Using Physical Context-Based Authentication against External Attacks: Models and Protocols

Table 6

Authentication performance rates for BS protocol with different values.

	FND/		STB1/		STB2/
	OK	NOK	OK	NOK	OK	NOK
Correct ID	17	3	13	7	11	9
Fake ID	21	169	9	181	8	182
FRR	0.15		0.35		0.45
FAR	0.11		0.047		0.042
Precision	0.447		0.59		0.578
Recall	0.85		0.65		0.55
Accuracy	88.5%		92.3%		91.9%