Cryptology ePrint Archive: BibTeX Citation of Report 2011/181

@misc{cryptoeprint:2011:181,
    author = {Santosh Ghosh, Debdeep Mukhopadhyay, and Dipanwita Roy Chowdhury},
    title = {Security of Prime Field Pairing Cryptoprocessor Against Differential Power Attack},
    howpublished = {Cryptology ePrint Archive, Report 2011/181},
    year = {2011},
    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.