%% You should probably cite rfc7714 instead of this I-D.
@techreport{ietf-avtcore-srtp-aes-gcm-15,
    number =    {draft-ietf-avtcore-srtp-aes-gcm-15},
    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-avtcore-srtp-aes-gcm/15/},
    author =    {David McGrew and Kevin Igoe},
    title =     {{AES-GCM Authenticated Encryption in Secure RTP (SRTP)}},
    pagetotal = 25,
    year =      2015,
    month =     apr,
    day =       14,
    abstract =  {This document defines how the AES-GCM Authenticated Encryption with Associated Data family of algorithms can be used to provide confidentiality and data authentication in the SRTP protocol. Note: this is an intermediate draft, awaiting the inclusion of test vectors. Care is being taken to ensure these test vectors will be correct, always a desirable property.},
}