Design and Implementation of Encryption Scheme in Web-based Examination System

Abstract

Requirements on encryption of web-based examination system were analyze, and different encryption technologies were used to meet the needs on three levels, including important data, core processing logic and some restricted functions. For important data, its confidentiality and integrity were realized. The core processing logic in ASP script was built in COM component. And some restricted functions were protected with hardware key. Encryption which protected data, code and function provided necessary safety for the web-based examination system. Keywords-web-based examination; data encryption; COM component; three-level encryption