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Interoperable conditional access with video selective encryption for portable devices

Asghar, Mamoona Naveed and Fleury, Martin and Makki, Sohail (2016) 'Interoperable conditional access with video selective encryption for portable devices.' Multimedia Tools and Applications. ISSN 1380-7501

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Abstract

The pay-TV industry seeks to extend its reach to portable display devices. At the same time, it seeks to ensure a horizontal market by making interoperable the Conditional Access Systems (CASs) employed to protect content. To achieve interoperability for such devices, this paper proposes a form of selective encryption for video that allows simultaneous distribution of a small percentage of video data on a per-CAS basis, allowing sharing of the unencrypted video between the CASs. The bitrate overhead for each additional CAS enabled is found to be on average 7.41 %, whereas the computational overhead amounts to no more than 40 ms for the benchmark sequences tested. Adaptation of CAS to transparent encryption of scalable video is also demonstrated in this paper.

Item Type: Article
Uncontrolled Keywords: Conditional access; Pay-TV; Selective encryption; Video streaming
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Divisions: Faculty of Science and Health > Computer Science and Electronic Engineering, School of
Depositing User: Jim Jamieson
Date Deposited: 02 Mar 2017 11:56
Last Modified: 02 Mar 2017 11:56
URI: http://repository.essex.ac.uk/id/eprint/19193

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