%% You should probably cite draft-irtf-cfrg-kangarootwelve instead of this I-D.
@techreport{viguier-kangarootwelve-04,
    number =    {draft-viguier-kangarootwelve-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-viguier-kangarootwelve/04/},
    author =    {Benoît Viguier},
    title =     {{KangarooTwelve}},
    pagetotal = 16,
    year =      2019,
    month =     feb,
    day =       7,
    abstract =  {This document defines the KangarooTwelve eXtendable Output Function (XOF), a hash function with output of arbitrary length. It provides an efficient and secure hashing primitive, which is able to exploit the parallelism of the implementation in a scalable way. It uses tree hashing over a round-reduced version of SHAKE128 as underlying primitive. This document builds up on the definitions of the permutations and of the sponge construction in {[}FIPS 202{]}, and is meant to serve as a stable reference and an implementation guide.},
}