Cryptology ePrint Archive: BibTeX Citation of Report 2015/932

@misc{cryptoeprint:2015:932,
    author = {Sikhar Patranabis and Debapriya Basu Roy and Debdeep Mukhopadhyay},
    title = {Using Tweaks To Design Fault Resistant Ciphers},
    howpublished = {Cryptology ePrint Archive, Report 2015/932},
    year = {2015},
    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.