Abstract
Website Fingerprinting attacks enable a passive eavesdropper to recover the user's otherwise anonymized web browsing activity by matching the observed traffic with prerecorded web traffic templates. The defenses that have been proposed to counter these attacks are impractical for deployment in real-world systems due to their high cost in terms of added delay and bandwidth overhead. Further, these defenses have been designed to counter attacks that, despite their high success rates, have been criticized for assuming unrealistic attack conditions in the evaluation setting. In this paper, we propose a novel, lightweight defense based on Adaptive Padding that provides a sufficient level of security against website fingerprinting, particularly in realistic evaluation conditions. In a closed-world setting, this defense reduces the accuracy of the state-of-the-art attack from 91 % to 20 %, while introducing zero latency overhead and less than 60 % bandwidth overhead. In an open-world, the attack precision is just 1 % and drops further as the number of sites grows.
Original language | English |
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Title of host publication | Computer Security - ESORICS 2016: 21st European Symposium on Research in Computer Security, Heraklion, Greece, September 26-30, 2016, Proceedings, Part I |
Editors | Ioannis Askoxylakis, Sotiris Ioannidis, Sokratis Katsikas, Catherine Meadows |
Place of Publication | Cham |
Publisher | Springer |
Pages | 27-46 |
Number of pages | 20 |
ISBN (Electronic) | 978-3-319-45744-4 |
ISBN (Print) | 978-3-319-45743-7 |
DOIs | |
Publication status | Published - 15 Sept 2016 |
Event | 21st European Symposium on Research in Computer Security - Crete, Greece Duration: 26 Sept 2016 → 30 Sept 2016 http://www.ics.forth.gr/esorics2016/ https://www.ics.forth.gr/esorics2016/ |
Publication series
Name | Lecture Notes in Computer Science |
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Publisher | Springer Cham |
Volume | 9878 |
ISSN (Print) | 0302-9743 |
ISSN (Electronic) | 1611-3349 |
Conference
Conference | 21st European Symposium on Research in Computer Security |
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Abbreviated title | ESORICS 2016 |
Country/Territory | Greece |
City | Crete |
Period | 26/09/16 → 30/09/16 |
Internet address |
Keywords / Materials (for Non-textual outputs)
- Privacy
- Anonymous communications
- Website Fingerprinting