Chukwudi1, Emma-Osiebe Obaro2, Ogbodhu, Charles Uzoma-Odoji-Kpasa3, Ndubuife Nonso Daniel4, 1Dennis Osadebay University AnwaiAsaba, Nigeria, 2Delta State polytechnic Ogwashi-uku, Nigeria, 3Michael & Cecilia Ibru University, Nigeria, 4National Open University of Nigeria Abstract In a communicating system, information transmitted from one location (sender) to another (receiver) is secured or protected from unauthorized users or intruders. Many cryptographic algorithms have been used to prevent and protect data and information from being hacked by intruders. Both symmetric and asymmetric algorithms have not been successful in simulating cryptosystems as real-world issues with things enclosed in properties and procedures. This research simulates the Diffie Hellman key exchange algorithm using object-oriented analysis and design techniques. The researchers used the Unified Modeling Language tools in the analysis and design of the system and implemented the Diffie Hellman key exchange algorithm using C++ object-oriented programming language. The outcome demonstrates that cryptosystems are actual issues with entities having encapsulated properties and functions. Keywords Asymmetric cryptography, Cryptography, public key, private key and symmetric cryptography