%% You should probably cite draft-ietf-tls-extractor instead of this I-D.
@techreport{rescorla-tls-extractor-01,
    number =    {draft-rescorla-tls-extractor-01},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-rescorla-tls-extractor/01/},
    author =    {Eric Rescorla},
    title =     {{Keying Material Extractors for Transport Layer Security (TLS)}},
    pagetotal = 6,
    year =      2007,
    month =     nov,
    day =       19,
    abstract =  {A number of protocols wish to leverage Transport Layer Security (TLS) to perform key establishment but then use some of the keying material for their own purposes. This document describes a general mechanism for allowing that.},
}