As a way of generating substitution boxes, we briefly point out the cryptographic weakness of the exponential functions derived from such permutation.

 
  • 簡(jiǎn)要給出了由冪置換派生出的冪函數的密碼局限性;針對冪置換,提出了兩個(gè)密碼安全指標:不動(dòng)點(diǎn)和循環(huán)結構;
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