Research on the avalanche property of the Camellia S-box

The Camellia algorithm has four S boxes called as S<inf>1</inf>, S<inf>2</inf>, S<inf>3</inf> and S<inf>4</inf>. Because the S<inf>1</inf>-box is the core of other S boxes, the avalanche property of S boxes can be studied through testing the avalanche property of S<inf>1</inf>-box. The test results show that the Camellia S-box basically meet the strict avalanche criterion.