@misc{cryptoeprint:2005:281,
    author = {John Kelsey and Tadayoshi Kohno},
    title = {Herding Hash Functions and the Nostradamus Attack},
    howpublished = {Cryptology ePrint Archive, Report 2005/281},
    year = {2005},
    url = {http://eprint.iacr.org/2005/281},
}