Achieving Rights Untransferability with Client-Independent Servers

@article{DomingoFerrer1996AchievingRU,
  title={Achieving Rights Untransferability with Client-Independent Servers},
  author={Josep Domingo-Ferrer},
  journal={Des. Codes Cryptography},
  year={1996},
  volume={8},
  pages={263-271}
}
This article presents a scheme for enforcing access rights untransferability in a client-server scenario. Assumptions include a central authority and servers which are trusted and hold no access information about clients. For a client sharing none of her rights, usurpation of a right seems as hard as the discrete logarithm. Also, rights sharing between… CONTINUE READING