Interactive Graph of Relationships Between Root and Intermediate Certificate Authorities Is Released, Featured on SlashDot

The Tree of TrustDecember 17, 2012
An interactive graph created by DAAD postdoctoral fellow Johanna Amann shows the relationships between root and intermediate certificate authorities (CAs) of institutions around the world. The graph was featured on SlashDot. Amann extracted from each certificate chain the path of intermediate CAs up to the root and then merged all paths into a graph. Amann works in the Networking and Security Group. The data for the graph was collected by the Bro network monitor and is also used by the ICSI Certificate Notary, which is managed by Networking and Security researchers Seth Hall, Robin Sommer, and Matthias Vallentin in addition to Amann. Read more and see the graph.