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--- Timezone: UTC
Creation date: 2025-02-19
Creation time: 08-31-08
--- Number of references
2
inproceedings
2019_delacadena_countermeasure
POSTER: Traffic Splitting to Counter Website Fingerprinting
2019
11
12
2533-2535
Website fingerprinting (WFP) is a special type of traffic analysis, which aims to infer the websites visited by a user. Recent studies have shown that WFP targeting Tor users is notably more effective than previously expected. Concurrently, state-of-the-art defenses have been proven to be less effective. In response, we present a novel WFP defense that splits traffic over multiple entry nodes to limit the data a single malicious entry can use. Here, we explore several traffic-splitting strategies to distribute user traffic. We establish that our weighted random strategy dramatically reduces the accuracy from nearly 95% to less than 35% for four state-of-the-art WFP attacks without adding any artificial delays or dummy traffic.
https://www.comsys.rwth-aachen.de/fileadmin/papers/2019/2019-delacadena-splitting-defense.pdf
ACM
Proceedings of the 26th ACM SIGSAC Conference on Computer and Communications Security (CCS '19), November 11-15, 2019, London, United Kingdom
London, United Kingdom
November 11-15, 2019
978-1-4503-6747-9/19/11
10.1145/3319535.3363249
1
WladimirDe la Cadena
AsyaMitseva
JanPennekamp
JensHiller
FabianLanze
ThomasEngel
KlausWehrle
AndriyPanchenko
inproceedings
2019_pennekamp_multipath
Multipathing Traffic to Reduce Entry Node Exposure in Onion Routing
2019
10
7
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.
Poster Session
https://www.comsys.rwth-aachen.de/fileadmin/papers/2019/2019-pennekamp-multipathing.pdf
IEEE
Proceedings of the 27th IEEE International Conference on Network Protocols (ICNP '19), October 7-10, 2019, Chicago, IL, USA
Chicago, IL, USA
27th IEEE International Conference on Network Protocols (ICNP 2019)
7-10. Oct. 2019
978-1-7281-2700-2
2643-3303
10.1109/ICNP.2019.8888029
1
JanPennekamp
JensHiller
SebastianReuter
WladimirDe la Cadena
AsyaMitseva
MartinHenze
ThomasEngel
KlausWehrle
AndriyPanchenko