Journal of Computer Science

Comparative Study of Performance in Cryptography Algorithms (Blowfish and Skipjack)

Ali Ahmad Milad, Hjh Zaiton Muda, Zul Azri Bin Muhamad Noh and Mustafa Almahdi Algaet

DOI : 10.3844/jcssp.2012.1191.1197

Journal of Computer Science

Volume 8, Issue 7

Pages 1191-1197

Abstract

Problem statement: The main goal guiding the design of any encryption algorithm needs to be secured against unauthorized attacks. For all applied applications, performance and the cost of implementations are also important concerns. A data encryption algorithm would not be of much use if it is secure enough but slow in performance because it is a common repetition to embed encryption algorithms in other applications such as e-commerce, banking and online transaction processing applications. Inserting of encryption algorithms in other applications also prevents a hardware implementation and is thus a major cause of tainted overall performance of the system. Approach: In this study, the performance of the two of the popular secret key encryption algorithms (Blowfish and Skipjack) was compared. Results: Blowfish and Skipjack, had been implemented and their performance was compared by encrypting input files of varying contents and sizes. The algorithms had been implemented in a uniform language C#, using their standard specifications to allow a fair comparison of execution speeds. Conclusion: The performance results have been summarized and a conclusion has been presented. Based on the experiments, we can conclude that the Blowfish is the best performing algorithm for implementation.

Copyright

© 2012 Ali Ahmad Milad, Hjh Zaiton Muda, Zul Azri Bin Muhamad Noh and Mustafa Almahdi Algaet. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.