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Journal of Applied Sciences
  Year: 2015 | Volume: 15 | Issue: 5 | Page No.: 728-740
DOI: 10.3923/jas.2015.728.740
 
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Evaluation of a Dynamic 3D S-Box Based on Cylindrical Coordinate System for Blowfish Algorithm

Ashwak Alabaichi and Mohammed S. Mechee

Abstract:
In order to measure the degree of security of RAF algorithm, some cryptographic tests must be applied such as randomness test, avalanche criteria, correlation coefficient and criteria of S-Box. In this study, we analyze the security of RAF. The security analysis is divided into two phases. The first phase investigates the output of the entire RAF, including the avalanche text and the correlation coefficient. The second phase investigates the quality of the dynamic 3D S-Box generated by the RAF by using the avalanche criterion (AVAL), the Strict Avalanche Criterion (SAC) and the Bit Independence Criterion (BIC). In addition, RAF algorithm is compared with the Blowfish Algorithm (BA). The avalanche text findings show that both algorithms produced satisfactory results on the second round. The correlation coefficient for RAF showed better non-linearity than BA. The S-Box analyses show that the dynamic 3D S-Box in the RAF is equipped with more security features than dynamic S-boxes in BA. C++ is used in the implementation of both algorithms. MATLAB computing software is used to implement the properties (AVAL, SAC and BIC) as well as the avalanche text and the correlation coefficient.
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How to cite this article:

Ashwak Alabaichi and Mohammed S. Mechee, 2015. Evaluation of a Dynamic 3D S-Box Based on Cylindrical Coordinate System for Blowfish Algorithm. Journal of Applied Sciences, 15: 728-740.

DOI: 10.3923/jas.2015.728.740

URL: https://scialert.net/abstract/?doi=jas.2015.728.740

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