Superiority of Blowfish Algorithm in Wireless Networks

Abstract

Encryption algorithm plays a crucial role in information security which guarantees the recent growing internet and network applications. They are used to secure the data in wireless networks against malicious attacks but securing data also consumes resources such as C.P.U time, Memory, battery power, encryption time etc. In this paper, we evaluated the performance of four symmetric key encryption algorithms; AES, DES, 3DES and Blowfish which commonly used for data encryption in terms of encryption time, decryption time & throughput. In this research, we evaluated encryption time, decryption time and throughput for all four encryption algorithms in Visual Basic’s environment using large size text data (.doc). Experimental results show that Blowfish encryption algorithm may be more suitable for wireless networks. Study reveals that Blowfish gives better performance than AES, DES and 3DES in terms of encryption time, decryption time & throughput.