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Banking App - Coggle Diagram

- - - - Voice Biometrics Authentication
        
        Check against stored voiceprint
        
        Voice comparison
    - - User Registration and Enrolment
        
        Provides username
        
        Unique code is generated and associated with user
        
        Voice biometrics enrollment
        
        Voiceprint stored securely
        
        Customer signs up for banking app
    - - Sensitive Transaction Initiation
        
        System prompts for specific phrases
        
        Customer / Bank initiates sensitive transaction
        
        Captures voice samples
    - - Device Metadata Collection
        
        Collect Device meta data (GPS location, Timestamp, Device information)
    - - Digital Signature Generation
        
        Digital signature by combining voice recordings, metadata and sensitive transactions
    - - Metadata Validation
        
        Validate metadata including location and timestamp
    - - Transaction Verification
        
        Verify digital signature authenticity
        
        Confirm user identity
    - - Transaction Approval
        
        If both validated, approve transaction