@misc{cryptoeprint:2011:624,
    author = {Itai Dinur and Orr Dunkelman and Adi Shamir},
    title = {New attacks on Keccak-224 and Keccak-256},
    howpublished = {Cryptology ePrint Archive, Report 2011/624},
    year = {2011},
    url = {http://eprint.iacr.org/2011/624},
}