I have android application and backend is .NET site.
I have already enrolled my users with FingerPrints using Hampster Fingkey Scanner and stored their finger prints in Server.
Is there any ways using I can get FingerPrint and send that data to server and match in my SQL DB from Android ?
is this possible ?
I don't think you can access the actual fingerprint. If you could, any malicious app with access to the fingerprint scanner could steal a very private piece of information (which could potentially be used for identity theft, let alone frame you for a crime you did not commit).
I know that this is Android and not iOS, but I still think it's relevant to read and think about what Apple has to say about security and privacy for its Touch ID technology:
Touch ID doesn't store any images of your fingerprint. It stores only a mathematical representation of your fingerprint. It isn't possible for someone to reverse engineer your actual fingerprint image from this mathematical representation. The chip in your device also includes an advanced security architecture called the Secure Enclave which was developed to protect passcode and fingerprint data. Fingerprint data is encrypted and protected with a key available only to the Secure Enclave. Fingerprint data is used only by the Secure Enclave to verify that your fingerprint matches the enrolled fingerprint data. The Secure Enclave is walled off from the rest of the chip and the rest of iOS. Therefore, iOS and other apps never access your fingerprint data, it's never stored on Apple servers, and it's never backed up to iCloud or anywhere else. Only Touch ID uses it, and it can't be used to match against other fingerprint databases.
Do you really need to compare actual fingerprints? Wouldn't it be sufficient to compare a set of secrets guarded by the fingerprint scanners? If you can indeed just compare secrets guarded by the fingerprint scanners, this SO answer will probably guide you towards a solution.
