~/talk

Minos : A Lightweight and Dynamic Defense against Traffic Analysis in...

on YouTube 18m
Talkat USENIX ATC '25 · 2025-07-07..07-09· [networking, security]

speakers

name:Zihao Wang
links:none on file
name:Qing Li
links:none on file
name:Guorui Xie
links:none on file
name:Dan Zhao
links:none on file
name:Kejun Li
links:none on file
name:Zhuochen Fan
links:none on file
name:Lianbo Ma
links:none on file
name:Yong Jiang
links:none on file

resources

video:https://youtu.be/k_c0UtnhPcg
slides:none on file

summary

Minos implements a programmable-switch defense on Tofino1 that performs line‑rate header encryption and flow mixing to defend website and IoT fingerprinting. It adapts the PRINCE cipher via encryption round compression to fit a 12‑stage pipeline, achieves >94 Gbps encryption with only ~55% SRAM and no ALU/TCAM use, and uses a dynamic scheduler plus priority dummy queues to insert dummies. Evaluation shows attacker accuracy drops below 20% with roughly one‑tenth the overhead of prior defenses.

AI-written summary · about

chapters (13)

  1. 0:00Minos introduction and motivation
  2. 1:22Traffic analysis attacks and defenses
  3. 3:53Minos design overview
  4. 6:22Proxy module encryption challenges
  5. 8:30Schedule module flow interleaving
  6. 11:17Traffic morphing dummy packets
  7. 12:40Hardware implementation
  8. 13:23Performance evaluation setup
  9. 14:27Schedule module latency
  10. 14:49Traffic morphing rate control
  11. 15:10Performance comparison
  12. 15:31Website fingerprinting defense
  13. 16:57Conclusion

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