Fingerprints are not stored as images but as mathematical representations or encrypted biometric keys. This means that the actual fingerprint image is not saved; only a unique code representing its characteristics is retained.
Here's how it works:
- Scanning: When you register a fingerprint, a sensor captures an image of your finger.
- Processing: The captured image is processed and converted into a unique biometric template. This template contains information about the fingerprint's unique characteristics, like the location of ridges, whorls, and other details.
- Encryption & Storage: This biometric template is then encrypted and stored securely on the device or server, depending on the system.
- Verification: When you try to authenticate using your fingerprint, the sensor captures a new image, processes it, and compares it to the stored template. If the two match, access is granted.
Here are some examples of how fingerprints are stored in different devices:
- Mobile Phones: Fingerprint data is generally stored on the device itself within a secure enclave, not in the cloud.
- TimeMoto Cloud: No fingerprints are stored on the TimeMoto Cloud servers. Instead, encrypted and non-traceable codes are kept on individual clockings.
- Windows Hello: Fingerprint hashes, not the actual fingerprint data, are stored in a secure area of the device, making it more secure than storing a simple password.
Key Points to Remember:
- Security: The encryption and storage of fingerprint data is essential to prevent unauthorized access and ensure privacy.
- No Image Storage: The actual fingerprint image is not stored, only the biometric template or encrypted key.
- Limited Access: Access to this data is restricted to the device or system where it was registered.
