GOTCHA password hackers!

Jeremiah Blocki, Manuel Blum, Anupam Datta. GOTCHA password hackers!. In Ahmad-Reza Sadeghi, Blaine Nelson, Christos Dimitrakakis, Elaine Shi, editors, AISec'13, Proceedings of the 2013 ACM Workshop on Artificial Intelligence and Security, Co-located with CCS 2013, Berlin, Germany, November 4, 2013. pages 25-34, ACM, 2013. [doi]

@inproceedings{BlockiBD13-0,
  title = {GOTCHA password hackers!},
  author = {Jeremiah Blocki and Manuel Blum and Anupam Datta},
  year = {2013},
  doi = {10.1145/2517312.2517319},
  url = {http://doi.acm.org/10.1145/2517312.2517319},
  researchr = {https://researchr.org/publication/BlockiBD13-0},
  cites = {0},
  citedby = {0},
  pages = {25-34},
  booktitle = {AISec'13, Proceedings of the 2013 ACM Workshop on Artificial Intelligence and Security, Co-located with CCS 2013, Berlin, Germany, November 4, 2013},
  editor = {Ahmad-Reza Sadeghi and Blaine Nelson and Christos Dimitrakakis and Elaine Shi},
  publisher = {ACM},
  isbn = {978-1-4503-2488-5},
}