Abstract-The level of trust accorded to certification authorities has been decreasing over the last few years as several cases of misbehavior and compromise have been observed. Logbased approaches, such as Certificate Transparency, ensure that fraudulent TLS certificates become publicly visible. However, a key element that log-based approaches still lack is a way for clients to verify that the log behaves in a consistent and honest manner. This task is challenging due to privacy, efficiency, and deployability reasons. In this paper, we propose the first (to the best of our knowledge) gossip protocols that enable the detection of log inconsistencies. We analyze these protocols and present the results of a simulation based on real Internet traffic traces. We also give a deployment plan, discuss technical issues, and present an implementation.
An efficient gossip protocol was proposed to detect several types of log inconsistencies REF 57] .
Efficient gossip protocols for verifying the consistency of Certificate logs
2015 IEEE Conference on Communications and Network Security (CNS)
2015 IEEE Conference on Communications and Network Security (CNS)
Computer Science