@misc{wittenburg03defense,
  title = {{A Defense Against Replay Attacks on Chaumian Mixes}},
  author = {Georg Wittenburg},
  howpublished = {Bachelor thesis, Department of Mathematics and Computer Science, Freie Universit{\"a}t Berlin, Berlin, Germany},
  month = {},
  year = {2003},
  abstract = {This paper describes the replay attack against traditional and channel-based Chaumian mixes and puts it into context with other attacks on anonymizing services. It then evaluates different possible approaches to a defense against said attack, concentrating on the question of efficiently recognizing potentially compromised messages within a channel-based cascade of mixes. Finally, an exemplary implementation of a solution is presented for the anonymizing cascade of mixes of the AN.ON project.},
  day = {15},
  file = {http://cst.mi.fu-berlin.de/papers/wittenburg03defense.pdf},
  keywords = {Replay Attack, Chaumian Mix, Cascade of Mixes, David L. Chaum, Anonymity, Unobservability, Traffic Analysis, AN.ON, JAP},
  theme = {nsec},
}