The International Arab Journal of Information Technology (IAJIT)

Lightweight Anti-Censorship Online Network for

   The Onion Router (TOR) online anonymity system is a network of volunteer’s nodes that allows Internet users to be anonymous through consecutive encryption tunnels. N odes are selected according to estimated bandwidth (bnd) values announced by the nodes themselves. Some nodes may a nnounce false values due to a lack of accuracy or hacking intention. Furthermore, a network bottleneck may occur when ru nning TOR in countries with low Internet speed. In this paper, we highlight the censorship challenges that Internet u sers face when using anti,censorship tools in such countries. We show that the current anti,censorship solutions having limita tions when implemented in countries with extensive internet filtering and low Internet speed. In order to overcome such limit ations, we propose a new anonymity online solution based on TOR. The network nodes are selected using a trust based syst em. Most encryption and path selection computation overhead are shifted to our network nodes. We also provide a new encrypt ion framework where the nodes with higher bnd and r esources are chosen and verified carefully according to specific metrics. We use an atomic encryption between entry and Exit nodes (Ex) without revealing the secret components of each par ty. We demonstrate that our solution can provide anonymous browsing in countries with slow internet as well as fewer bottl enecks.  

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[19] Weaver A., Secure Sockets Layer, The IEEE International Conference on Computer , Virginia, USA, vol. 39, no. 4, pp. 88790, 2006. Tameem Eissa received his BS and MSc degrees in computer engineering from Aleppo University in 2005 and 2007 respectively, and PhD degree in computer science from UTM, Malaysia, in 2012. He is now a Post Doctor research fellow in Chonbuk National University. His research interests include wireless network and cloud computing security. Gihwan Cho received his BSc and Msc degrees in computer science and statistics from Chonnam National University and Seoul National University in 1985 and 1987 respectively, and PhD degree in computer science from University of Newcastle, England, in 1996. Currently, he is a professor at the Division of Electronic and Informa tion Engineering at Chonbuk National University, Jeonju, S. Korea. His research interests include mobile computing, wireless sensor network, information security, computer communication and wireless security.