%% You should probably cite draft-ietf-oauth-signed-http-request instead of this I-D.
@techreport{richer-oauth-signed-http-request-01,
    number =    {draft-richer-oauth-signed-http-request-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-richer-oauth-signed-http-request/01/},
    author =    {Justin Richer and John Bradley and Hannes Tschofenig},
    title =     {{A Method for Signing an HTTP Requests for OAuth}},
    pagetotal = 11,
    year =      2014,
    month =     apr,
    day =       24,
    abstract =  {This document a method for offering data origin authentication and integrity protection of HTTP requests. To convey the relevant data items in the request a JSON-based encapsulation is used and the JSON Web Signature (JWS) technique is re-used. JWS offers integrity protection using symmetric as well as asymmetric cryptography.},
}