%% You should probably cite rfc8417 instead of this I-D.
@techreport{ietf-secevent-token-02,
    number =    {draft-ietf-secevent-token-02},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-ietf-secevent-token/02/},
    author =    {Phil Hunt and William Denniss and Morteza Ansari and Michael B. Jones},
    title =     {{Security Event Token (SET)}},
    pagetotal = 23,
    year =      2017,
    month =     jun,
    day =       30,
    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), which can be optionally signed and/or encrypted. A SET describes a statement of fact from the perspective of an issuer that it intends to share with one or more receivers.},
}