%% You should probably cite rfc2268 instead of this I-D.
@techreport{rivest-rc2desc-00,
    number =    {draft-rivest-rc2desc-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-rivest-rc2desc/00/},
    author =    {Ronald L. Rivest},
    title =     {{A Description of the RC2(r) Encryption Algorithm}},
    pagetotal = 11,
    year =      1997,
    month =     jun,
    day =       24,
    abstract =  {This memo describes a conventional (secret-key) block encryption algorithm, called RC2, which may be considered as a proposal for a DES replacement. This memo provides information for the Internet community. It does not specify an Internet standard of any kind.},
}