%% You should probably cite rfc8225 instead of this I-D.
@techreport{ietf-stir-passport-00,
    number =    {draft-ietf-stir-passport-00},
    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-stir-passport/00/},
    author =    {Chris Wendt and Jon Peterson},
    title =     {{Persona Assertion Token}},
    pagetotal = 12,
    year =      2016,
    month =     feb,
    day =       22,
    abstract =  {This document defines a token format for verifying with non- repudiation the sender of and authorization to send information related to the originator of personal communications. A cryptographic signature is defined to protect the integrity of the information used to identify the originator of a personal communications session toward a terminating entity. The cryptographic signature is defined with the intention that it can confidently verify the originating persona even when the signature is sent to the terminating party over a potentially unsecure channel. The Persona Assertion Token (PASSporT) is particularly useful for many personal communications applications over IP networks and other multi-hop interconnection scenarios where the originating and terminating parties may not have a direct trusted relationship.},
}