%% You should probably cite draft-trammell-perpass-ppa-01 instead of this revision.
@techreport{trammell-perpass-ppa-00,
    number =    {draft-trammell-perpass-ppa-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-trammell-perpass-ppa/00/},
    author =    {Brian Trammell},
    title =     {{The Perfect Passive Adversary: A Threat Model for the Evaluation of Protocols under Pervasive Surveillance}},
    pagetotal = 7,
    year =      2013,
    month =     sep,
    day =       4,
    abstract =  {This document elaborates a threat model for the Perfect Passive Adversary (PPA): an adversary with an interest in eavesdropping that can passively observe network traffic at every layer at every point in the network between the endpoints. It is intended to demonstrate to protocol designers and implementors the observability and inferability of information and metainformation transported over their respective protocols, to assist in the evaluation of the performance of these protocols and the effectiveness of their protection mechanisms under pervasive passive surveillance.},
}