Reference : PAG: Private and Accountable Gossip
Scientific congresses, symposiums and conference proceedings : Unpublished conference
Engineering, computing & technology : Computer science
Security, Reliability and Trust
http://hdl.handle.net/10993/27446
PAG: Private and Accountable Gossip
English
Decouchant, Jérémie mailto [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
Ben Mokhtar, Sonia [CNRS LIRIS & INSA Lyon]
Petit, Albin [INSA Lyon]
Quéma, Vivien [Grenoble INP]
28-Jun-2016
10
Yes
No
International
IEEE International Conference on Distributed Computing Systems
from 27-06-2016 to 30-06-2016
Nara
Japan
[en] Accountability ; Privacy ; Peer-to-peer
[en] A large variety of content sharing applications rely, at least partially, on gossip-based dissemination protocols. However, these protocols are subject to various types of faults, among which selfish behaviours performed by nodes that benefit from the system without contributing their fair share to it. Accountability mechanisms (e.g., PeerReview, AVMs, FullReview), which require that nodes log their interactions with others and periodically inspect each others’ logs are effective solutions to deter faults. However, these solutions require that nodes disclose the content of their logs, which may leak sensitive information about them. Building on a monitoring infrastructure and on homomorphic cryptographic procedures, we propose in this paper PAG, the first accountable and partially privacy-preserving gossip protocol. We assess PAG theoretically using the ProVerif cryptographic protocol verifier and evaluate it experimentally using both a real deployment on a cluster of 48 machines and simulations. The performance evaluation of PAG, performed using a video live streaming application, shows that it is compatible with the visualisation of live video content on commodity Internet connections. Furthermore, PAG’s bandwidth consumption inherits the desirable scalability properties of gossip when the number of users in the system grows.
Researchers ; Students ; General public
http://hdl.handle.net/10993/27446

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