Cryptology ePrint Archive: BibTeX Citation of Report 2010/040

@misc{cryptoeprint:2010:040,
    author = {Olivier Blazy and Georg Fuchsbauer and Malika Izabachène and Amandine Jambert and Hervé Sibert and Damien Vergnaud},
    title = {Batch Groth-Sahai},
    howpublished = {Cryptology ePrint Archive, Report 2010/040},
    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.