%% You should probably cite draft-irtf-hiprg-revocation-05 instead of this revision.
@techreport{irtf-hiprg-revocation-04,
    number =    {draft-irtf-hiprg-revocation-04},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-irtf-hiprg-revocation/04/},
    author =    {Dacheng Zhang and Dmitriy Kuptsov and Sean Shen},
    title =     {{Host Identifier Revocation in HIP}},
    pagetotal = 17,
    year =      ** No value found for 'doc.pub_date.year' **,
    month =     ** No value found for 'doc.pub_date' **,
    day =       ** No value found for 'doc.pub_date.day' **,
    abstract =  {This document mainly analyzes the key revocation issue with host identifiers (HIs) in the Host Identity Protocol (HIP). Generally, key revocation is an important functionality of key management systems; it is concerned with the issues of removing cryptographic keys from operational use when they are not secure or not secure enough any more. This functionality is particularly important for the security systems expected to execute for long periods. This document also attempts to investigate several issues that a designer of HI revocation mechanisms need to carefully consider.},
}