Cryptology ePrint Archive: BibTeX Citation of Report 2013/641

@misc{cryptoeprint:2013:641,
    author = {Nir Bitansky and Ran Canetti and Omer Paneth and Alon Rosen },
    title = {Indistinguishability Obfuscation vs. Auxiliary-Input Extractable Functions: One Must Fall},
    howpublished = {Cryptology ePrint Archive, Report 2013/641},
    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.