Construction of Graduation Certificate Issuing System. Based on Digital Signature Technique

      Аннотация: The processes of issuing the various documents are still in a paper form and have been done in a manually and routinely manner that does not fit with the technological progress and the current age requirements and variations. The switching from paper based work to a fully computerized work is not without difficulties. As a result, many systems have been developed in the recent years. This book identifies eight intertwined elected services; namely: message authentication, entity authentication, integrity, non-repudiation, time stamping, distinguished signing authorities, delegating signing capability, and supporting workflow systems.This book gives the steps required to construct Graduation Certificates Issuing System (GCIS) based on cryptographic technologies. The main objectives of the research undertaken are: To design and implement the proposed Graduation Certificates Issuing System (GCIS). To investigate the benefits of implementing the proposed system. To compare the proposed system with the existing works. The proposed GCIS overcomes the drawbacks in the existing systems and schemes.

Ключевые слова: digital signature, graduation certificates issuing system, unified modeling language, time stamp, non-repudiation