Research Article
Security Analysis and Improvement of Fingerprint Authentication for Smartphones
Table 1
Size and meaning of each field in a minutia in the decrypted
csfp.tpl [
19].
| | Index | Size (B) | Meaning |
| | 0x00 | 4 | Node (minutia) id | | 0x04 | 2 | coordinate | | 0x06 | 2 | coordinate | | 0x08 | 4 | Duplicate count (weight) | | 0x0c | 2 | θ (0 ≤ θ ≤ 47) | | 0x0e | 32 | Additional information of node | | 0x2e | 1 | Minutia type | | 0x2f | 4 | (Distance to next minutia in bytes)/16 |
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A weight is the number of occurrences of the same minutia point when a fingerprint is scanned multiple times to enhance accuracy.
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