Cryptology ePrint Archive: BibTeX Citation of Report 2007/197

@misc{cryptoeprint:2007:197,
    author = {Mihir Bellare and Alexandra Boldyreva and Lars Knudsen and Chanathip Namprempre},
    title = {On-Line Ciphers and the Hash-CBC Constructions},
    howpublished = {Cryptology ePrint Archive, Report 2007/197},
    year = {2007},
    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.