%% You should probably cite rfc5485 instead of this I-D.
@techreport{housley-internet-draft-sig-file-08,
    number =    {draft-housley-internet-draft-sig-file-08},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-housley-internet-draft-sig-file/08/},
    author =    {Russ Housley},
    title =     {{Digital Signatures on Internet-Draft Documents}},
    pagetotal = 14,
    year =      2009,
    month =     jan,
    day =       29,
    abstract =  {This document specifies the conventions for digital signatures on Internet-Drafts. The Cryptographic Message Syntax (CMS) is used to create a detached signature, which is stored in a separate companion file so that no existing utilities are impacted by the addition of the digital signature. This memo provides information for the Internet community.},
}