Research Article
Sound-Proximity: 2-Factor Authentication against Relay Attack on Passive Keyless Entry and Start System
Table 4
FN and FP for the cross-correlation.
| | | 1 s | 2 s | 3 s | 4 s | 5 s |
| | 0.1 | 0.00/0.60 | 0.00/0.04 | 0.00/0.01 | 0.00/0.01 | 0.00/0.01 | | 0.2 | 0.01/0.06 | 0.00/0.00 | 0.00/0.00 | 0.00/0.00 | 0.00/0.00 | | 0.3 | 0.01/0.00 | 0.00/0.00 | 0.04/0.00 | 0.00/0.00 | 0.00/0.00 | | 0.4 | 0.10/0.00 | 0.02/0.00 | 0.33/0.00 | 0.01/0.00 | 0.03/0.00 | | 0.5 | 0.44/0.00 | 0.23/0.00 | 0.77/0.00 | 0.13/0.00 | 0.28/0.00 | | 0.6 | 0.74/0.00 | 0.63/0.00 | 0.97/0.00 | 0.61/0.00 | 0.79/0.00 | | 0.7 | 0.81/0.00 | 0.94/0.00 | 0.99/0.00 | 0.94/0.00 | 0.99/0.00 | | 0.8 | 0.99/0.00 | 0.99/0.00 | 0.99/0.00 | 0.99/0.00 | 0.99/0.00 | | 0.9 | 0.99/0.00 | 1.00/0.00 | 1.00/0.00 | 1.00/0.00 | 1.00/0.00 |
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