Cryptology ePrint Archive: BibTeX Citation of Report 2006/163

@misc{cryptoeprint:2006:163,
    author = {Gregory V. Bard},
    title = {Achieving a log(n) Speed Up for Boolean Matrix Operations and Calculating the Complexity of the Dense Linear Algebra step of Algebraic Stream Cipher Attacks and of Integer Factorization Methods},
    howpublished = {Cryptology ePrint Archive, Report 2006/163},
    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.