Cryptology ePrint Archive: BibTeX Citation of Report 2010/659

@misc{cryptoeprint:2010:659,
    author = {Mark Manulis and Bertram Poettering},
    title = {Practical Affiliation-Hiding Authentication from Improved Polynomial Interpolation},
    howpublished = {Cryptology ePrint Archive, Report 2010/659},
    year = {2010},
    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.