@misc{rfc9216,
    series =    {Request for Comments},
    number =    9216,
    howpublished =  {RFC 9216},
    publisher = {RFC Editor},
    doi =       {10.17487/RFC9216},
    url =       {https://www.rfc-editor.org/info/rfc9216},
    author =    {Daniel Kahn Gillmor},
    title =     {{S/MIME Example Keys and Certificates}},
    pagetotal = 32,
    year =      2022,
    month =     apr,
    abstract =  {The S/MIME development community benefits from sharing samples of signed or encrypted data. This document facilitates such collaboration by defining a small set of X.509v3 certificates and keys for use when generating such samples.},
}