KAMIES: Security Optimization of KASUMI Algorithm by Increasing Diffusion Level
Muhammad Salman, Rizki Yugitama, Amiruddin Amiruddin, Riri Fitri Sari · International Journal of Security and Its Applications · 2018
In this paper we present KAMIES, a variation of KASUMI algorithm we implemented by applying the F function of MISTY1 and S-Box of AES. To compare the security level of KASUMI and KAMIES we have conducted some testing on two components i.e. F functions which consists of FI, FL and FO; and S-Boxes i.e. S7 and S9 of KASUMI and S8 of AES. Methods used for testing the F function include Bit Independence Criterion (BIC) and Strict Avalanche Criterion (SAC), whereas methods for testing the S-Boxes include Avalanche Criterion (AC), SAC, BIC, XOR Table, Linear Approximation Table (LAT) and Nonlinearity.The results obtained from this study showed that the application of F Function of MISTY1 and S-Box of AES has an influence on the increase of the security level of KASUMI algorithm.This is based on the results of SAC and AWD testing on KASUMI and KAMIES algorithm.The result showed that KAMIES algorithm has a better diffusion level than KASUMI algorithm.Thus, KAMIES algorithm is more secure than KASUMI algorithm.