xCP: Peer-to-Peer content protection

The inherently controlled nature of digital rights management systems does little to promote inter-operability of systems provided by different vendors. In this paper, we consider import and export functionality by which multimedia protected by one digital rights management regime can be made available to a multimedia device that supports a different digital rights management regime, without compromising the protection afforded to the content under the original regime. We first identify specific issues to be addressed by developers of digital rights management import/export regimes and outline a variety of methods by which these regimes may be implemented. We then apply our observations to the specific example of import and export of content between the digital rights management regimes defined by the Motion Picture Exports Group and the Open Mobile Alliance. AbstractThe inherently controlled nature of digital rights management systems does little to promote interoperability of systems provided by different vendors.In this paper, we consider import and export functionality by which multimedia protected by one digital rights management regime can be made available to a multimedia device that supports a different digital rights management regime, without compromising the protection afforded to the content under the original regime. We first identify specific issues to be addressed by developers of digital rights management import/export regimes and outline a variety of methods by which these regimes may be implemented. We then apply our observations to the specific example of import and export of content between the digital rights management regimes defined by the Motion Picture Exports Group and the Open Mobile Alliance.

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“…Some systems for transferring content between terminals within a single household are proposed in [20] and [25], for example.…”

Section: Import/exportmentioning

confidence: 99%

Import/export in digital rights management

Safavi–Naini

Sheppard

Uehara

2004

Proceedings of the 4th ACM Workshop on Digital Rights Management

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“…Some early systems simply fix an upper bound on the number of devices permitted in a domain [9,86], with the expectation that this number would be chosen to represent the upper limit of the number of devices owned by a single household. Other systems use the licence issuer as the domain controller [84], so that the rights-holder is able to determine directly what devices should be members of a domain.…”

Section: Authorised Domainsmentioning

confidence: 99%

Digital Rights Management

Sheppard¹

2010

Chapman &Amp; Hall/CRC Cryptography and Network Security Series

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Digital rights management allows information owners to control the use and dissemination of electronic documents via a machine-readable licence. Documents are distributed in a protected form such that they may only be used with trusted environments, and only in accordance with terms and conditions stated in the licence. Digital rights management has found uses in protecting copyrighted audio-visual productions, private personal information, and companies' trade secrets and intellectual property. This chapter describes a general model of digital rights management together with the technologies used to implement each component of a digital rights management system, and desribes how digital rights management can be applied to secure the distribution of electronic information in a variety of contexts.

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“…Many researchers and industry participants have suggested various schemes for the rights sharing problem [6,8,9,12,[14][15][16]. One of them is the authorized domain model that permits a consumer to create a content sharing group, which is composed of a limited number of devices, named as a domain [6,9,12,14,15].…”

Section: Introductionmentioning

confidence: 99%

Redistributing time-based rights between consumer devices for content sharing in DRM system

Lee

Kim

Hong

2009

Int. J. Inf. Secur.

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Device-based digital rights management (DRM) systems tightly bind rights for content to a device. However, it can decrease the consumers' convenience because it disturbs consumers who want to use the already purchased content with their other devices freely. Previous research into solving this problem still have burdens such as restricting the number of devices that a consumer can use and requiring a special device that manages content sharing. In this paper, we propose a new rights sharing scheme which does not restrict the number of devices that a consumer can use and does not require a specialized device. In our scheme, the right to use content is represented as the right to use the content for a certain amount of time. Consumers can use the content with any of their devices by redistributing the usage amount of time between devices. The redistribution process only requires local synchronization among participating devices. To prevent illegal content sharing and to detect illegally increased content usage time, the amount of time that a consumer can have is limited and the rights for each unit of time has a unique number to prevent illegal duplications. We present data structures and protocols, analyze security properties of our scheme, compare our scheme with related work, and evaluate our scheme through implementation.

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xCP: Peer-to-Peer content protection

Cited by 22 publications

References 2 publications

Import/export in digital rights management

Import/export in digital rights management

Digital Rights Management

Redistributing time-based rights between consumer devices for content sharing in DRM system

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