Blockchain Mechanism and Symmetric Encryption in A Wireless Sensor Network.

Area of Science:

• Computer Science
• Cybersecurity
• Network Engineering

Background:

• The Internet of Things (IoT) paradigm connects millions of devices, leading to exponential growth in security risks and attacks.
• Centralized IoT systems face greater vulnerabilities, particularly during data transmission and inter-organizational sharing.
• Ensuring security, privacy, reliability, and autonomy is critical for secure IoT system functionality.

Purpose of the Study:

• To present a decentralized system design for enhancing the autonomy and security of IoT infrastructures.
• To leverage blockchain technology and cryptographic tools for robust data integrity and availability.
• To mitigate risks associated with centralized IoT systems and protect against malicious use.

Main Methods:

• Development of a decentralized IoT system architecture.
• Integration of blockchain technology for secure data management.
• Utilization of cryptographic tools to safeguard information exchange.
• Validation through a temperature and humidity sensing IoT-based Wireless Sensor Network (WSN).

Main Results:

• The proposed system demonstrates autonomy, security, privacy, and reliability in data sharing and transmission.
• The methodology effectively protects data integrity and availability within the IoT infrastructure.
• Empirical results confirm the system's fulfillment of core IoT requirements.
• The system exhibits reduced susceptibility to common IoT attacks like Man-in-the-Middle and DDoS.

Conclusions:

• The decentralized blockchain-based IoT system effectively enhances security, privacy, and autonomy.
• The proposed methodology provides a reliable solution for protecting IoT data integrity and availability.
• This approach offers improved resilience against prevalent cyber threats in IoT environments.