A Study on Licence Management Model for Contents Circulation which Ubiquitous Environment is Safe

유비쿼터스 환경의 안전한 콘텐츠 유통을 위한 라이센스 관리 모델 연구

This paper propose an interested digital rights protection scheme using license agent to address problems facing contemporary DRM approached : static digital rights management, and limited application to on-line environment. We introduce a dynamic mission control technology to realize dynamic digital rights management. And we incorporate license agent to on- and off-line monitoring and tracking. The proposed system prevent illegal access and use by using PKI security method, real time action monitoring for user, data security for itself.