Systems and methods for secure and efficient enrollment into a federation which utilizes a biometric repository

A computer-program product comprising a non-transitory computer-usable medium having computer-readable program code embodied therein, the computer-readable program code adapted to be executed to implement a method comprising:

• receiving data related to an individual, the data comprising a plurality of elements of personally-identifying information (PII);
• creating a compositional key for the individual via a one-way hashing function, the one-way hashing function using the plurality of elements of PII as input;
• storing the compositional key and a biometric print for the individual as a biometric record in a biometric repository;
• and
• via the compositional key, providing a plurality of federated entity (FE) computer systems with access to the biometric repository
• receiving a request for biometric verification of an unverified individual from an FE computer system, the request comprising a representation that the unverified individual has an assigned compositional key that is not known, the request comprising PII;
• building, via the PII from the request, a candidate compositional key;
• identifying one or more compositional keys in the biometric repository that at least partially match the candidate compositional key;
• and
• verifying a biometric sample for the individual against a biometric print associated with each of the one or more compositional keys.