Another restraint is censorship, which may be used to restrict free access to information. In political regimes, where personal rights, the freedom of speech, and in particular free access to information is restricted, these possibilities of modern data collection can lead to persecution of individuals if their identity is unveiled. Democratic societies should further advocate environments that respect user privacy for citizens and should support individuals who face repressive censorship to access public information without being identified or traced. Simultaneously to the increasing amount and availability of information about Internet users, new information retrieval, data mining and further technologies allow to automatically collect, filter and analyze personal information and to draw conclusions based on this process. On the other hand, information technology allows data analysis to a degree which was inconceivable a few years ago. The Internet increasingly permeates everyday life of individuals around the world.
Furthermore, this could lead to an adoption barrier of similar privacy-enhancing technologies for a Future Internet. This leads to fewer resources available to the Tor community than theoretically possible, and increases the exposure of privacy-concerned individuals. Our results indicate that without massive future optimizations of Tor performance, it is unlikely that a larger part of Internet users would adopt it for everyday usage.
Furthermore, we compare these measurements to critical latency thresholds gathered from web usability research, including our own user studies. This paper presents comparative experiments on Tor latency and throughput for surfing to 500 popular websites from several locations around the world during the period of 28 days. Detailed measurements about the performance of Tor are crucial for solving this issue. This causes a negative impact on the overall privacy provided by Tor, since it depends on the size of the user community and availability of shared resources. However, due to the performance overhead caused by Tor, many Internet users refrain from using it. Internet anonymization software such as Tor is an important instrument to protect online privacy. While the Internet increasingly permeates everyday life of individuals around the world, it becomes crucial to prevent unauthorized collection and abuse of personalized information.
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