Alamsyah, Agus Bejo, Teguh Bharata Adji
A strong S-box construction will determine the level of data security during the data encryption and decryption processes. One of the methods for S-boxes construction is using algebraic technique. In algebraic technique, S-box construction is built based on the selected irreducible polynomial. In this paper, the construction of S-boxes will be discussed. The constructed S-boxes are S-box1, S-box2, and S-box3 that use three irreducible polynomials i.e. pl(x)=x8+x4+x3+x2+1,p2(x) =x8+x5+x3+x+1, and p3(x)=x8+x5+x3+x2+ respectively. The selection of the irreducible polynomials is based on the computational speed rating of the polynomials. The resulting S-boxes will be tested using strict avalanche criterion, showing that S-box3 is the best S-box with a value of 0.49927compared to S-box1, S-box3, and S-boxes from previous researchers. © 2018 IEEE.
Department of Electrical Engineering and Information Technology, Universitas Gadjah Mada, Indonesia; Department of Computer Science, Universitas Negeri Semarang, Indonesia
