Cryptology ePrint Archive: BibTeX Citation of Report 2000/025

@misc{cryptoeprint:2000:025,
    author = {Mihir Bellare and Chanathip Namprempre},
    title = {Authenticated Encryption: Relations among notions and analysis of the generic composition paradigm},
    howpublished = {Cryptology ePrint Archive, Report 2000/025},
    year = {2000},
    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.