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: WebServerInterface.hpp
- Revision:
- 29:590a7561318b
- Parent:
- 28:e5cdaf13d299
- Child:
- 32:0a09505a656d
--- a/WebServerInterface.hpp Thu Jan 26 14:18:21 2017 -0600 +++ b/WebServerInterface.hpp Thu Jan 26 16:55:23 2017 -0600 @@ -46,7 +46,7 @@ namespace mbed { class Serial; } namespace OneWire { class ISha256MacCoproc; } -class NetworkStack; +class ESP8266; struct SensorData; /// Network interface to the web server supporting authenticated posting of event @@ -56,7 +56,11 @@ public: /// @param esp8266 Interface to ESP8266 for Wi-Fi access. /// @param pc Optional serial interface for received web traffic. - WebServerInterface(NetworkStack & networkStack) : networkStack(networkStack) { } + WebServerInterface(ESP8266 & esp8266) : esp8266(esp8266) { } + + /// Initialize network interface and connect to access point. + /// @returns True on success. + bool initialize(); /// Send an authenticated event message to the web server. /// @param macCoProc Coprocessor such as the DS2465 used to calculate the authentication MAC. @@ -81,6 +85,8 @@ private: /// @{ /// Configuration strings. + static const char wifiSsid[]; + static const char wifiPassword[]; static const char serverAddress[]; static const unsigned int serverPort; static const char serverPostPath[]; @@ -90,9 +96,7 @@ OneWire::RomId m_sessionId; std::string m_sessionIdString; - NetworkStack & networkStack; - - char recvBuf[1024]; + ESP8266 & esp8266; }; #endif \ No newline at end of file