A Trust Model for Distributed E-Learning Service Control *

As with traditional face-to-face education, "trust" is an important factor for the interactive e-learning. To deal with security and privacy concerns, this paper proposes a trust model for distributed interactive e-learning applications. The working mechanisms are based on policy-negotiation and public key cryptography. By using this model and proposed approach, fine-grained trust control of common e-learning services can be maintained. The logical model, core concepts, and typical e-learning trust interaction processes are described. An example is also provided to illustrate how the introduced model would be deployed.