Achievable throughputs 1 Average fractional equivocation 1 Average information 1 Average information leakage rate 1 Economic and social effects 1 Generalized secrecy outage probability 1 Information theory 1 Information-theoretic secrecy 1 Molecular communication 1 Molecular timing channel 1 Optimal transmission rate 1 Performance metrics 1 Physical-layer secrecies Secrecy outage probabilities 1 Throughput performance 1 Timing circuits 1