Research Article
Sound-Proximity: 2-Factor Authentication against Relay Attack on Passive Keyless Entry and Start System
Table 3
FN and FP for the cosine similarity.
| | | 1 s | 2 s | 3 s | 4 s | 5 s |
| | 0.1 | 0.55/0.05 | 0.46/0.00 | 0.86/0.00 | 0.40/0.00 | 0.75/0.00 | | 0.2 | 0.76/0.00 | 0.79/0.00 | 0.97/0.00 | 0.76/0.00 | 0.96/0.00 | | 0.3 | 0.82/0.00 | 0.94/0.00 | 0.99/0.00 | 0.92/0.00 | 1.00/0.00 | | 0.4 | 0.87/0.00 | 0.98/0.00 | 1.00/0.00 | 0.98/0.00 | 1.00/0.00 | | 0.5 | 0.92/0.00 | 0.99/0.00 | 1.00/0.00 | 0.99/0.00 | 1.00/0.00 | | 0.6 | 0.96/0.00 | 1.00/0.00 | 1.00/0.00 | 1.00/0.00 | 1.00/0.00 | | 0.7 | 0.99/0.00 | 1.00/0.00 | 1.00/0.00 | 1.00/0.00 | 1.00/0.00 | | 0.8 | 0.99/0.00 | 1.00/0.00 | 1.00/0.00 | 1.00/0.00 | 1.00/0.00 | | 0.9 | 0.99/0.00 | 1.00/0.00 | 1.00/0.00 | 1.00/0.00 | 1.00/0.00 |
|
|
