Cryptology ePrint Archive: BibTeX Citation of Report 2006/319

@misc{cryptoeprint:2006:319,
    author = {Scott Contini and Yiqun Lisa Yin},
    title = {Forgery and Partial Key-Recovery Attacks on HMAC and NMAC Using Hash Collisions},
    howpublished = {Cryptology ePrint Archive, Report 2006/319},
    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.