@article{qtc-jacm,
  author       = {Unruh, Dominique},
  title        = {Revocable quantum timed-release encryption},
  journal      = {Journal of the ACM},
  volume       = {62},
  number       = {6},
  year         = {2015},
  publisher    = {ACM},
  pages        = {49:1-76},
  note         = {Preprint on IACR ePrint 2013/606}
}