This comprehensive survey, tried to mention two encryption approaches to make an access key which can be utilized inside the field of computer security, and which can ensure an abnormal state of mystery, as well as, with an abnormal state of sureness, give a personal identity through Information Fusion (IF) methods. In particular, two non-associated zones have been joined, Biometrics and Public-key Cryptography. This decision was taken with a specific end goal to traverse the limits these two methodologies have discovered uniquely. In this review analysis, two algorithms Face Information Fusion and Biometric and Numerical Information Fusion.