Cryptology ePrint Archive: BibTeX Citation of Report 2006/018

@misc{cryptoeprint:2006:018,
    author = {Deepak Kumar Dalai and Kishan Chand Gupta and Subhamoy Maitra},
    title = {Notion of Algebraic Immunity and Its evaluation Related to Fast Algebraic Attacks},
    howpublished = {Cryptology ePrint Archive, Report 2006/018},
    year = {2006},
    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.