Cryptology ePrint Archive: BibTeX Citation of Report 1996/016

@misc{cryptoeprint:1996:016,
    author = {Oded Goldreich, Shafi Goldwasser, and Shai Halevi},
    title = {Public-Key Cryptosystems from Lattice Reduction Problems},
    howpublished = {Cryptology ePrint Archive, Report 1996/016},
    year = {1996},
    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.