%% You should probably cite rfc2984 instead of this I-D.
@techreport{ietf-smime-cast-128-02,
    number =    {draft-ietf-smime-cast-128-02},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-ietf-smime-cast-128/02/},
    author =    {Dr. Carlisle Adams},
    title =     {{Use of the CAST-128 Encryption Algorithm in CMS}},
    pagetotal = 6,
    year =      2000,
    month =     apr,
    day =       10,
    abstract =  {This document specifies how to incorporate CAST-128 into the S/MIME Cryptographic Message Syntax (CMS) as an additional algorithm for symmetric encryption. {[}STANDARDS-TRACK{]}},
}