%% You should probably cite rfc8645 instead of this I-D.
@techreport{irtf-cfrg-re-keying-09,
    number =    {draft-irtf-cfrg-re-keying-09},
    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-cfrg-re-keying/09/},
    author =    {Stanislav V. Smyshlyaev},
    title =     {{Re-keying Mechanisms for Symmetric Keys}},
    pagetotal = 53,
    year =      2017,
    month =     dec,
    day =       29,
    abstract =  {A certain maximum amount of data can be safely encrypted when encryption is performed under a single key. This amount is called "key lifetime". This specification describes a variety of methods to increase the lifetime of symmetric keys. It provides external and internal re-keying mechanisms based on hash functions and on block ciphers, that can be used with modes of operations such as CTR, GCM, CBC, CFB and OMAC.},
}