%% You should probably cite draft-irtf-cfrg-hpke instead of this I-D.
@techreport{barnes-cfrg-hpke-01,
    number =    {draft-barnes-cfrg-hpke-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-barnes-cfrg-hpke/01/},
    author =    {Richard Barnes and Karthikeyan Bhargavan},
    title =     {{Hybrid Public Key Encryption}},
    pagetotal = 13,
    year =      2019,
    month =     mar,
    day =       11,
    abstract =  {This document describes a scheme for hybrid public-key encryption (HPKE). This scheme provides authenticated public key encryption of arbitrary-sized plaintexts for a recipient public key. HPKE works for any Diffie-Hellman group and has a strong security proof. We provide instantiations of the scheme using standard and efficient primitives.},
}