Н.Г. Ершов, Н.Ю. Рязанова
8
The problem of traffic hiding
in anonymous networks and the factors affecting anonymity
©
N.G. Yershov, N.Y. Ryazanova
Bauman Moscow State Technical University, Moscow, 105005, Russia
The article considers the problems of the development of anonymous networks, allowing
you to make contacts in the global network invisible to outside observers. All factors af-
fecting the vulnerability of the anonymous network are classified: vulnerabilities that
arise at the level of network nodes and at the level of messages sent over the network. It
is shown that to ensure anonymity at the level of nodes in the network, it is necessary to
hide the topology of the nodes to ensure network survivability and exclude substitution
messages. Effectiveness of the strategy of mixing nodes to solve these problems is demon-
strated. We analyzed currently known schemes of violating anonymity networks and types
of attacks on anonymous networks. We show how anonymity can be violated when inter-
cepting the message at the intermediate node, when identifying the communication tem-
plate of the network, analyzing the message transmission time. On the basis of the con-
ducted researches we formulated extended requirements for the implementation and
development of anonymous networks.
Keywords:
network, node, message, anonymous network, anonymous site, network at-
tack, mixing nodes.
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