Statistical analysis of S-Box in Rijndael-AES algorithm and formulation of an enhanced S-Box
The internet is widely used to support services ranging from education, medicine, entertainment to e-commerce. Cryptography helps to safeguard this transmitted information using authentication, digital signatures and encryption algorithms. In this paper we focus on AES, a symmetric block cipher algo...
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| Main Authors: | , |
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| Format: | Article |
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Mirlabs, USA
2014
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| Subjects: | |
| Online Access: | http://eprints.utm.my/id/eprint/59950/ https://www.mirlabs.net/jias/secured/Volume9-Issue4/Paper23.pdf |
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| Institution: | Universiti Teknologi Malaysia |
| Summary: | The internet is widely used to support services ranging from education, medicine, entertainment to e-commerce. Cryptography helps to safeguard this transmitted information using authentication, digital signatures and encryption algorithms. In this paper we focus on AES, a symmetric block cipher algorithm which implements the Rijndael algorithm. We present a statistical analysis of the Rijndael-AES S-Box so as to evaluate the weaknesses present in the S-Box. These tests evaluate susceptibility of the AES S-Box to algebraic and statistical attacks. Using the obtained results, a technique of formulating a more non-linear S-Box is suggested. This technique uses the incursive congruential method, which produces highly non-linear output with a lower degree of correlation than the current AES S-Box. |
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