A method includes transmitting initialization data including an error correction code and a matrix. The method also includes receiving registration data including a transformed registration biometric template, a registration user identifier, and a hashed registration code. The transformed registration biometric template may be determined based on a registration code word selected from the error correction code. The hashed registration code word may be determined by hashing the registration code word using the matrix. The registration user identifier may be associated with a first user described by the transformed registration biometric template.