Research Article
A Fragile Zero Watermarking Scheme to Detect and Characterize Malicious Modifications in Database Relations
Algorithm 5
Watermark verification.
| Compute for (by using Algorithm 1) | | Obtain from CA | | Extract from | | = Decrypt(, ) | | For to length() Do | | If = Then | | match_count = match_count + 1 | | End if | | total_count = total_count + 1 | | End For | | = match_count/total_count * 100 | | = 1 – | | If ≠ 0 Then | | Database Relation is tempered with distortion rate | | End if |
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