Cryptology ePrint Archive: BibTeX Citation of Report 2015/602

@misc{cryptoeprint:2015:602,
    author = {Abhishek Chakraborty and Bodhisatwa Mazumdar and Debdeep Mukhopadhay },
    title = {Combined Side-Channel and Fault Analysis Attack on Protected Grain Family of Stream Ciphers},
    howpublished = {Cryptology ePrint Archive, Report 2015/602},
    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.