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Probabilistic Spying on Encrypted Tunnels
- 2. WHO ARE WE? PRASAD RAO - HPLABS BRANDON NIEMCZYK – HP DVLABS
- 3. WHAT IS PACUMEN ? A tool to identify what applications are being used over an encrypted tunnel.
- 4. ACADEMIA HAS PRODUCED PAPERS… Where’s the code?
- 5. PREVIOUS WORK Results only. Focus on one application at a time. Results are difficult to interpret.
- 6. HOW DOES PACUMEN WORK? PACUMEN learns by example.
- 7. HOW DOES PACUMEN WORK? Train PACUMEN Collect Example Data Classifier Classify new data Provide new data from network/pcap 10 Collect Training Data 20 Build Classifier 30 Get unknown data 40 Classify unknown data 50 GOTO 30
- 8. HOW DOES PACUMEN WORK? A B A SIZE A SIZE B 1 1 2 CLASSIFY IRRELEVANT SIZE 1 2 3 10 seconds UPDATE CONFIDENCE
- 9. HOW DOES PACUMEN WORK? - Decision Trees Multiple types of classifiers can be created. - Mixed Gaussian Likelihood functions
- 10. DECISION TREES Is it a dog or a house cat? Is it heavier than fifteen pounds? Does it bark? Probably a cat Probably a dog Probably a dog
- 12. DEMO TIME!
- 13. THANK YOU Any Questions? PACUMEN - https://github.com/bniemczyk/pacumen.git Prasad Rao – prasad.rao@hp.com Brandon Niemczyk – insecurity@hp.com Vib Chhabra – vaibhav.chhabra@hp.com
Editor's Notes
- 1 minute – brandon and prasad
- 1 minute – brandon
- 3 minutes –prasad Talk about the work acadamia has published
- 3 minutes – prasad (maybe brandon) Talk about issues with existing research.
- 5 minutes (with next slide) – brandon Talk about how pacumen works.
- 5 minutes (with next slide) – brandon Talk about how pacumen works.
- 5 minutes (with next slide) – brandon Talk about how pacumen works.
- 5 minutes (w/ prev slide) – brandon Talk about how pacumen works.
- 5 minutes (w/ prev slide) – brandon Talk about how pacumen works.
- 5 minutes (w/ prev slide) – brandon Talk about how pacumen works.
- 3 minutes - Brandon