%% You should probably cite rfc7714 instead of this I-D.
@techreport{ietf-avtcore-srtp-aes-gcm-17,
    number =    {draft-ietf-avtcore-srtp-aes-gcm-17},
    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/17/},
    author =    {David McGrew and Kevin Igoe},
    title =     {{AES-GCM Authenticated Encryption in the Secure Real-time Transport Protocol (SRTP)}},
    pagetotal = 48,
    year =      2015,
    month =     jun,
    day =       30,
    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 Secure Real-time Transport Protocol (SRTP).},
}