Internet of Things Assisted Wireless Environment Monitoring System using Smart Sensors Supportivity
K. Sangeethalakshmi, S. Jai Ganesh, K. Devika Rani Dhivya, V. Kannagi, M. Rajkumar · 2022 International Conference on Electronics and Renewable Systems (ICEARS) · 2022
As with smartphones, the Internet of Things (IoT) is quickly becoming a hot topic in the IT world. Wireless Sensor Networks (WSNs) are now the primary technology for the Internet of Things (IoT). WSN security in an environmental monitoring system was explored in order to raise overall system security. We conducted our study in a temperature-controlled environment (STMS). According to our research, the password for the MSP430 MCU's bootstrap loader (BSL) is insecure. It just took us a few days to show that the BSL password could be cracked. The first time an attacker was able to get the WSN cryptographic keys from the system through reversing the firmware was also shown. Reverse engineering MSP430 firmware is shown in this example in a detailed manner. By presenting a solution, we were able to increase the security of the firmware in MSP430 processors. A random BSL password may be generated using our Secure-BSL application. Using our strategy, brute-force times may be obtained in a matter of decades. The unrealistic brute force time is essential in order to guarantee the firmware's security and prevent further attempts at reverse engineering. Our Secure-BSL software adds an extra layer of security by enabling two-factor authentication. The two-factor authentication capabilities of the MSP430 MCU may be used to set a user-defined password for additional MSP430 MCU security. Our results show that any security mechanisms inside a WSN are rendered worthless if an attacker gets access to sensor device firmware.