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Anonymous routing algorithm determines the performance and security of an anonymous communication system directly, which are two conflicting considerable factors for the practicality of the whole system. Most of existing anonymous routing algorithms care little about the tradeoff between performance and anonymity. Some algorithms aim to achieve better performance, while others aim to acquire higher...
Tor has become one of the most popular overlay networks for anonymizing TCP traffic. A novel and effective flow multiplication attack against Tor is proposed in this paper, which exploits the fundamental vulnerability of anonymous Web browsing by using a man-in-the-middle attack on client's HTTP flow. In the flow multiplication attack, whenever a malicious exit onion router detects a Web request to...
Wireless mesh networks (WMNs) have recently evoked much research attention as a novel technology for last-mile broadband Internet access. When designing a WMN, gateway placement is significant for it determines the total network throughput. To address this problem, a novel gateway placement approach is proposed in this paper, in which three objectives are optimized, i.e. the number of gateways, the...
Node churn is one hurdle to using peer-to-peer (P2P) networks as anonymous networks, which makes the anonymous path fragile and results in message loss and communication failures. A collaboration scheme including friendly neighbor-based incentive (FNI) and re-encryption mechanism is proposed to deal with the high node churn (changes in system membership) characteristic of unstructured P2P networks...
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