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I Have used Sage command

sage: S = SBox(14,4,13,1,2,15,11,8,3,10,6,12,5,9,0,7) sage: S.difference_distribution_table() the output is [16 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0] [ 0 0 0 2 0 0 0 2 0 2 4 0 4 2 0 0] [ 0 0 0 2 0 6 2 2 0 2 0 0 0 0 2 0] [ 0 0 2 0 2 0 0 0 0 4 2 0 2 0 0 4] [ 0 0 0 2 0 0 6 0 0 2 0 4 2 0 0 0] [ 0 4 0 0 0 2 2 0 0 0 4 0 2 0 0 2] [ 0 0 0 4 0 4 0 0 0 0 0 0 2 2 2 2] [ 0 0 2 2 2 0 2 0 0 2 2 0 0 0 0 4] [ 0 0 0 0 0 0 2 2 0 0 0 4 0 4 2 2] [ 0 2 0 0 2 0 0 4 2 0 2 2 2 0 0 0] [ 0 2 2 0 0 0 0 0 6 0 0 2 0 0 4 0] [ 0 0 8 0 0 2 0 2 0 0 0 0 0 2 0 2] [ 0 2 0 0 2 2 2 0 0 0 0 2 0 6 0 0] [ 0 4 0 0 0 0 0 4 2 0 2 0 2 0 2 0] [ 0 0 2 4 2 0 0 0 6 0 0 0 0 0 2 0] [ 0 2 0 0 6 0 0 0 0 4 0 2 0 0 2 0]

This output is produced from one first line of S box. How to find the difference table of the whole S box

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    $\begingroup$ The module only works square sboxes. You can benefit this answers or ask at ask.sagemath.org $\endgroup$ Commented May 2, 2021 at 20:24
  • $\begingroup$ I wanted to know the method for rectangular S boxes like DES. Has anyone gone through this type of problem before. Thank in advance $\endgroup$ Commented May 3, 2021 at 4:18

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