Cryptology ePrint Archive: BibTeX Citation of Report 2010/086

@misc{cryptoeprint:2010:086,
    author = {Zvika Brakerski and Yael Tauman Kalai},
    title = {A Framework for Efficient Signatures, Ring Signatures and Identity Based Encryption in the Standard Model},
    howpublished = {Cryptology ePrint Archive, Report 2010/086},
    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.