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I try to generate other S_BOX for AES but I don't realize how to choose additive constants for S_BOX from decryption if for encryption it is 0x63 why is 0X05 used for decryption?

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    $\begingroup$ If you're looking to design an AES-like cipher, well, the fact that you need to ask this question would appear to indicate that you're seriously out of your depth... $\endgroup$ – poncho Mar 24 at 14:11
  • $\begingroup$ it is 0x05 for decryption BECAUSE 0x63 is used for encryption, as that is the only value that satisfies the variable in the inverse equation $\endgroup$ – Richie Frame Mar 24 at 21:41

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