Cryptology ePrint Archive: BibTeX Citation of Report 2009/576

@misc{cryptoeprint:2009:576,
    author = {Vadim Lyubashevsky and Adriana Palacio and Gil Segev},
    title = {Public-Key Cryptographic Primitives Provably as Secure as Subset Sum},
    howpublished = {Cryptology ePrint Archive, Report 2009/576},
    year = {2009},
    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.