@article{polytime-uc,
  author       = {Hofheinz, Dennis and Unruh, Dominique and M\"{u}ller-Quade, J\"{o}rn},
  title        = {Polynomial Runtime and Composability},
  journal      = {Journal of Cryptology},
  month        = {October},
  year         = {2012},
  publisher    = {Springer-Verlag},
  note         = {Preprint on IACR ePrint 2009/023}
}