@inproceedings{ reg-study-upsec08,
  author = "Chris Karlof and J.D. Tygar and David Wagner",
  title = "A User Study Design for Comparing the Security of Registration Protocols",
  booktitle = "First USENIX Workshop on Usability, Psychology, and Security (UPSEC 2008)",
  month = "April",
  year = 2008 }