Embedded security reference design eases public-key cryptography

March 09, 2017 // By Julien Happich
The MAXREFDES155# DeepCover embedded security reference design from Maxim Integrated Products uses elliptic curve digital signature algorithm (ECDSA) public-key cryptography ensure that sensor endpoints and controls are operated securely (by authenticating networked equipment and sensors).

The reference design makes it easy to develop devices that can authenticate and manage a sensing node with control and notification from a web server or network controller. Customers can quickly collect and display the authenticated sensor data, as well as monitor endpoints being updated via secure communications with the cloud. The MAXREFDES155# platform includes an Arduino form factor ARM mbed shield module and attached sensor endpoint. The shield contains a DS2476 DeepCover ECDSA/SHA-2 coprocessor, LCD, push-button controls, status LEDs and Wi-Fi communication. The sensor endpoint contains a DS28C36 DeepCover ECDSA/SHA-2 authenticator, IR thermal sensor, and aiming laser for the IR sensor. The reference design is equipped with a standard shield connector for immediate testing using an mbed board such as the MAX32600MBED#, the combination of these two devices represents an IoT node.
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