%% You should probably cite draft-ietf-dprive-edns0-padding instead of this I-D.
@techreport{mayrhofer-edns0-padding-00,
    number =    {draft-mayrhofer-edns0-padding-00},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-mayrhofer-edns0-padding/00/},
    author =    {Alexander Mayrhofer},
    title =     {{The EDNS(0) Padding Option}},
    pagetotal = 4,
    year =      2015,
    month =     jul,
    day =       23,
    abstract =  {This document specifies the EDNS0 'Padding' option, allowing DNS clients and servers to pad request and response packets by a variable number of bytes. This is to be used together with encrypted DNS transports in order to impede message-size based correlation attacks on the confidentiality of messages.},
}