%% You should probably cite rfc6955 instead of this I-D.
@techreport{schaad-pkix-rfc2875-bis-02,
    number =    {draft-schaad-pkix-rfc2875-bis-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-schaad-pkix-rfc2875-bis/02/},
    author =    {Jim Schaad and Hemma Prafullchandra},
    title =     {{Diffie-Hellman Proof-of-Possession Algorithms}},
    pagetotal = 39,
    year =      2012,
    month =     aug,
    day =       1,
    abstract =  {This document describes two methods for producing an integrity check value from a Diffie-Hellman key pair and one method for producing an integrity check value from an Elliptic Curve key pair. This behavior is needed for such operations as creating the signature of a PKCS \#10 certification request. These algorithms are designed to provide a proof-of-possession rather than general purpose signing.},
}