Domain Based Content Sharing in Digital Home

DRM (Digital Rights Management) and CAS (Conditional Access System) techniques have been used to cut off the illegal use of contents. These techniques, however, brought about much inconvenience as restricting the move or play of the contents of even legal users. In this paper, we propose a new technique for sharing DRM contents based on domain according to the increment of the demand about the pliant use and share of the contents in digital home. The proposed scheme can prevent contents being flowed out and cut off the illegal use as describing domain license in the extent of DRM license.