Fog-Assisted Secure Data Exchange for Examination and Testing in E-learning System

摘要: E-learning systems are getting growing interest due to their wide applicability in distance education. A huge amount of data is shared among students, teachers, examiners that should be exchanged a confidential manner. In literature, number related clustering-based schemes explored consider security but still there need for dependable secure schemes. This paper explores Secure System (SES) sharing examinations materials by ensuring protection against various attacks. Exam include tests, quizzes, question papers, answer sheets, and aptitude tests. the first phase, we present authentication mechanism students teachers with trusted server or fog server. Next, Session Key Establishment Protocol (SKEP) setup keys specified time period such as class, seminar exam. We have also maintained level trust regularly check legitimacy students. analysis performed highlight pros cons ensure reliable e-learning systems. testbed using web-services ASP.net C# on windows Azure cloud an scenario. Results demonstrate effectiveness proposed SES terms reducing untrusted exams exposed, student interaction time, level, reputation levels