Identifying the location of mobile nodes in IP based networks
From What The Wiki?!
Abstract Cellular telecommunication networks provide the position of mobile users confidential, since the communicating peers are not aware of the location of each other. This feature is based on that a mobile telecommunication infrastructure is in one hand, one organisation controls it. The different cellular networks are joined to provide roaming, as each participant are trusted in each other and all of them provide location hiding of the mobile users. In a mobile telecommunication infrastructure, the communication usually encrypted, its lines are physically separated, so it is hard to tamper with. Moreover, there are only a few nodes, which are aware of the mobile users. In addition, in GSM networks each mobile user have the same constant voice bandwidth, therefore it is impossible to distinguish them by their traffic flow patterns.In the IP networks, the support for mobility has gained high importance. In the recent researches, mostly the optimisation of network parameters, like bandwidth, delay etc. are emphasised. Also efforts have been made to provide basic security services as confidentiality and authentication of signalling, user and its traffic. Unfortunately, the issues raised by the location confidentiality have not investigated deeply. The Internet consists of different size and from different security level IP networks, with different trust relationships. Even if the traffic is encrypted and the source identification data (e.g. source IP address) is not known, there are methods to reveal the location of mobile users by investigating in its traffic patterns.
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Categories: Events | 31 July 2005 | 16:00 | Tent 1
