Secure communications for sensor data

A data transfer device for communicating secure data from a sensor, comprising:

• at least one sensor configured to generate sensor data;
• a security engine configured to generate a key;
• a hardware interface configured to couple with the at least one sensor and receive the sensor data, and configured to generate a security signature using the key with the sensor data, and configured to send a first communication to a host device, the first communication comprising the sensor data combined with the security signature and the first communication is received by a communication interface of the host device;
• and
• a security enclave configured to receive the key from the security engine and to send a second communication to the host device, the second communication comprising the key and the second communication is received by an application layer of the host device;
• wherein either:
• the host device is configured to trust the sensor data when the security signature from the hardware interface matches a second security signature generated at the host device using the key from the security enclave with the sensor data received at the host device;
• or
• the host device is configured to discard the sensor data when the security signature from the hardware interface does not match a second security signature generated at the host device using the key from the security enclave with the sensor data received at the host device.