(A) research on SDN-base anonymous network

Abstract

Current networks provide connectivity of consumers and service providers through routing algorithms and IP addresses. However, routing algorithms and IP addresses expose vulnerability at intermediate routers and hosts, even threaten anonymity and robustness. Therefore, in this paper, we propose an anonymous communication system using random routing and content-based address to prevent the vulnerability of anonymity and robustness. Random routing and content-based address implemented on top of software-defined network to conceal routing paths and addresses which makes difficult to specify which routers and hosts to target, thereby ensuring anonymity and robustness. For the performance evaluation of the anonymous communication system, we measure the diversity of the path, the length of the generated path, the detour probability, and the execution time over the size of topology. We conclude that the anonymous communication system achieves a goal without significant performance degradation compared to the existing network.