@misc{rfc7435,
    series =    {Request for Comments},
    number =    7435,
    howpublished =  {RFC 7435},
    publisher = {RFC Editor},
    doi =       {10.17487/RFC7435},
    url =       {https://www.rfc-editor.org/info/rfc7435},
    author =    {Viktor Dukhovni},
    title =     {{Opportunistic Security: Some Protection Most of the Time}},
    pagetotal = 11,
    year =      2014,
    month =     dec,
    abstract =  {This document defines the concept "Opportunistic Security" in the context of communications protocols. Protocol designs based on Opportunistic Security use encryption even when authentication is not available, and use authentication when possible, thereby removing barriers to the widespread use of encryption on the Internet.},
}