@misc{cryptoeprint:2011:551,
    author = {Shengbao Wu and Mingsheng Wang},
    title = {Security Evaluation against Differential Cryptanalysis for Block Cipher Structures},
    howpublished = {Cryptology ePrint Archive, Report 2011/551},
    year = {2011},
    url = {http://eprint.iacr.org/2011/551},
}