Digital rights management with right delegation for home networks

Authors:
Heeyoul Kim;Younho Lee;Byungchun Chung;Hyunsoo Yoon;Jaewon Lee;KyungIm Jung
Affiliations:
Network and Security Laboratory, Division of Computer Science, Korea Advanced Institute of Science and Technology (KAIST);Network and Security Laboratory, Division of Computer Science, Korea Advanced Institute of Science and Technology (KAIST);Network and Security Laboratory, Division of Computer Science, Korea Advanced Institute of Science and Technology (KAIST);Network and Security Laboratory, Division of Computer Science, Korea Advanced Institute of Science and Technology (KAIST);Software Laboratories, Samsung Electronics CO., LTD., Suwon, Korea;Software Laboratories, Samsung Electronics CO., LTD., Suwon, Korea
Venue:
ICISC'06 Proceedings of the 9th international conference on Information Security and Cryptology
Year:
2006

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Abstract

The purpose of digital rights management (DRM) is to protect the copyrights of content providers and to enable only designated user to access digital contents. For a user to share the contents among all his devices in the home network, several domain-based approaches that group multiple devices into a domain have been proposed. In these approaches, however, each device in a domain has equivalent rights on all contents although certain contents require an access control between the devices. In this paper, a new DRM system for home networks is presented. This system enables access control on the contents by a right delegation strategy with proxy certificates. Moreover, it also provides additional functionalities, including restricted sharing and temporal sharing of contents, which are necessary for ordinary scenarios in home networks.