Novel Approach To Cell-Counting-Based Attack Against Tor
Journal Title: International Journal of Research in Computer and Communication Technology - Year 2013, Vol 2, Issue 10
Abstract
Different low-latency unidentified communication systems such as Tor and Anonymizer have been deliberate to make available anonymity service for users. In order to hide from view the communication of users, most of the secrecy systems pack the application data into equal-sized cells. Through extensive experiments on Tor, we originate that the size of IP packets in the Tor network can be very active because a cell is an application concept and the IP layer may repack cells. Based on that, we consider a new cellcounting-based attack against Tor, which allows the attacker to substantiate anonymous communication association among users very quickly. In this attack, by slightly unreliable the number of cells in the target traffic at the malicious exit onion router, the attacker can embed a furtive signal into the dissimilarity of cell counter of the target traffic. The entrenched signal will be carried along with the target traffic and reach your destination at the malicious entry onion router. Then, an accessory of the attacker at the malicious entry onion router will identify the surrounded signal based on the received cells and confirm the communication connection among users. We have executed this attack against Tor, and our investigational data validate its possibility and effectiveness. There are several exclusive features of this attack. First, this attack is extremely efficient and can confirm very short communication sessions with only tens of cells. Second, the attack is effective, and its detection rate approaches 100% with a very low fake positive rate. Third, it is feasible to implement the attack in a way that comes into view to be very tricky for honest participants to detect.
Authors and Affiliations
K. Venkateswarlu, S. Srinivasulu, N. Rajya Lakshmi
Keywords
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