Cryptology ePrint Archive: BibTeX Citation of Report 2013/476

@misc{cryptoeprint:2013:476,
    author = {Sourav Sen Gupta and Subhamoy Maitra and Willi Meier and Goutam Paul and Santanu Sarkar},
    title = {Dependence in IV-related bytes of RC4 key enhances vulnerabilities in WPA},
    howpublished = {Cryptology ePrint Archive, Report 2013/476},
    year = {2013},
    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.