generate my own key

i want to know howa can i create my own key using S box or how to generate my s box values ? i want the code please

[Rik]

Can you provide a bit more context? Just from the description it sounds fairly complicated. If your question is not specific enough, your chances of getting an answer are slim.

[Samaa Yasser]

i want to encrypt an image using choatic system ,so i want to know how to create my secret key for getting my own one using the chaotic sequence or sbustitution box for encryption ,, i want help please

[Rik]

I suggest you start with a Google search.

Note that discussions about cryptography need to be very limited. The reason for this is that most encryption is classified as a weapon, and publishing information on the internet is effectively exporting that information, which makes discussing cryptography on a US hosted server illegal weapons export.

At least that is my understanding.