@misc{JTVDx16z,
  author = { Ari Juels and Nikolaos Triandopoulos and Marten Van Dijk and John Brainard
             and Ronald Rivest and Kevin Bowers },
  title =  { Server methods and apparatus for processing passcodes generated by configurable
             one-time authentication tokens },
  howpublished = { U.S. Patent 9,294,473 },
  date =   { 2016-03-22 },
  OPTmonth = { March 22, },
  OPTyear =  { 2016 },
  urla =   { <a href="https://patents.google.com/patent/US9294473">google-patent-page</a> },
  abstract = { Server methods and apparatus are provided for
                  processing passcodes generated by configurable
                  one-time authentication tokens. An authentication
                  server is configured to process an original passcode
                  generated by a configurable one-time authentication
                  token by configuring the authentication server to
                  have a server configuration that is compatible with
                  a selected configuration of the configurable
                  one-time authentication token; receiving a candidate
                  passcode based on the original passcode generated by
                  the configurable one-time authentication token; and
                  processing the Is candidate passcode based on the
                  server configuration. The selected configuration of
                  the configurable one-time authentication token must
                  always enable a forward-secure pseudorandom number
                  generation feature for the one-time authentication
                  token and at least one additional selected token
                  feature. }
}