@misc{rfc6031,
    series =    {Request for Comments},
    number =    6031,
    howpublished =  {RFC 6031},
    publisher = {RFC Editor},
    doi =       {10.17487/RFC6031},
    url =       {https://www.rfc-editor.org/info/rfc6031},
    author =    {Sean Turner and Russ Housley},
    title =     {{Cryptographic Message Syntax (CMS) Symmetric Key Package Content Type}},
    pagetotal = 29,
    year =      2010,
    month =     dec,
    abstract =  {This document defines the symmetric key format content type. It is transport independent. The Cryptographic Message Syntax (CMS) can be used to digitally sign, digest, authenticate, or encrypt this content type. {[}STANDARDS-TRACK{]}},
}