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: Factory.cpp

Revision:
18:6fbf7e7b6ab6
Parent:
16:6bce01c1dd90
Child:
25:37ea43ff81be
--- a/Factory.cpp	Thu Jul 21 11:06:13 2016 -0500
+++ b/Factory.cpp	Wed Aug 10 08:19:00 2016 -0500
@@ -78,16 +78,16 @@
   DS28E15_22_25::BlockProtection protectionStatus;
   bool result;
   // Read block protections
-  result = (sensorNode.ds28e15_22_25.readBlockProtection(blockNum, protectionStatus) == OneWireSlave::Success);
+  result = (sensorNode.ds28e15.readBlockProtection(blockNum, protectionStatus) == OneWireSlave::Success);
   // Check if invalid protections are set
   if (result)
     result = ((protectionStatus.statusByte() & ~(desiredProtection.statusByte())) == 0x00);
   // Load secret into scratchpad
   if (result)
-    result = (sensorNode.ds28e15_22_25.writeScratchpad(validSecret ? masterSecret : invalidMasterSecret) == OneWireSlave::Success);
+    result = (sensorNode.ds28e15.writeScratchpad(validSecret ? masterSecret : invalidMasterSecret) == OneWireSlave::Success);
   // Load master secret from scratchpad without locking
   if (result)
-    result = (sensorNode.ds28e15_22_25.loadSecret(false) == OneWireSlave::Success);
+    result = (sensorNode.ds28e15.loadSecret(false) == OneWireSlave::Success);
   
   // Setup is complete if not using a valid secret
   if (!validSecret)
@@ -100,19 +100,19 @@
   
   // Read page data
   if (result)
-    result = (sensorNode.ds28e15_22_25.readPage(sensorNode.authData.pageNum, pageData, false) == OneWireSlave::Success);
+    result = (sensorNode.ds28e15.readPage(sensorNode.authData.pageNum, pageData, false) == OneWireSlave::Success);
   // Load partial secret into scratchpad
   if (result)
-    result = (sensorNode.ds28e15_22_25.writeScratchpad(partialSecret) == OneWireSlave::Success);
+    result = (sensorNode.ds28e15.writeScratchpad(partialSecret) == OneWireSlave::Success);
   // Compute secret
   if (result)
-    result = (sensorNode.ds28e15_22_25.computeSecret(sensorNode.authData.pageNum, false) == OneWireSlave::Success);
+    result = (sensorNode.ds28e15.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()) == ISha256MacCoproc::Success);
+    result = (DS28E15_22_25::computeNextSecret(sensorNode.ds2465, pageData, sensorNode.authData.pageNum, partialSecret, sensorNode.ds28e15.romId(), sensorNode.ds28e15.manId()) == ISha256MacCoproc::Success);
   // Enable authentication protection if not set
   if (result && (protectionStatus != desiredProtection))
-    result = (sensorNode.ds28e15_22_25.writeAuthBlockProtection(sensorNode.ds2465, desiredProtection, protectionStatus) == OneWireSlave::Success);
+    result = (sensorNode.ds28e15.writeAuthBlockProtection(sensorNode.ds2465, desiredProtection, protectionStatus) == OneWireSlave::Success);
   // Write initial filter life and set all other segments to default value
   if (result)
   {
@@ -120,7 +120,7 @@
     std::memset(blankSegment, SensorNode::defaultPaddingByte, blankSegment.length);
     for (size_t i = 0; i < DS28E15_22_25::segmentsPerPage; i++)
     {
-      result = (sensorNode.ds28e15_22_25.writeAuthSegment(sensorNode.ds2465, sensorNode.authData.pageNum, i,
+      result = (sensorNode.ds28e15.writeAuthSegment(sensorNode.ds2465, sensorNode.authData.pageNum, i,
                                                           ((i == sensorNode.authData.segmentNum) ? sensorNode.authData.segment : blankSegment),
                                                           pageData.toSegment(i), false) == OneWireSlave::Success);
       
@@ -132,22 +132,22 @@
   // Reload secret with known page values
   // Load master secret into scratchpad
   if (result)
-    result = (sensorNode.ds28e15_22_25.writeScratchpad(masterSecret) == OneWireSlave::Success);
+    result = (sensorNode.ds28e15.writeScratchpad(masterSecret) == OneWireSlave::Success);
   // Load master secret
   if (result)
-    result = (sensorNode.ds28e15_22_25.loadSecret(false) == OneWireSlave::Success);
+    result = (sensorNode.ds28e15.loadSecret(false) == OneWireSlave::Success);
   // Read page data
   if (result)
-    result = (sensorNode.ds28e15_22_25.readPage(sensorNode.authData.pageNum, pageData, false) == OneWireSlave::Success);
+    result = (sensorNode.ds28e15.readPage(sensorNode.authData.pageNum, pageData, false) == OneWireSlave::Success);
   // Write partial secret to scratchpad
   if (result)
-    result = (sensorNode.ds28e15_22_25.writeScratchpad(partialSecret) == OneWireSlave::Success);
+    result = (sensorNode.ds28e15.writeScratchpad(partialSecret) == OneWireSlave::Success);
   // Compute secret
   if (result)
-    result = (sensorNode.ds28e15_22_25.computeSecret(sensorNode.authData.pageNum, false) == OneWireSlave::Success);
+    result = (sensorNode.ds28e15.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()) == ISha256MacCoproc::Success);
+    result = (DS28E15_22_25::computeNextSecret(sensorNode.ds2465, pageData, sensorNode.authData.pageNum, partialSecret, sensorNode.ds28e15.romId(), sensorNode.ds28e15.manId()) == ISha256MacCoproc::Success);
 
   return result;
 }
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