@misc{rfc9336,
    series =    {Request for Comments},
    number =    9336,
    howpublished =  {RFC 9336},
    publisher = {RFC Editor},
    doi =       {10.17487/RFC9336},
    url =       {https://www.rfc-editor.org/info/rfc9336},
    author =    {Tadahiko Ito and Tomofumi Okubo and Sean Turner},
    title =     {{X.509 Certificate General-Purpose Extended Key Usage (EKU) for Document Signing}},
    pagetotal = 8,
    year =      2022,
    month =     dec,
    abstract =  {RFC 5280 specifies several extended key purpose identifiers (KeyPurposeIds) for X.509 certificates. This document defines a general-purpose Document-Signing KeyPurposeId for inclusion in the Extended Key Usage (EKU) extension of X.509 public key certificates. Document-Signing applications may require that the EKU extension be present and that a Document-Signing KeyPurposeId be indicated in order for the certificate to be acceptable to that Document-Signing application.},
}