Method for making anti-collusion fingerprint codes from the semi regular GD-PBIBD with parameters ?^?, ?^2?-2,?^?-1,?,0,1

摘要

The present invention (n ^a,2a n ^-2, n ^-1a, n, 0,1) relates to a method for generating code using the collusion fingerprint GD-PBIBD. In other words robust to attack averaging using a computer and to a method for generating a printer code Pinker that is not limited to the generated code size. ; In the present invention, the step of receiving over a random prime number n and an arbitrary integer a and 3; And step 2 to generate the index n × n matrix (matrix index); 3 to produce the n type _i n × n matrix (type_i matrax) and; The n × n matrix and the index n × n matrix by using a single type _i n ^2× n 2 4 and generating a matrix; 5 generating ^a n × n matrix ^-22a; And the ⁿ a × n ^-22a in matrix 6 including the step of extracting any of the single column (n ^a,2a n ^-2, n ^-1a, n, 0,1) using the anti-collusion GD-PBIBD fingerprint code this generation method is provided. ; Fingerprint, code