US Patent 11757869 Biometric signature authentication and centralized storage system

A biometric authentication system may include a centralized database including stored biometric signature information for authenticating a user of one or more external systems. The biometric authentication system may extract data attributes from a biometric signature of the user and compare them to the stored biometric signature information in the database. The biometric authentication system may identify user identifier information associated with a signature key stored of the stored biometric signature information that matches the data attributes to authenticate the user to access secure information.