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Multipathing Traffic to Reduce Entry Node Exposure in Onion Routing

  • Users of an onion routing network, such as Tor, depend on its anonymity properties. However, especially malicious entry nodes, which know the client’s identity, can also observe the whole communication on their link to the client and, thus, conduct several de-anonymization attacks. To limit this exposure and to impede corresponding attacks, we propose to multipath traffic between the client and the middle node to reduce the information an attacker can obtain at a single vantage point. To facilitate the deployment, only clients and selected middle nodes need to implement our approach, which works transparently for the remaining legacy nodes. Furthermore, we let clients control the splitting strategy to prevent any external manipulation.

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Author: Jan Pennekamp, Jens Hiller, Sebastian Reuter, Wladimir De la Cadena, Asya Mitseva, Martin Henze, Thomas Engel, Klaus Wehrle, Andriy Panchenko
URL:https://ieeexplore.ieee.org/document/8888029
DOI:https://doi.org/10.1109/ICNP.2019.8888029
ISBN:978-1-7281-2700-2
ISBN:978-1-7281-2701-9
ISSN:2643-3303
ISSN:1092-1648
Title of the source (English):Proceedings of the 27th annual IEEE International Conference on Network Protocols (Poster) (IEEE ICNP 2019), Chicago, Illinois, USA, October 2019
Publisher:IEEE Press
Document Type:Conference publication peer-reviewed
Language:English
Year of publication:2019
Number of pages:2
Faculty/Chair:Fakultät 1 MINT - Mathematik, Informatik, Physik, Elektro- und Informationstechnik / FG IT-Sicherheit
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