@TechReport{Dartmouth:TR2004-484,
  author = {Sean Smith and Nicholas C. Goffee and Sung Hoon Kim and Punch Taylor and Meiyuan Zhao and John Marchesini},
  title = {{Greenpass: Flexible and Scalable Authorization for Wireless Networks}},
  institution = {Dartmouth College, Computer Science},
  address = {Hanover, NH},
  number = {TR2004-484},
  year = {2004},
  month = {January},
  URL = {http://www.cs.dartmouth.edu/reports/TR2004-484.pdf},
  abstract = {
    Wireless networks break the implicit assumptions that supported
    authorization in wired networks (that is: if one could connect, then
    one must be authorized).  However, ensuring that only authorized users
    can access a campus-wide wireless network creates many challenges: we
    must permit authorized guests to access the same network resources
    that internal users do; we must accommodate the de-centralized way
    that authority flows in real universities; we also must work within
    standards, and accommodate the laptops and systems that users already
    have, without requiring additional software or plug-ins.
      This paper describes our ongoing project to address this problem,
    using SPKI/SDSI delegation on top of X.509 keypair within EAP-TLS.
    Within the ``living laboratory'' of Dartmouth's wireless network, this
    project lets us solve real problem with wireless networking, while
    also experimenting with trust flows and testing the limits of current
    tools.
  }
}