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 TECHNIQUEAshioba, Nwanze Chukwudi1, Emma-Osiebe Obaro2, Ogbodhu, Charles Uzoma-Odoji-Kpasa3, Ndubuife Nonso Daniel41Dennis Osadebay University AnwaiAsaba, Delta State, Nigeria2Delta State polytechnic Ogwashi-uku, Delta State, Nigeria3Michael & Cecilia Ibru University, Delta State, Nigeria4National Open University of Nigeria.ABSTRACTIn 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.

KEYWORDSAsymmetric cryptography, Cryptography, public key, private key and symmetric cryptography