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.

--- a/main.cpp	Tue Apr 19 21:20:52 2016 +0000
+++ b/main.cpp	Wed Apr 20 09:49:25 2016 -0500
@@ -462,10 +462,10 @@
   RomId romId;
   
   // Set register pointer
-  if (i2c.write(I2C_address, (const char *)&ROM_address, 1) != 0)
+  if (i2c.write(I2C_address, reinterpret_cast<const char *>(&ROM_address), 1) != 0)
     return false;
   // Read ROM ID
-  if (i2c.read(I2C_address, (char *)(&(static_cast<RomId::ByteBuffer &>(romId))), RomId::byteLen) != 0)
+  if (i2c.read(I2C_address, reinterpret_cast<char *>(&(static_cast<RomId::ByteBuffer &>(romId))), RomId::byteLen) != 0)
     return false;
   // Check if CRC valid
   if (!romId.crc8Valid())