Study of Document Security Management in Cooperative Learning System

With the rapid development of multimedia network technology, the traditional teaching modes and learning styles have undergone profound changes. Collaborative learning is just a new teaching mode that comes into being under contemporary teaching circumstance. It is important to train students' cooperative spirit and innovative consciousness. But current collaborative learning system faces with some issues such as security of document. In this paper, we present a model of document security management in cooperative learning system. This scheme provides joint-mode authentication. It can choose authentication mode according to the need of documents' security level and simultaneously provide learning resource authentication.