Daubert, Jörg ; Grube, Tim ; Fischer, Mathias ; Mühlhäuser, Max (2016)
On the anonymity of privacy-preserving many-to-many communication in the presence of node churn and attacks.
Las Vegas, USA
doi: 10.1109/CCNC.2016.7444871
Konferenzveröffentlichung, Bibliographie
Kurzbeschreibung (Abstract)
Anonymity can protect from political repression in Online Social Networks (OSNs) as well as from undesired profiling, e.g., by insurance companies, in todays’ Internet. P2P- based anonymous publish-subscribe (pub-sub) is a highly-scalable approach to protect anonymity while enabling efficient many- to-many communication between services and users. However, churn and overlay degradation in P2P-based pub-sub systems require periodic repair and optimization operations to maintain the anonymity protection and the efficiency of the content dissemination. This paper analyzes attacks on such repair and optimization functions to disclose publishers and subscribers. For that, we apply a strong attacker model that combines large- scale traffic monitoring with malicious insiders. Furthermore, we propose and evaluate heuristic countermeasures. Our findings indicate that some attacks can be mitigated at reasonable costs. However, churn seems to remain a major threat to anonymity.
| Typ des Eintrags: | Konferenzveröffentlichung |
|---|---|
| Erschienen: | 2016 |
| Autor(en): | Daubert, Jörg ; Grube, Tim ; Fischer, Mathias ; Mühlhäuser, Max |
| Art des Eintrags: | Bibliographie |
| Titel: | On the anonymity of privacy-preserving many-to-many communication in the presence of node churn and attacks |
| Sprache: | Englisch |
| Publikationsjahr: | Januar 2016 |
| Verlag: | IEEE |
| Buchtitel: | Proceedings of the 13th Annual IEEE Consumer Communications & Networking Conference (CCNC) |
| Veranstaltungsort: | Las Vegas, USA |
| DOI: | 10.1109/CCNC.2016.7444871 |
| Kurzbeschreibung (Abstract): | Anonymity can protect from political repression in Online Social Networks (OSNs) as well as from undesired profiling, e.g., by insurance companies, in todays’ Internet. P2P- based anonymous publish-subscribe (pub-sub) is a highly-scalable approach to protect anonymity while enabling efficient many- to-many communication between services and users. However, churn and overlay degradation in P2P-based pub-sub systems require periodic repair and optimization operations to maintain the anonymity protection and the efficiency of the content dissemination. This paper analyzes attacks on such repair and optimization functions to disclose publishers and subscribers. For that, we apply a strong attacker model that combines large- scale traffic monitoring with malicious insiders. Furthermore, we propose and evaluate heuristic countermeasures. Our findings indicate that some attacks can be mitigated at reasonable costs. However, churn seems to remain a major threat to anonymity. |
| Freie Schlagworte: | SSI - Area Secure Smart Infrastructures;S1;Solutions;Anonymity, Overlay, Attack, Optimization |
| ID-Nummer: | TUD-CS-2015-1216 |
| Fachbereich(e)/-gebiet(e): | 20 Fachbereich Informatik 20 Fachbereich Informatik > Telekooperation DFG-Sonderforschungsbereiche (inkl. Transregio) DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche DFG-Graduiertenkollegs DFG-Graduiertenkollegs > Graduiertenkolleg 2050 Privacy and Trust for Mobile Users Profilbereiche Profilbereiche > Cybersicherheit (CYSEC) LOEWE LOEWE > LOEWE-Zentren LOEWE > LOEWE-Zentren > CASED – Center for Advanced Security Research Darmstadt DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 1119: CROSSING – Kryptographiebasierte Sicherheitslösungen als Grundlage für Vertrauen in heutigen und zukünftigen IT-Systemen |
| Hinterlegungsdatum: | 31 Dez 2016 12:59 |
| Letzte Änderung: | 14 Jun 2021 06:14 |
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