@misc{cryptoeprint:2012:141,
    author = {Dmitry Khovratovich},
    title = {Bicliques for permutations: collision and preimage attacks in stronger settings},
    howpublished = {Cryptology ePrint Archive, Report 2012/141},
    year = {2012},
    url = {http://eprint.iacr.org/2012/141},
}