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: SensorNode.hpp

Revision:
6:b6bafd0a7013
Parent:
1:e1c7c1c636af
Child:
8:594529956266
diff -r 63232ef22abe -r b6bafd0a7013 SensorNode.hpp
--- a/SensorNode.hpp	Wed Apr 20 20:13:33 2016 +0000
+++ b/SensorNode.hpp	Thu May 12 14:40:14 2016 -0500
@@ -34,16 +34,19 @@
 #ifndef _SENSORNODE_HPP
 #define _SENSORNODE_HPP
 
-#include <cstdint>
+#include <stdint.h>
 #include <cstring>
 
 #include "DS7505.hpp"
 #include "MAX44009.hpp"
-#include "OneWire_Memory/Authenticators/DS28E15_22_25/DS28E15_22_25.hpp"
+#include "Authenticators/DS28E15_22_25/DS28E15_22_25.h"
 
-class DS2465;
-class RomId;
 class SensorData;
+namespace OneWire
+{
+  class RomId;
+  namespace Masters { class DS2465; }
+}
 namespace mbed { class I2C; }
 
 /// Interface to the Authenticated Sensor Node peripheral board.
@@ -62,7 +65,7 @@
   /// @param ds7505_i2c_addr I2C bus address of the DS7505 in mbed format.
   /// @param max44009_i2c_addr I2C bus address of the MAX44009 in mbed format.
   /// @param ds2465 Interface to DS2465 on the Controller.
-  SensorNode(mbed::I2C & i2c, std::uint8_t ds7505_i2c_addr, std::uint8_t max44009_i2c_addr, DS2465 & ds2465);
+  SensorNode(mbed::I2C & i2c, uint8_t ds7505_i2c_addr, uint8_t max44009_i2c_addr, OneWire::Masters::DS2465 & ds2465);
   
   /// Detect if an authentic Sensor Node is connected.
   /// @param userEntropy Additional entropy to supply to the RNG.
@@ -81,7 +84,7 @@
   bool readSensorData(SensorData & sensorData);
   
   /// Get the ROM ID for this sensor node.
-  const RomId & romId() const { return ds28e15_22_25.romId; }
+  const OneWire::RomId & romId() const { return ds28e15_22_25.romId; }
   
   /// Get the initial lux measurement for this sensor node.
   double initialLux() const { return m_initialLux; }
@@ -93,9 +96,9 @@
   /// Authenticated data stored in DS28E15.
   struct AuthData
   {
-    static const std::uint8_t initialFilterLife = 100;
-    DS28E15_22_25::Segment segment;
-    std::uint8_t & filterLife;
+    static const uint8_t initialFilterLife = 100;
+    OneWire::Authenticators::DS28E15_22_25::Segment segment;
+    uint8_t & filterLife;
     unsigned int pageNum, segmentNum;
     
     AuthData() : filterLife(segment[0]), pageNum(0), segmentNum(0) { reset(); }
@@ -108,7 +111,7 @@
   };
   
   /// Padding value used in creation of the Slave Secret.
-  static const std::uint8_t defaultPaddingByte = 0x00;
+  static const uint8_t defaultPaddingByte = 0x00;
   
   /// Indicates hardware RNG is initialized.
   static bool rngInitialized;
@@ -123,10 +126,10 @@
   AuthData authData;
   
   // Hardware interfaces
-  DS28E15_22_25 ds28e15_22_25; ///< DS28E15 for authentication.
+  OneWire::Authenticators::DS28E15_22_25 ds28e15_22_25; ///< DS28E15 for authentication.
   DS7505 ds7505; ///< DS7505 temperature sensor.
   MAX44009 max44009; ///< MAX44009 optical light sensor.
-  DS2465 & ds2465; ///< Interface to DS2465 on Controller.
+  OneWire::Masters::DS2465 & ds2465; ///< Interface to DS2465 on Controller.
   
   /// Initialize sensors for measurement.
   /// @returns True on success.