The rapid growth of IoT capabilities for industrial applications comes with legitimate concerns about data integrity, due to deliberate corruption of critical sensor data anywhere between a source and the cloud. The reference design’s sophisticated architecture and components, Arduino-compatible hardware interface and ARM mbed libraries support simplifies development of secure, uncorrupted, and authenticated sensor-to-web data. It is suited for analogue sensor node and data authentication in factory automation and industrial processing applications.
The reference design’s two-stage hierarchical architecture consists of a shield that communicates to a web server and a protected sensor node for data acquisition and authentication. The shield includes a WiFi module; a DS2465 secure coprocessor for offloading SHA-256 cryptographic computation; 1-Wire and I²C interfaces; user-interface LCD, LEDs and pushbuttons; along with alarm and logging functions. The sensor node contains a DS28E15 secure authenticator, DS7505 temperature sensor and MAX44009 light sensor.
Scott Jones, Executive Director, Embedded Security, Maxim Integrated, commented: “The reference design is a powerful, much-needed tool for addressing the genuine issues of data security and authentication for Industrial IoT installations. The reference design combines the shield and sensor node to offer a solution with a high level of security and minimal development start-up effort and with low system-overhead burden.”
The MAXREFDES143# IoT embedded security reference design is available for $75.