Cryptology ePrint Archive: BibTeX Citation of Report 2004/035

@misc{cryptoeprint:2004:035,
    author = {Phillip Rogaway and Thomas Shrimpton},
    title = {Cryptographic Hash-Function Basics: Definitions, Implications and Separations for Preimage Resistance, Second-Preimage Resistance, and Collision Resistance},
    howpublished = {Cryptology ePrint Archive, Report 2004/035},
    year = {2004},
    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.