East Asian mathematical journal

The Youngnam Mathematical Society (영남수학회)
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ON THE MODIFICATION OF FINITE FIELD BASED S-BOX

  • Kim, Jun Kyo (Department of Mathematics, Pusan National University)
  • Received : 2020.10.30
  • Accepted : 2020.11.04
  • Published : 2021.01.31
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Abstract

In modern block ciphers, S-box plays a very important role in the secrets of symmetric encryption algorithms. Many popular block ciphers have adopted various S-Boxes to design better S-Boxes. Among the researches, Jin et al. proposed a simple scheme to create a new S-box from Rijndael S-box. Only one of the new S-boxes for 29 is a bijection with a better algebraic representation than the original. Therefore, they asked a few questions. In this paper, we answer the following question : When the resulting S-box is bijection?

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References

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