Dynamic AES-128 with Key-Dependent S-box
نویسندگان
چکیده
Advanced Encryption Standard (AES) block cipher system is widely used in cryptographic applications. The main core of AES block cipher is the substitution table or SBox. This S-box is used to provide confusion capability for AES. The aim of this paper is to design dynamic S-box which depends on the secret key. The parameters of the new created SBOXes have characteristics equal to those in the original algorithm AES. This algorithm is suitable to exchange keys on insecure communication channels in order to achieve secure communications. In this paper, a dynamic AES-128 with key dependent S-box is designed and implemented. Also, the quality of the implemented S-boxes is experimentally investigated. Also, the designed AES is compared with original AES in terms of security analysis, and simulation time. Key words-Advanced encryption standard (AES), dynamic S-box, S-box, security analysis
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