The intellectual property protection problem has been an obstacle to restrict the development of distance education. Enhancing the intellectual property protection of educational resources will make great realistic significance in improving quality of distance education. DRM provides technological support to the intellectual property protection in distance education. In the first part of this paper, we introduce the current situation of DRM technology and its fundamental features. And then, through analysis of the special demands of the educational field and contrastive study of security techn...
