Dutta, Ratna and Dowling, Thomas and Mukhopadhyay, Sourav
Key management in multi-distributor based DRM
system with mobile clients using IBE.
IEEE Sensors Journal.
Current Digital Rights Management (DRM) systems
support only two-party systems, involving the package server and purchaser. However, for a scalable business model of transacting digital assets, a multi-party DRM system is often necessary which involves more than one distributors, who can promote and distribute the content in regions unknown to the package server. We propose a key management scheme for a DRM system that involves more than one distributors with the DRM client’s flexibility of choosing a distributor according to his own
preference. For instance, a mobile DRM client may contact to a
distribution server who is nearest to him by location or who offers
promotions/discounts on the price or offers more commissions.
In our scheme, the package server does not trust the distribution
servers or the license server. The encrypted digital content sent
by a package server can only be decrypted by the DRM client
who has a valid license and is protected from attacks by other
parties/servers in the system. Moreover, we use Identity-Based
Encryption (IBE) that incurs less computation cost and storage
as certificate managements are not necessary and certificate
verifications are no longer needed. These features make our DRM
system suitable for more effective business models/applications
with the flexibility in deciding a wide range of business strategies
as compared to the existing works.
||Cryptography; digital rights management; non controlled Indexing; IBE; certificate managements; digital content encryption; digital rights management; identity-based encryption; mobile DRM client; multi-distributor-based DRM system; multi-party DRM system; two-party systems;
||Faculty of Science and Engineering > Computer Science
Dr. Tom Dowling
||15 Dec 2010 10:38
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||IEEE Sensors Journal
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