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/kpa.csv

@@ -0,0 +1,43 @@
+snr_db,n_frames,kappa,eve_ser
+0,1,0.2374871574,0.99874975
+0,2,0.6126027606,0.96312825
+0,3,0.7285515711,0.921628875
+0,4,0.8244251639,0.85221925
+0,5,0.868628718,0.797125
+0,6,0.8920436099,0.745713875
+0,8,0.9208301157,0.67688775
+0,10,0.9429872826,0.592138625
+0,12,0.9557282105,0.534421875
+0,16,0.9700051412,0.44833975
+0,24,0.9802580416,0.38197025
+0,32,0.9852379695,0.351050875
+0,48,0.9904022858,0.32166525
+0,64,0.993118532,0.307348
+10,1,0.3489475794,0.989224875
+10,2,0.8794977516,0.704872
+10,3,0.9473693997,0.547376875
+10,4,0.9682661489,0.455776875
+10,5,0.9782963678,0.3962285
+10,6,0.9843041778,0.359232
+10,8,0.9900029436,0.326613375
+10,10,0.9934537426,0.306601375
+10,12,0.9949941516,0.2992645
+10,16,0.9965374678,0.291205125
+10,24,0.9978871465,0.285018125
+10,32,0.9984912023,0.28255425
+10,48,0.9990138412,0.280105125
+10,64,0.9992718786,0.279036875
+20,1,0.596763967,0.861350125
+20,2,0.984469898,0.34732075
+20,3,0.9948319912,0.300176375
+20,4,0.9975389287,0.286598125
+20,5,0.9984581739,0.282405125
+20,6,0.9988854468,0.2803655
+20,8,0.9992000297,0.279362875
+20,10,0.9994319767,0.278179625
+20,12,0.9995499209,0.277694875
+20,16,0.9996712342,0.277181875
+20,24,0.9997934118,0.276410875
+20,32,0.999845539,0.2763615
+20,48,0.9999018267,0.276363875
+20,64,0.9999270439,0.276194125