%% You should probably cite draft-ietf-avtcore-srtp-aes-gcm instead of this I-D.
@techreport{ietf-avt-srtp-aes-gcm-02,
    number =    {draft-ietf-avt-srtp-aes-gcm-02},
    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-avt-srtp-aes-gcm/02/},
    author =    {David McGrew and Kevin Igoe},
    title =     {{AES-GCM and AES-CCM Authenticated Encryption in Secure RTP (SRTP)}},
    pagetotal = 19,
    year =      2011,
    month =     oct,
    day =       31,
    abstract =  {This document defines how AES-GCM, AES-CCM, and other Authenticated Encryption with Associated Data (AEAD) algorithms, can be used to provide confidentiality and data authentication mechanisms in the SRTP protocol.},
}