Cryptology ePrint Archive: BibTeX Citation of Report 2009/581

@misc{cryptoeprint:2009:581,
    author = {Dhiman Saha and Debdeep Mukhopadhyay and Dipanwita RoyChowdhury},
    title = {A Diagonal Fault Attack on the Advanced Encryption Standard},
    howpublished = {Cryptology ePrint Archive, Report 2009/581},
    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.