Some New Observations on the SMS4 Block Cipher in the Chinese WAPI Standard.

Wentao Zhang Wenling Wu Dengguo Feng Bozhan Su Some New Observations on the SMS4 Block Cipher in the Chinese WAPI Standard. 324-335 2009 ISPEC http://dx.doi.org/10.1007/978-3-642-00843-6_28 conf/ispec/2009 db/conf/ispec/ispec2009.html#ZhangWFS09