Keyed masking for secure multi-user semantic communication

Reproducibility package for the TIFS submission: transmit and receive
core, security stages (eavesdropper, jamming, key families, attack
difficulty, known-plaintext), real BERT token streams, closed-form
verification, and the scripts that regenerate every figure and table
from the released CSVs.

data/real_sec_stats.json

@@ -0,0 +1,31 @@
+{
+ "vocab_size": 30522,
+ "n_texts": 2000,
+ "frames": 24998,
+ "repeats": 8,
+ "decisions_per_point": 799936,
+ "distinct_tokens": 10486,
+ "max_token_id": 29599,
+ "headlines_scored": 1948,
+ "headline_runs": 4,
+ "recovery": {
+  "20": {
+   "legit": 0.1985369609856263,
+   "eve": 0.0,
+   "insider": 0.0,
+   "oma": 0.19815195071868583
+  },
+  "24": {
+   "legit": 0.5103952772073922,
+   "eve": 0.0,
+   "insider": 0.0,
+   "oma": 0.5160420944558521
+  },
+  "28": {
+   "legit": 0.7630903490759754,
+   "eve": 0.0,
+   "insider": 0.0,
+   "oma": 0.7583418891170431
+  }
+ }
+}