Cryptology ePrint Archive: BibTeX Citation of Report 2012/435

@misc{cryptoeprint:2012:435,
    author = {Yevgeniy Dodis and Adriana Lopez-Alt and Ilya Mironov and Salil Vadhan},
    title = {Differential Privacy with Imperfect Randomness},
    howpublished = {Cryptology ePrint Archive, Report 2012/435},
    year = {2012},
    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.