@InProceedings{golle-wagner-sp07,
  author    = {Philippe Golle and David Wagner},
  title     = {Cryptanalysis of a Cognitive Authentication Scheme},
  booktitle = {2007 IEEE Symposium on Security and Privacy},
  year      = 2007,
  location  = {Berkeley, CA},
  pages     = {66--70},
  publisher = {IEEE Computer Society}
}