@misc{cryptoeprint:2009:066,
    author = {Jooyoung Lee and Je Hong Park},
    title = {Adaptive Preimage Resistance and Permutation-based Hash Functions},
    howpublished = {Cryptology ePrint Archive, Report 2009/066},
    year = {2009},
    url = {http://eprint.iacr.org/2009/066},
}