The secure DAES design for embedded system application

Authors:
Ming-Haw Jing;Jian-Hong Chen;Zih-Heng Chen;Yaotsu Chang
Affiliations:
Department of Information Engineering, I-Shou University, Ta-Hsu, Kaohsiung, Taiwan;Department of Information Engineering, I-Shou University, Ta-Hsu, Kaohsiung, Taiwan;Department of Information Engineering, I-Shou University, Ta-Hsu, Kaohsiung, Taiwan;Department of Information Engineering, I-Shou University, Ta-Hsu, Kaohsiung, Taiwan and Department of Applied Mathematics, I-Shou University, Ta-Hsu, Kaohsiung, Taiwan
Venue:
EUC'07 Proceedings of the 2007 conference on Emerging direction in embedded and ubiquitous computing
Year:
2007

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Abstract

Recently, Advanced Encryption Standard (AES) has become one of the major symmetric encryption algorithms used in the embedded system applications. Many researches extended use of the algorithm of AES for system security. In this paper, we propose a diversified AES (DAES) to create more variations. In the architecture of the DAES, the diversity results from the modification of the parameters of DAES. In the process of system design, the additional parameters may not only cause operational complexity but also influence the security. In this article, a method to measure the security of DAES is also provided. We propose a strategy to optimize the design of the DAES with higher security from the scope of S-box via repeating property and MixColumn polynomials via branch number. During the analysis procedure, the size of embedded program may also be reduced.