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.cpp

Revision:
7:e24f0b29f1f7
Parent:
6:b6bafd0a7013
Child:
8:594529956266
diff -r b6bafd0a7013 -r e24f0b29f1f7 SensorNode.cpp
--- a/SensorNode.cpp	Thu May 12 14:40:14 2016 -0500
+++ b/SensorNode.cpp	Fri May 13 14:54:04 2016 -0500
@@ -101,7 +101,7 @@
   bool result;
   
   // Select device through Skip ROM
-  result = (ds2465.OWSkipROM() == OneWireMaster::Success);
+  result = (ds2465.OWSkipRom() == OneWireMaster::Success);
   if (result)
     result = (ds28e15_22_25.readBlockProtection(0, protectionStatus) == OneWireSlave::Success);
   if (result)
@@ -109,7 +109,7 @@
     if (!protectionStatus.noProtection())
     {
       // Select device through Skip ROM
-      result = (ds2465.OWSkipROM() == OneWireMaster::Success);
+      result = (ds2465.OWSkipRom() == OneWireMaster::Success);
       if (result)
         result = (ds28e15_22_25.readSegment(authData.pageNum, authData.segmentNum, authData.segment) == OneWireSlave::Success);
       if (result)
@@ -129,7 +129,7 @@
   DS28E15_22_25::Page pageData;
   
   // Select device through Skip ROM
-  if (ds2465.OWSkipROM() != OneWireMaster::Success)
+  if (ds2465.OWSkipRom() != OneWireMaster::Success)
     return false;
   // Read page data
   if (ds28e15_22_25.readPage(authData.pageNum, pageData, false) != OneWireSlave::Success)
@@ -152,13 +152,13 @@
   }
 
   // Select device through Skip ROM
-  if (ds2465.OWSkipROM() != OneWireMaster::Success)
+  if (ds2465.OWSkipRom() != OneWireMaster::Success)
     return false;
   // Write challenge to scratchpad
   if (ds28e15_22_25.writeScratchpad(challenge) != OneWireSlave::Success)
     return false;
   // Select device through Skip ROM
-  if (ds2465.OWSkipROM() != OneWireMaster::Success)
+  if (ds2465.OWSkipRom() != OneWireMaster::Success)
     return false;
   // Have device compute MAC
   DS28E15_22_25::Mac nodeMac;
@@ -210,7 +210,7 @@
     AuthData oldAuthData(authData);
     authData.filterLife = sensorData.filterLife;
     // Select device through Skip ROM
-    result = (ds2465.OWSkipROM() == OneWireMaster::Success);
+    result = (ds2465.OWSkipRom() == OneWireMaster::Success);
     // Write new filter life to DS28E15
     if (result)
       result = (ds28e15_22_25.writeAuthSegment(ds2465, authData.pageNum, authData.segmentNum, authData.segment, oldAuthData.segment, false) == OneWireSlave::Success);
@@ -223,9 +223,9 @@
 {
   bool provisioned;
   
-  ds2465.OWSetSpeed(DS2465::SPEED_OVERDRIVE);
+  ds2465.OWSetSpeed(DS2465::OverdriveSpeed);
   
-  if (ds2465.OWReadROM(ds28e15_22_25.romId) != OneWireMaster::Success)
+  if (ds2465.OWReadRom(ds28e15_22_25.romId) != OneWireMaster::Success)
     return UnableToCommunicate;
   
   if (!checkProvisioned(provisioned))
@@ -248,7 +248,7 @@
 
 SensorNode::State SensorNode::authenticatedReadSensorData(unsigned int userEntropy, SensorData & sensorData)
 {
-  ds2465.OWSetSpeed(DS2465::SPEED_OVERDRIVE);
+  ds2465.OWSetSpeed(DS2465::OverdriveSpeed);
   
   if (!setSecret())
     return UnableToCommunicate;