Random encryption scheme based on variable S-boxes

Wang Wenhua; Zheng Zhiming

Volume 37 Issue 7

Jul. 2011

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Journal of Beijing University of Aeronautics and Astronautics > 2011 > 37(7): 811-816.

Wang Xinlong, Ma Shan, Wang Haiyonget al. Fast and precise initial alignment of strapdown inertial navigation system on rolling base[J]. Journal of Beijing University of Aeronautics and Astronautics, 2009, 35(1): 91-95. (in Chinese)

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Wang Wenhua, Zheng Zhiming. Random encryption scheme based on variable S-boxes[J]. Journal of Beijing University of Aeronautics and Astronautics, 2011, 37(7): 811-816. (in Chinese)

Citation:

Wang Wenhua, Zheng Zhiming. Random encryption scheme based on variable S-boxes[J]. Journal of Beijing University of Aeronautics and Astronautics, 2011, 37(7): 811-816. (in Chinese)

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Random encryption scheme based on variable S-boxes

School of Mathematics and Systems Science, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

Received Date: 08 Jul 2010
Publish Date: 30 Jul 2011

Abstract

Abstract

How the variable S-boxes would affect the security of the block cipher was studied and a new block cipher using random variable S-boxes was presented. A new encryption scheme based on such block cipher was put forward: the structure of the original encryption algorithm was kept, the S-box was taken as a variable and variable S-box was used instead of the primary one, which could increase the resistance against those known attacks. The security evaluation proves the scheme secure. Furthermore, a discussion on the improvement about the generation of the S-boxes and structure of the algorithms was given.
- cryptography,
- security of data,
- random number generation,
- block cipher,
- cryptanalysis

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