@inproceedings{yu2009defending,
  title={Defending against key abuse attacks in KP-ABE enabled broadcast systems},
  author={Yu, Shucheng and Ren, Kui and Lou, Wenjing and Li, Jin},
  booktitle={International Conference on Security and Privacy in Communication Systems},
  pages={311--329},
  year={2009},
  organization={Springer}
}