It always surprises me that Apple has done little to develop its Magic keyboard beyond adding a fingerprint sensor for unlocking your Mac. For a keyboard with membrane switches rather than ...

The primary components are the fingerprint sensor and Microsoft’s Secure Device Connection Protocol (SDCP), with the latter tasked with securing the (USB) connection between the sensor and the host.

The final value generated by the sensor is compared to a value stored in the Secure Enclave. If it matches one of the stored values, then the fingerprint ... a Touch ID keyboard, but it is always ...