@misc{cryptoeprint:2006:187,
    author = {Jongsung Kim and Alex Biryukov and Bart Preneel and Seokhie Hong},
    title = {On the Security of HMAC and NMAC Based on HAVAL, MD4, MD5, SHA-0 and SHA-1},
    howpublished = {Cryptology ePrint Archive, Report 2006/187},
    year = {2006},
    url = {http://eprint.iacr.org/2006/187},
}