Anonymous network tracing method based on controlled node

Abstract

The invention relates to an anonymous network tracing method based on a controlled node, and the method comprises the steps: 1, deploying a controlled Tor relay node; 2, adding flowing watermark information to flow before an entrance guard, intercepting the flow between a client and the entrance guard, carrying out the correlation between the flow entering a Tor network and the flow coming out ofthe Tor network, and carrying out the correlation mapping of the client and a server; 3, controlling the client to download all current online relay route information from a directory server, judgingan entrance guard node, a central node and an exit node which may be selected by one client according to an entrance node selection strategy, and carrying out the judgment for one time if there is a request initiated to an entrance guard node set in the requests initiated by the client, so as to determine whether a target address of a connection request is a controlled node or not: repeatedly transmitting resetting messages to the client till the client selects the controlled node if the request target is not the controlled node; 4, controlling the whole route link; 5, recognizing the flowingwatermark, and determining the communication correlation.

Description

technical field [0001] The invention belongs to the technical field of information security, and in particular relates to an anonymous network traceability method. Background technique [0002] With the rapid development of the Internet, the network has been integrated into various fields such as military affairs, politics, economy, society, and daily life. While it is convenient for people's lives, data shows that the number of crimes committed by using computer networks is on the rise, and the means of crime tend to be intelligent, professional, and concealed. The emergence of anonymous networks can effectively protect the personal privacy of Internet users, but it also provides convenience for criminals to hide their real network addresses and commit cyber crimes. [0003] TOR is a mainstream anonymous network with more than 10 million users. Ordinary TOR connections generally go through three nodes: entry node, intermediate node, and exit node. The client first random...

AI Technical Summary

Problems solved by technology

Penetration-based traceability is to use penetration attacks to enter or control nodes in the Tor network, participate in or destroy the communication process, and thus confirm the relevance of the communication. The existing methods require the attacker to control the user to select one or more controlled nodes.

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