Cryptology ePrint Archive: BibTeX Citation of Report 2014/646

@misc{cryptoeprint:2014:646,
    author = {Donald Donglong Chen and Nele Mentens and Frederik Vercauteren and Sujoy Sinha Roy and Ray C.C. Cheung and Derek Pao and Ingrid Verbauwhede},
    title = {High-speed Polynomial Multiplication Architecture for Ring-LWE and SHE Cryptosystems},
    howpublished = {Cryptology ePrint Archive, Report 2014/646},
    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.