NDLI: A Distributed Reputation System for Certification Authority Trust Management

Content Provider	IEEE Xplore Digital Library
Author	Classen, J. Braun, J. Volk, F. Hollick, M. Buchmann, J. Muhlhauser, M.
Copyright Year	2015
Description	Author affiliation: CASED, Tech. Univ. Darmstadt, Darmstadt, Germany (Classen, J.; Braun, J.; Volk, F.; Hollick, M.; Buchmann, J.; Muhlhauser, M.)
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.
Starting Page	1349
Ending Page	1356
File Size	331886
Page Count	8
File Format	PDF
e-ISBN	9781467379526
DOI	10.1109/Trustcom.2015.529
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-08-20
Publisher Place	Finland
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Privacy Protocols Routing Peer-to-peer computing Internet Distributed system Security History Trust management Web PKI
Content Type	Text
Resource Type	Article

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