@inproceedings{qpok,
  author       = {Unruh, Dominique},
  title        = {Quantum Proofs of Knowledge},
  booktitle    = {Eurocrypt 2012},
  month        = {April},
  year         = {2012},
  note         = {To appear, preprint on IACR ePrint 2010/212}
}