A C-secure Digital Fingerprinting Scheme Combined with Error-Correcting Code

At present, in digital fingerprinting coding algorithm, AND-ACC based on BIBD is the most efficient and can precisely trace several colluders. But when the extracted fingerprint is damaged, a miscarriage of justice is likely to occur. And when the number of users becomes larger, the efficiency of algorithm declines rapidly. Here, combined ACC based on Euclidean Geometries (EG) with ECC, the first is used in the under layer. Then we use Turbo encoder to deal with the fingerprint sequences and get the output as the final fingerprint for users. The scheme has both their advantages. It makes the fingerprint more robust and reduces the mistake rate. Besides it can accommodate more users while it guarantees to find the same number of colluders.