Patent ID: 7953975
Filing Date: 2011-05-31
Classification: G06F,G06T

Abstract:
1. A computer implemented method of generating anti-collusion fingerprint codes using a (n a , n 2a−2 , n a−1 , n, 0,1) GD-PBIBD, the fingerprint codes being generated on a computer usable medium having a computer readable program code embodied therein, said computer readable program code adapted to be executed to implement a method for generating the fingerprint codes for use with digital media for the protection of copyrights associated with said digital media, the computer implemented method comprising: providing a computer system, wherein the system comprises the computer usable medium with the computer readable program code being executed to perform the following steps: step 1 of electronically receiving, by said computer system, an arbitrary prime number n and an arbitrary integer a larger than 3; step 2 of automatically generating, by said computer system, an n×n index matrix; step 3 of automatically generating, by said computer system, n n×n type_i matrixes; step 4 of automatically generating, by said computer system, an n step 5 of automatically generating, by said computer system, an n step 6 of automatically extracting, by said computer system, one arbitrary column from the n inserting said fingerprint code into digital content for protecting copyrights of said digital content.