Cryptology ePrint Archive: BibTeX Citation of Report 2007/242

@misc{cryptoeprint:2007:242,
    author = {Khoongming Khoo, Guanhan Chew, Guang Gong and Hian-Kiat Lee},
    title = {Time-Memory-Data Trade-off Attack on Stream Ciphers based on Maiorana-McFarland Functions},
    howpublished = {Cryptology ePrint Archive, Report 2007/242},
    year = {2007},
    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.