This document tracks known attacks on current network protocol obfuscation techniques.
| Attack Type | Technique(s) Impacted | Notes |
|---|---|---|
| Semantics | FTE (controlled-length attack) | Known attacks are discussed in [0]. |
| Entropy | Obfs4 (uniform entropy distribution on first bytes of application contents of first packet) | Known attacks are discussed in [0]. |
| Machine Learning | Meek (timing and entropy-based features training) | Known attacks are discussed in [0]. |