Security Design And Implementation Of Tracing System To Courseware Learning Process

The tracing system to courseware learning process is a system which can record online or offline courseware learning process exactly. It can provide more detailed basic data to process-assessment in distance education and resolves the problem that the process-assessment tends to be simple because the former technology is unable to record the courseware learning process accurately. Due to the usage of SOAP as the protocol to store and transfer data in the system, the traditional security solution cannot fulfil the security requirment of SOAP, we must carry through an in-depth study on the security of SOAP considering the characteristic of the tracing system to courseware learning process and put forward a solution of the system security design.In this dissertation, there is a simple introduction to SOAP message and its characteristics firstly, and we analyse the security requirements of SOAP message in further: end-to-end message security,selective security protection,independence of transfer protocol, long-term affirmance. Considering these security requirement and the deficiency of the traditional technology such as SSL, we apply WS-Security criterion.We summarize the framework of tracing system to courseware learning process firstly, introduce the security problems that exist in the function modules such as the autherntication of logging on system, the courseware indentification, the local account and learning record storage and transfer. Then we analyse the security designing requirment of these function modules and the limiting factor of implement. We utilize WS-Security citerion such as XML encryption and XML Signature along with the security threatening to analyse, design and realize the security mechanism of logging on and authentication message, courseware indentification, encryption and tamperproof of local account and learning record storage, and safely transfering the learning record. So we fulfil the security requirement of the tracing system to courseware learning process.