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.

diff -r 6bce01c1dd90 -r 41be4896ed6d SensorNode.cpp
--- a/SensorNode.cpp	Wed Jun 15 15:16:15 2016 -0500
+++ b/SensorNode.cpp	Thu Jul 21 11:06:13 2016 -0500
@@ -34,6 +34,7 @@
 #include "SensorNode.hpp"
 #include "common.hpp"
 #include "Masters/DS2465/DS2465.h"
+#include "RomId/RomCommands.h"
 #include "I2C.h"
 
 #ifdef TARGET_MAX32600
@@ -45,6 +46,7 @@
 #endif
 
 using namespace OneWire;
+using namespace OneWire::RomCommands;
 
 bool SensorNode::rngInitialized = false;
 
@@ -205,7 +207,7 @@
   ds2465.OWSetSpeed(DS2465::OverdriveSpeed);
   
   RomId romId;
-  if (ds2465.OWReadRom(romId) != OneWireMaster::Success)
+  if (OWReadRom(ds2465, romId) != OneWireMaster::Success)
     return UnableToCommunicate;
   ds28e15_22_25.setRomId(romId);