%% You should probably cite draft-ietf-kitten-aes-cts-hmac-sha2 instead of this I-D.
@techreport{ietf-kitten-aes-cbc-hmac-sha2-00,
    number =    {draft-ietf-kitten-aes-cbc-hmac-sha2-00},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-ietf-kitten-aes-cbc-hmac-sha2/00/},
    author =    {Michael J. Jenkins and Michael Peck and Kelley W. Burgin},
    title =     {{AES Encryption with HMAC-SHA2 for Kerberos 5}},
    pagetotal = 15,
    year =      2013,
    month =     oct,
    day =       1,
    abstract =  {This document specifies two encryption types and two corresponding checksum types for Kerberos 5. The new types use AES in CBC mode with plaintext padding for confidentiality and HMAC with a SHA-2 hash for integrity.},
}