Jung Hoon Kim , Hoon Jung Lee , Sang Jin Kim , Hee Kuck Oh

The KIPS Transactions:PartC, Vol. 18, No. 3, pp. 135-142, Jun. 2011
10.3745/KIPSTC.2011.18.3.135,   PDF Download:

Abstract

Recently, the strategy for N-screen service is in the spotlight along with the consumer`s need to use contents regardless of time and place due to the rapid development of communication technology, which is meshing with the desire of service providers seeking a new business model. N-screen, as a screen-extension-concept service which enables consumers to continuously share and use contents in various equipments such as TV, computer and portable terminals, is an advanced type of 3-screen service strategy initially proposed by AT&T, an American telecommunication company. In the N-screen service for pay-contents, in order to support continuous screen changes to and from various equipments, temporary watching right should be given to the equipment intended for screen change. However, it is impossible to give the temporary watching right in the present broadcasting environment, adopting an access-control system. In this paper, the access-control technology being used for pay-contents in the present broadcasting environment and the reason for not being able to give temporary watching right, will be examined. After the examination, the solution for delegation of watching right by using an additional key on the basis of currently used access-control technology, will be proposed.

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