2 research outputs found
Unlinkable content playbacks in a multiparty DRM system
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