%% You should probably cite draft-ietf-secevent-token instead of this I-D.
@techreport{hunt-idevent-token-04,
    number =    {draft-hunt-idevent-token-04},
    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/04/},
    author =    {Phil Hunt and William Denniss and Morteza Ansari and Michael B. Jones},
    title =     {{Security Event Token (SET)}},
    pagetotal = 17,
    year =      2016,
    month =     sep,
    day =       1,
    abstract =  {This specification defines the Security Event token, which may be distributed via a protocol such as HTTP. The Security Event Token (SET) specification profiles the JSON Web Token (JWT) and may be optionally signed and/or encrypted. A SET describes a statement of fact that may be shared by an event publisher with event subscribers.},
}