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Security analysis of blowfish algorithm


Al-Abiachi, Ashwak M. and Ahmad, Faudziah and Mahmod, Ramlan (2013) Security analysis of blowfish algorithm. In: Second International Conference on Informatics and Applications (ICIA), 23-25 Sept. 2013, Lodz, Poland.

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Abstract

Blowfish algorithm (BA) is a symmetric block cipher with a 64-bit block size and variable key lengths from 32 bits up to a maximum of 448 bits.In order to measure the degree of security of blowfish algorithm, some cryptographic tests must be applied such as randomness test, avalanche criteria and correlation coefficient.In this paper we attempt to analyze the security of blowfish using avalanche criteria and correlation coefficient.We analyzed the randomness of the Blowfish output in an earlier paper titled “Randomness Analysis on Blowfish Block Cipher using ECB and CBC Modes”. The results obtained from the analysis of correlation coefficient showed that Blowfish algorithm gives a good nonlinear relation between plaintext and ciphertext while the results of avalanche effect indicate that the algorithm presents good avalanche effect from the second round.C++ is used in the implementation of the blowfish algorithm; MATLAB programming (Mathworks, R., 2012a) is used in the implementation of avalanche effect and correlation coefficient.

Item Type: Conference or Workshop Item (Paper)
Additional Information: Print ISBN: 978-1-4673-5255-0
Uncontrolled Keywords: algorithm, avalanche effect, Correlation coefficient.
Subjects: Q Science > QA Mathematics > QA76 Computer software
Divisions: College of Arts and Sciences
Depositing User: Dr. Faudziah Ahmad
Date Deposited: 26 Feb 2014 01:39
Last Modified: 26 Feb 2014 01:39
URI: http://repo.uum.edu.my/id/eprint/9496

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