A Multivariant Stream Analysis Approach to Detect and Mitigate DDoS Attacks in Vehicular Ad Hoc Networks

Algorithm 1

Input: Network Trace Nt.

Output: Ruleset Rs.

Step 1. Start

Step 2. Read network trace Nt.

Step 3. Split trace into different time window.

Step 4. Trace set Ts =

Step 5. For each time window Ti from Ts

Step 6. For each stream class Si

Step 7. Compute average payload Ap =

Step 8. Compute average hop count Ahc =

Step 9. Compute average ttl value Attl =

Step 10. Compute average packet frequency Apf =

Step 11. End

Step 12. Generate Rule Gr = Ahc, Attl,

Step 13. Add to rule set Rs =

Step 14. End

Step 15. Stop.