Cryptology ePrint Archive: BibTeX Citation of Report 2014/283

@misc{cryptoeprint:2014:283,
    author = {Nicolas Gama  and Malika Izabachene and Phong Q. Nguyen and Xiang Xie},
    title = {Structural Lattice Reduction: Generalized Worst-Case to Average-Case Reductions and Homomorphic Cryptosystems},
    howpublished = {Cryptology ePrint Archive, Report 2014/283},
    year = {2014},
    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.