Unlinkable Content Playbacks in a Multiparty DRM System

Abstract : We present a solution to the problem of privacy invasion in a multiparty digital rights management scheme. (Roaming) users buy content licenses from a content provider and execute it at any nearby content distributor. Our approach, which does not need any trusted third party—in contrast to most related work on privacy-preserving DRM—is based on a re-encryption scheme that runs on any mobile Android device. Only a minor security-critical part needs to be performed on the device’s smartcard which could, for instance, be a SIM card.
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https://hal.inria.fr/hal-01490713
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Ronald Petrlic, Stephan Sekula. Unlinkable Content Playbacks in a Multiparty DRM System. 27th Data and Applications Security and Privacy (DBSec), Jul 2013, Newark, NJ, United States. pp.289-296, ⟨10.1007/978-3-642-39256-6_21⟩. ⟨hal-01490713⟩

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