Maxim Integrated / Mbed 2 deprecated DeepCover Embedded Security in IoT

MAXREFDES143#: DeepCover Embedded Security in IoT Authenticated Sensing & Notification

Dependencies:   MaximInterface mbed

The MAXREFDES143# is an Internet of Things (IoT) embedded security reference design, built to protect an industrial sensing node by means of authentication and notification to a web server. The hardware includes a peripheral module representing a protected sensor node monitoring operating temperature and remaining life of a filter (simulated through ambient light sensing) and an mbed shield representing a controller node responsible for monitoring one or more sensor nodes. The design is hierarchical with each controller node communicating data from connected sensor nodes to a web server that maintains a centralized log and dispatches notifications as necessary. The mbed shield contains a Wi-Fi module, a DS2465 coprocessor with 1-Wire® master function, an LCD, LEDs, and pushbuttons. The protected sensor node contains a DS28E15 authenticator, a DS7505 temperature sensor, and a MAX44009 light sensor. The mbed shield communicates to a web server by the onboard Wi-Fi module and to the protected sensor node with I2C and 1-Wire. The MAXREFDES143# is equipped with a standard shield connector for immediate testing using an mbed board such as the MAX32600MBED#. The simplicity of this design enables rapid integration into any star-topology IoT network requiring the heightened security with low overhead provided by the SHA-256 symmetric-key algorithm.

More information about the MAXREFDES143# is available on the Maxim Integrated website.

--- a/common.cpp	Mon Aug 15 13:59:17 2016 +0000
+++ b/common.cpp	Tue Sep 06 11:33:14 2016 -0500
@@ -31,6 +31,7 @@
 *******************************************************************************
 */
 
+#include <stdio.h>
 #include "common.hpp"
 
 const size_t charsPerByte = 2;
@@ -48,7 +49,7 @@
   char hexBuf[charsPerByte + 1];
   for (size_t i = 0; i < byteArraySize; i++)
   {
-    std::snprintf(hexBuf, (sizeof(hexBuf) / sizeof(hexBuf[0])), "%2.2X", byteArray[i]);
+    snprintf(hexBuf, (sizeof(hexBuf) / sizeof(hexBuf[0])), "%2.2X", byteArray[i]);
     hexString.append(hexBuf, charsPerByte);
   }
 }
\ No newline at end of file