1. DNS and DNSSec Eustace Asanghanwa Andrew Bates Shane Jahnke Brian Wilke

2. Introduction Standard DNS Security Concerns DNSSEC Management Implications Impact to Embedded Systems Conclusions

3. Standard DNS

4. Security Concerns UDP Query ID only 16 bits Small search space Well known ports

5. DNSSEC Public Key Infrastructure, e.g. SSL Chain of Authority Validation of DNS records

6. Management Implications Who manages keys? Root keys Key rotation Clock synchronization Requires wide spread adoption Few production implementations

7. Impact to Embedded Systems Embedding Challenges Limited memory & storage Limited CPU resources Limited power Expensive secure storage Linux and BIND9 installed, and DNS configured. Currently configuring for DNSSEC

8. Conclusions DNS has security concerns DNSSEC offers solutions Solutions introduce new problems