@inproceedings{backes03composable,
  author       = {Backes, Michael and Pfitzmann, Birgit and Waidner, Michael},
  title        = {A Composable Cryptographic Library with Nested Operations (Extended Abstract)},
  booktitle    = {Proceedings of 10th ACM Conference on Computer and Communications Security (CCS)},
  month        = {October},
  year         = {2003},
  pages        = {220-230},
  note         = {Preprint on IACR ePrint 2003/015}
}