M A Kabi; K A Sayeed; M A Matin; T Mehenaz; M Kamruzzaman

Triple Layered Encryption Algorithm for IEEE 802.11 WLANs in E-Government Services

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Author(s)

M A Kabi ^1,* K A Sayeed ¹ M A Matin ² T Mehenaz ³ M Kamruzzaman ⁴

1. Department of Electrical Engineering and Computer Science, North South University Dhaka, Bangladesh

2. Institut Teknologi Brunei, Bandar Seri Begawan, Brunei Darussalam

3. Dept. of Computer Science and Engineering Bangladesh University of Engineering and Technology (BUET), Bangladesh

4. Dept. of Computer Science and Engineering Chittagong University of Engineering and Technology (CUET), Bangladesh

* Corresponding author.

DOI: https://doi.org/10.5815/ijcnis.2013.11.05

Received: 9 Oct. 2012 / Revised: 19 Feb. 2013 / Accepted: 10 May 2013 / Published: 8 Sep. 2013

Index Terms

IEEE 802.11 WLAN, Network security, WEP protocol, RC4, symmetric encryption

Abstract

Wireless local area network (WLAN) can provide e-government services at all levels, from local to national as the WLAN enabled devices have the flexibility to move from one place to another within offices while maintaining connectivity with the network. However, government organizations are subject to strict security policies and other compliance requirements. Therefore, WLAN must ensure the safeguard the privacy of individual data with the strictest levels of security. The 802.11 MAC specifications describe an encryption protocol called Wired Equivalent Privacy (WEP) which is used to protect wireless communications from eavesdropping. It is also capable of preventing unauthorized access. However, the WEP protocol often fails to accomplish its security goal due to the weakness in RC4 and the way it is applied in WEP protocol. This paper focuses the improvement of existing WEP protocol using the varying secret key for each transmission. This will remove the insecurities that currently make the RC4 unattractive for secured networking and this will add further cryptographic strength if applied to Rijndael algorithm. Our result shows that the proposed algorithm is more suitable for small and medium packets and AES for large packets.

Cite This Paper

M A Kabir, K A Sayeed, M A Matin, T Mehenaz, M Kamruzzaman, "Triple Layered Encryption Algorithm for IEEE 802.11 WLANs in E-Government Services", International Journal of Computer Network and Information Security(IJCNIS), vol.5, no.11, pp.36-41, 2013. DOI:10.5815/ijcnis.2013.11.05

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International Journal of Computer Network and Information Security (IJCNIS)