Algorithm 2.

GetPBBM.

INPUT: LBPCode1…..LBPCodem extracted from m samples captured by a certain individual.

OUTPUT: PBBM of the certain individual.

Algorithm:

For n=1 to ${\mathrm{C}}_{\mathrm{m}}^2$ do

sampling two samples with non-replacement;

get BBM(n) by invoking GetBBM_twosamples.

endfor

take these BBMs as new LBPCodes.

use these new LBPCodes to generate PBBM according to Definition 1 and 2.