Patent ID: 11909854
Assignee: THE GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF HOMELAND SECURITY
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC G  H

Claim 19:
20. A method comprising:
storing homomorphic encrypted (HE) biometric information in a reference gallery;
providing HE biometric matching logic, and an access control device;
generating biometric information to store in the reference gallery with a kiosk comprising a scanner;
scanning a user and generating biometric information for identifying the user;
generating HE encrypted information containing biometric data using an HE encryption algorithm;
storing the generated HE encrypted biometric information in a library;
distributing the HE encrypted biometric information to a third-party computer; the third-party computer comprising HE Biometric matching logic;
based on the reference gallery, constructing HE encrypted reference information using HE encryption logic;
the HE Encryption logic storing HE encrypted information in the reference gallery;
the third-party computer performing a HE biometric matching process using the HE biometric matching logic;
the HE biometric matching logic performing a matching comparison of the HE encrypted information from the library against HE encrypted biometric information in the reference gallery to identify matching HE encrypted reference information;
the HE biometric matching logic performing the HE biometric matching process without decrypting or having a capacity to decrypt the HE encrypted information;
the third-party computer processing biometric information used for biometric matching, without access to underlying biometric information of the user;
the third-party computer transmitting a message to the access control device;
the access control device executing an access granted process when the message indicates a positive match based on the matching comparison; and
the access control device executing an access denied process when the message does not indicate a positive match based on the matching comparison.