%% You should probably cite rfc7516 instead of this I-D.
@techreport{ietf-jose-json-web-encryption-09,
    number =    {draft-ietf-jose-json-web-encryption-09},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-ietf-jose-json-web-encryption/09/},
    author =    {Michael B. Jones and Eric Rescorla and Joe Hildebrand},
    title =     {{JSON Web Encryption (JWE)}},
    pagetotal = 54,
    year =      2013,
    month =     apr,
    day =       24,
    abstract =  {JSON Web Encryption (JWE) is a means of representing encrypted content using JavaScript Object Notation (JSON) data structures. Cryptographic algorithms and identifiers for use with this specification are described in the separate JSON Web Algorithms (JWA) specification. Related digital signature and MAC capabilities are described in the separate JSON Web Signature (JWS) specification.},
}