@Misc{Riv98c,
  author = 	 { Ronald L. Rivest },
  title = 	 { A Description of the {RC2}(r) Encryption Algorithm },
  howpublished = { Internet Network Working Group Request for Comments: RFC 2268.},
  date =         { 1998-03 },                  
  OPTyear = 	 { 1998 },
  OPTmonth = 	 { March },
  abstract =     {
        This memo describes a conventional (secret-key) block encryption
        algorithm, called RC2, which may be considered as a proposal for a
        DES replacement. The input and output block sizes are 64 bits each.
        The key size is variable, from one byte up to 128 bytes, although the
        current implementation uses eight bytes. \par
        The algorithm is designed to be easy to implement on 16-bit
        microprocessors. On an IBM AT, the encryption runs about twice as
        fast as DES (assuming that key expansion has been done).
                 },
}