%% You should probably cite rfc2202 instead of this I-D.
@techreport{cheng-hmac-test-cases-00,
    number =    {draft-cheng-hmac-test-cases-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-cheng-hmac-test-cases/00/},
    author =    {K. Robert Glenn and Pau-Chen Cheng},
    title =     {{Test Cases for HMAC-MD5 and HMAC-SHA-1}},
    pagetotal = 9,
    year =      1997,
    month =     mar,
    day =       25,
    abstract =  {This document provides two sets of test cases for HMAC-MD5 and HMAC- SHA-1, respectively. HMAC-MD5 and HMAC-SHA-1 are two constructs of the HMAC {[}HMAC{]} message authentication function using the MD5 {[}MD5{]} hash function and the SHA-1 {[}SHA{]} hash function. This memo provides information for the Internet community. This memo does not specify an Internet standard of any kind.},
}