@techreport{housley-spasm-eku-constraints-03,
    number =    {draft-housley-spasm-eku-constraints-03},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-housley-spasm-eku-constraints/03/},
    author =    {Russ Housley},
    title =     {{Extended Key Usage Constraints}},
    pagetotal = 9,
    year =      2016,
    month =     may,
    day =       26,
    abstract =  {This document specifies the extended key usage constraints certificate extension, which is used to place restrictions on the key purpose identifiers that are authorized to appear in the end-entity certificate in a certification path. Restrictions apply to the extended key usage certificate extension, which is described in RFC 5280.},
}