SM2ǩ
  ԭʼָժҪ
  1.1. ժҪֵ32ֽڣȡժҪǰ32ֽǩ
  1.2. ժҪֵ32ֽڣֱӶժҪֵǩ
  1.3. ժҪֵС32ֽڣ油0ȻٶԽǩ
  2. ǩΪ64ֽڣǰ32ֽΪr32ֽΪs
  
SM2ܹ
  1. Ϊ32ֽڣ32ֽڵĺ油0Ȼ
  2. ݲܰansii 00û⣬ȥpadding
  
SM1Чʣ
  1. bcԳṹSM1ʵЧʱȽϵͣڴڷ飨16ֽڵݣֳÿһ