Speaker
Matthew Thomas
(Verisign)
Description
This presentation will showcase Verisign’s Transitive Trust tool, which maps DNS resolution dependencies based on delegation and name server host relationships. We use this tool to analyze all TLD delegations at the DNS root and construct a directed graph of resolution dependencies. The resulting structure reveals distinct subgraphs and dependency clusters associated with common operators or shared infrastructure. Using this graph, we identify critical nodes whose failure could affect disproportionately large portions of the namespace and quantify structural characteristics that may indicate fragility and operational or security risks.
| Talk duration | 10 Minutes (+5 for Q&A) |
|---|
Primary author
Matthew Thomas
(Verisign)
Co-author
William Carroll
(Verisign)
