how is an s-box value of AES can be modified? how is it...

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Question by jayashree
Submitted on 3/15/2004
Related FAQ: Cryptography FAQ (01/10: Overview)
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how is an s-box value of AES can be modified? how is it done?

Answer by Marcos Juarez
Submitted on 6/27/2004
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The s-boxes (or substitution boxes) of most cryptographic algorithms, including AES (aka Rijndael), have been chosen for their security strengths and lack of statistiscal bias. You would need a lot of math and crypto theory to be able to change the values, and come up with a better S-box. Better to leave them alone.

Answer by Tashfir
Submitted on 5/13/2007
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Its not a reason to answer like this... Have you ever asked your self, What if these S-Boxes have a back door ? No need to say more

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