Cryptology ePrint Archive: BibTeX Citation of Report 2009/040

@misc{cryptoeprint:2009:040,
    author = {Yusuke Naito and Kazuki Yoneyama and Lei Wang and Kazuo Ohta},
    title = {How to Prove the Security of Practical Cryptosystems with Merkle-Damg{\aa}rd Hashing by Adopting Indifferentiability},
    howpublished = {Cryptology ePrint Archive, Report 2009/040},
    year = {2009},
    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.