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.

Revision:
6:b6bafd0a7013
Parent:
2:e67d29a371db
Child:
7:e24f0b29f1f7
--- a/Factory.cpp	Wed Apr 20 20:13:33 2016 +0000
+++ b/Factory.cpp	Thu May 12 14:40:14 2016 -0500
@@ -34,18 +34,24 @@
 #include "Factory.hpp"
 #include "SensorNode.hpp"
 #include "common.hpp"
-#include "OneWire_Masters/DS2465/DS2465.hpp"
-#include "OneWire_Memory/Authenticators/DS28E15_22_25/DS28E15_22_25.hpp"
-#include "mbed.h"
+#include "Masters/DS2465/DS2465.h"
+#include "Authenticators/DS28E15_22_25/DS28E15_22_25.h"
+#include "wait_api.h"
 
-const std::uint8_t Factory::masterSecret[] = { 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x21,
+using OneWire::Masters::OneWireMaster;
+using OneWire::Masters::DS2465;
+using OneWire::OneWireSlave;
+using OneWire::Authenticators::DS28E15_22_25;
+using OneWire::Authenticators::ISha256MacCoproc;
+
+const uint8_t Factory::masterSecret[] = { 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x21,
                                               0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F, 0x31, 0x32 };
-const std::uint8_t Factory::invalidMasterSecret[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+const uint8_t Factory::invalidMasterSecret[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                                                      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
 
 bool Factory::provision(DS2465 & ds2465)
 {
-  bool result = (ds2465.setMasterSecret(masterSecret) == ISha256MacCoprocessor::Success);
+  bool result = (ds2465.setMasterSecret(masterSecret) == ISha256MacCoproc::Success);
   if (result)
   {
     SensorNode::AuthData authData;
@@ -124,7 +130,7 @@
     result = (sensorNode.ds28e15_22_25.computeSecret(sensorNode.authData.pageNum, false) == OneWireSlave::Success);
   // Configure slave secret on DS2465
   if (result)
-    result = (DS28E15_22_25::computeNextSecret(sensorNode.ds2465, pageData, sensorNode.authData.pageNum, partialSecret, sensorNode.ds28e15_22_25.romId, sensorNode.ds28e15_22_25.manId) == ISha256MacCoprocessor::Success);
+    result = (DS28E15_22_25::computeNextSecret(sensorNode.ds2465, pageData, sensorNode.authData.pageNum, partialSecret, sensorNode.ds28e15_22_25.romId, sensorNode.ds28e15_22_25.manId) == ISha256MacCoproc::Success);
   // Select device through Skip ROM
   if (result)
     result = (sensorNode.ds2465.OWSkipROM() == OneWireMaster::Success);
@@ -139,7 +145,7 @@
   {
     DS28E15_22_25::Segment blankSegment;
     std::memset(blankSegment, SensorNode::defaultPaddingByte, blankSegment.length);
-    for (std::size_t i = 0; i < DS28E15_22_25::segmentsPerPage; i++)
+    for (size_t i = 0; i < DS28E15_22_25::segmentsPerPage; i++)
     {
       result = (sensorNode.ds2465.OWSkipROM() == OneWireMaster::Success);
       if (result)
@@ -185,7 +191,7 @@
     result = (sensorNode.ds28e15_22_25.computeSecret(sensorNode.authData.pageNum, false) == OneWireSlave::Success);
   // Configure slave secret on DS2465
   if (result)
-    result = (DS28E15_22_25::computeNextSecret(sensorNode.ds2465, pageData, sensorNode.authData.pageNum, partialSecret, sensorNode.ds28e15_22_25.romId, sensorNode.ds28e15_22_25.manId) == ISha256MacCoprocessor::Success);
+    result = (DS28E15_22_25::computeNextSecret(sensorNode.ds2465, pageData, sensorNode.authData.pageNum, partialSecret, sensorNode.ds28e15_22_25.romId, sensorNode.ds28e15_22_25.manId) == ISha256MacCoproc::Success);
 
   return result;
 }
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