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  • C Offline
    C Offline
    Cryptogrpahy
    wrote on last edited by
    #1

    How can i make good s-box easily (against linear and differential attacks)? If i used prepaid one that may belongs to someone or standard ciphers then it would be plagiarism right? So i need to make own s-box (8 bit input, 8 bit output (16x16)). Please Please suggest me any way to decide it. Thank you.

    M M 2 Replies Last reply
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    • C Cryptogrpahy

      How can i make good s-box easily (against linear and differential attacks)? If i used prepaid one that may belongs to someone or standard ciphers then it would be plagiarism right? So i need to make own s-box (8 bit input, 8 bit output (16x16)). Please Please suggest me any way to decide it. Thank you.

      M Offline
      M Offline
      Member 96
      wrote on last edited by
      #2

      What's an s-box?


      "The pursuit of excellence is less profitable than the pursuit of bigness, but it can be more satisfying." - David Ogilvy

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      • M Member 96

        What's an s-box?


        "The pursuit of excellence is less profitable than the pursuit of bigness, but it can be more satisfying." - David Ogilvy

        C Offline
        C Offline
        Cryptogrpahy
        wrote on last edited by
        #3

        The s-box in cryptography is named like Substitution box (a.k.a substitution table).

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        • C Cryptogrpahy

          The s-box in cryptography is named like Substitution box (a.k.a substitution table).

          M Offline
          M Offline
          Member 96
          wrote on last edited by
          #4

          Ahh..out of my area of expertise then.


          "The pursuit of excellence is less profitable than the pursuit of bigness, but it can be more satisfying." - David Ogilvy

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          • C Cryptogrpahy

            How can i make good s-box easily (against linear and differential attacks)? If i used prepaid one that may belongs to someone or standard ciphers then it would be plagiarism right? So i need to make own s-box (8 bit input, 8 bit output (16x16)). Please Please suggest me any way to decide it. Thank you.

            M Offline
            M Offline
            Mark Churchill
            wrote on last edited by
            #5

            Use standard ciphers. Fiddling with your own substitutions might accidently introduce weakness. The framework provides a whole bunch of CSPs you can use royalty free anyway - theres very little reason to implement your own cipher, and lots of reasons not to.

            Mark Churchill Director Dunn & Churchill Free Download:
            Diamond Binding: The simple, powerful, reliable, and effective data layer toolkit for Visual Studio.

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