Cryptology ePrint Archive: BibTeX Citation of Report 2006/221

@misc{cryptoeprint:2006:221,
    author = {Phillip Rogaway and Thomas Shrimpton},
    title = {Deterministic Authenticated-Encryption: A Provable-Security Treatment of the Key-Wrap Problem},
    howpublished = {Cryptology ePrint Archive, Report 2006/221},
    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.