Cryptology ePrint Archive: BibTeX Citation of Report 2013/623

@misc{cryptoeprint:2013:623,
    author = {Yossi Gilad and Amir Herzberg and Haya Shulman},
    title = {Off-Path Hacking: The Illusion of Challenge-Response Authentication},
    howpublished = {Cryptology ePrint Archive, Report 2013/623},
    year = {2013},
    note = {\url{http://eprint.iacr.org/}},
}

You will need the url.sty package (comes with most LaTeX installations) for the last line. Otherwise, remove the \url command.