Biometric systems based cryptological key generator design

With the digital transformation, payment methods, like many habits, have undergone a great change. Advantages of the frictionless environment offered by electronic commerce; It has offered a variety of opportunities for many people. However, the security problems experienced in this process have faced many material and moral negativities. The aim of the thesis study is to develop security solution proposals that can address this problem and to design their practical applications. It has been confirmed by many bitter experiences over the last twenty years that classical passwords have various problems. Both the Revenue Administration and the Banks Association have prepared various rules and regulations to solve such problems, and roadmaps on how secure authentication processes should be done to address these problems. It is a serious problem to prove the security of payment systems with mathematical approaches within the framework of the determined rules. In the thesis study, it was tried to investigate what could be the solution proposals that could address these problems. Various Hardware Security Modules are available to guarantee the security of payment systems. However, these modules have problems in terms of cost and performance. It is thought that the proposed hardware-based solutions can be implemented in software and in this process, biometric measurements can make serious contributions to obtain unique values. The successful analysis results obtained as a result of the preliminary studies have shown that this hypothesis is supported and it is thought that it can be used successfully in various practical applications in the future.