%% You should probably cite draft-ietf-secevent-token instead of this I-D.
@techreport{hunt-idevent-token-01,
    number =    {draft-hunt-idevent-token-01},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-hunt-idevent-token/01/},
    author =    {Phil Hunt and William Denniss and Morteza Ansari},
    title =     {{Identity Event Token}},
    pagetotal = 14,
    year =      2016,
    month =     apr,
    day =       8,
    abstract =  {This specification defines an Identity Event token which may be distributed via a protocol such as HTTP. An identity event token is based on the JSON Web Token and may be optionally signed and/or encrypted. It describes a statement of fact that may be shared by an event publisher with registered subscribers.},
}