DPI censor lab

What is what

File	Role
corpus.py	given: 600 synthetic connection records, the blocklist, the keywords, the two CDN addresses, the proxy, and truth(); the record format is documented at the top
dpi.py	given: name_matches, dns_filter, ip_filter, keyword_filter; sni_filter is the extra credit
evade.py	given: hide_sni, use_doh, via_proxy, the three evasions
selfcheck.py	given: PASS, FAIL with what it expected, or SKIP per function
experiments.py	given: the measurement harness, writes results.json
report.md	yours: create it; the Canvas page says what belongs in it

Keep the given files as they are, except sni_filter in dpi.py if you do the extra credit.

Run

Python 3 only, no packages, any computer.

python3 -c "import corpus; [print(r) for r in corpus.records()[:5]]"
python3 selfcheck.py
python3 experiments.py                  # all four parts
python3 experiments.py corpus           # A: what is in the traffic
python3 experiments.py filters          # B: the strategies, measured
python3 experiments.py evasion          # C: which strategies still catch each evasion
python3 experiments.py escalate         # D: the censor's next move, and its cost

Each run rewrites results.json for the parts it ran.