Patent ID: 11956324
Assignee: STMICROELECTRONICS S.R.L.
Field: Digital communication (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 13:
14. An integrated sensor device, comprising:
sensing circuitry integrated into a chip, wherein the sensing circuitry, in operation, generates sensor data related to one or more physical conditions;
processing circuitry integrated into the chip and coupled to the sensing circuitry; and
encryption circuitry integrated into the chip, wherein
the processing circuitry, in operation, processes received sensor-session requests and received sensor-service requests of an application executing on a host processor, wherein the processing a received sensor-service request includes:
receiving the sensor-service request in clear text from the host processor;
determining a type of the received sensor-service request;
in response to determining the received sensor-service request is of a first type:
generating first results information in response to the received sensor-service request of the first type based on generated sensor data; and
transmitting the first results information to the host processor in clear text; and

in response to determining the received sensor-service request is of a second type:
initiating remote-server processing based on the received sensor-service request of the second type, wherein the initiating comprises encrypting, by the encryption circuitry, a communication directed to a remote server, and sending the encrypted communication to the remote server via the host processor, without decrypting of the encrypted communication by the host processor;
generating second results information in response to the received sensor-service request of the second type based on a received response to the initiated remote-server processing; and
transmitting the second results information to the host processor in clear; and

the encryption circuitry, in operation, encrypts communications from the integrated sensor device to the remote server and decrypts communications from the remote server to the integrated sensor device to prevent access by the host processor to communications between the integrated sensor device and the remote server, wherein, in operation, the encrypted communications are transmitted between the integrated sensor device and the remote server via the application executing on the host processor.