Security Study Of EQuiz Electronic Examination System

In this paper, the security problems of examination system based on Web are researched. According to the characteristics of eQuiz examination system, some security problems and security technologies and methods ensuring system security are analyzed. Moreover, implementing the security mechanism and solutions are presented.Starting from the structure and functions of eQuiz system referring to network security system, implement mechanism of examination system security is provided and research of security surrounding the whole security system in the paper. eQuiz's running environmental security is analyzed. It is adopted Multi-directions and multi-views in identity authentication and access control.Data transportation is encrypted during examination and partial operations on client side is limited in order to avoid students'cheating. Owing to network failure and maloperation result in exam interrupting, the thesis solved disposal and restoring, making use of Ajax technology. Finally, it is discussed security of examination system's questions and grades. According to characteristics of questions and grades, encryption algorithm and key management are adopted. In order to further protect security of grades, three-level management model of grade security is introduced.Through testing, security measures mentioned above strengthen security of eQuiz examination system and provide other resemble system a reference.