%% You should probably cite draft-ietf-cose-hpke instead of this I-D.
@techreport{tschofenig-cose-hpke-00,
    number =    {draft-tschofenig-cose-hpke-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-tschofenig-cose-hpke/00/},
    author =    {Hannes Tschofenig and Russ Housley and Brendan Moran},
    title =     {{Use of Hybrid Public-Key Encryption (HPKE) with CBOR Object Signing and Encryption (COSE)}},
    pagetotal = 10,
    year =      2021,
    month =     oct,
    day =       25,
    abstract =  {This specification defines hybrid public-key encryption (HPKE) for use with CBOR Object Signing and Encryption (COSE).},
}