Cryptology ePrint Archive: BibTeX Citation of Report 2014/157

@misc{cryptoeprint:2014:157,
    author = {Tetsu Iwata and Kazuhiko Minematsu and Jian Guo and Sumio Morioka},
    title = {CLOC: Authenticated Encryption for Short Input},
    howpublished = {Cryptology ePrint Archive, Report 2014/157},
    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.