Yet Another Component of The SOTA Framework
The third component of the SOTA framework is the remote programmer . It is responsible to get firmware from the user and send the firmware to target micro-controller in a secure way. It has a embedded TCP server to create connection with the communication module to send firmware packets to target micro-controller of IoT device. It supports a multi-device programming capability in a secure way by utilizing from JAVA Thread library and the AES 128 bit CBC symmetric encryption algorithm.
Currently, It can program ATMEL 8 Bit micro-controllers that has the SOTA bootloader over-the-air.
The remote programmer programs target micro-controllers in IoT device; therefore, most of The Remote Programmer's operations will be related reading firmware and sending firmware packets to target micro-controller.
Since it does not have user-friendly interface in it, you will need to compile project after adding your target micro-controllers.
JAVA Development Kit 8 or newer
Internet Access
The Remote Programmer is a Gradle based project, you can easliy import to your system. After copying project files into your system, you can run The Remote Programmer invoking following command in the terminal that is on same folder path.
./gradlew sotaRun
If you want to add your IoT device as a target device, you need to register your micro-controller of your IoT device as well as specifying location of new firmware.
main.addDevice("A427","10.109.189.0",SOTAGlobals.OTA_MODE.FULL_CONFIDENTIALITY_WITH_DEFAULT_INTEGRITY,SOTAGlobals.AUTH_MODE.ON,"/Blink.ino.hex");
The first argument is name of target IoT device, it helps to identify devices easily from device list set. The second argument is IP address of target device in string format.
The third argument, SOTAGlobals.OTA_MODE.FULL_CONFIDENTIALITY_WITH_DEFAULT_INTEGRITY* represents that the remote programmer encrypt over-the-air programming firmware packets to provide data integrity and confidentiality. Currently, The Remote Programmer supports only AES 128 Bit CBC symmetric encryption to provide data confidentiality also XOR based checksum is used for data integrity.
The fourth argument, SOTAGlobals.AUTH_MODE.ON* represents authentication module in The Remote Programmer enforces initiate authentication with micro-controller in IoT device. If user provides SOTAGlobals.AUTH_MODE.OFF, user will close authentication mechanism and entire over-the-air programming turns into vulnerable firmware update process.
The fifth argument is a location of new firmware in string format.
- Gradle - Dependecy Managment
- Apache Commons - Reusable JAVA Code
- Log4j - JAVA based logging utility
This project is licensed under the MIT License - see the LICENSE.md file for details
This is a open-source project, we appreciate any contribution from contributors. If you want to improve The SOTA Framework, feel free to fork and create pull request!