Paper Info
Title
A Distributed Reputation System for Certification Authority Trust Management
Abstract
In the current Web Public Key Infrastructure (Web PKI), few central instances have the power to make trust decisions. From a system's perspective, it has the side effect that every Certification Authority (CA) becomes a single point of failure (SPOF). In addition, trust is no individual matter per user, what makes trust decisions hard to revise. Hence, we propose a method to leverage Internet users and thus distribute CA trust decisions. However, the average user is unable to manually decide which incoming TLS connections are trustworthy and which are not. Therefore, we overcome this issue with a distributed reputation system that facilitates sharing trust opinions while preserving user privacy. We assess our methodology using real-world browsing histories. Our results exhibit a significant attack surface reduction with respect to the current Web PKI, and at the same time we only introduce a minimal overhead.
Year
DOI
Venue
2015
10.1109/Trustcom.2015.529
TrustCom/BigDataSE/ISPA
Field
DocType
Citations 
Public key infrastructure,Internet privacy,Reputation system,Attack surface,Trust anchor,Computer security,Computer science,Certificate authority,Computational trust,Web of trust,The Internet
Conference
1
PageRank 
References 
Authors
0.36
11
6
Name
Order
Citations
PageRank
Jiska Classen1339.10
Johannes Braun2338.66
Florian Volk3926.69
Matthias Hollick475097.29
Johannes Buchmann558752.67
Max Mühlhäuser61652252.87