Cryptology ePrint Archive: BibTeX Citation of Report 2012/446

@misc{cryptoeprint:2012:446,
    author = {Sk Subidh Ali , Debdeep Mukhopadhyay, and Michael Tunstall},
    title = {Differential Fault Analysis of AES: Towards Reaching its Limits},
    howpublished = {Cryptology ePrint Archive, Report 2012/446},
    year = {2012},
    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.