@misc{cryptoeprint:2009:256,
    author = {Zhiqiang Liu and Dawu Gu and Jing Zhang},
    title = {Multiple Linear Cryptanalysis of Reduced-Round SMS4 Block Cipher},
    howpublished = {Cryptology ePrint Archive, Report 2009/256},
    year = {2009},
    url = {http://eprint.iacr.org/2009/256},
}