Enhancing Security in ZigBee Wireless Sensor Networks: A New Approach and Mutual Authentication Scheme for D2D...

Area of Science:

• Computer Science
• Electrical Engineering
• Cybersecurity

Background:

• ZigBee protocol offers low power and flexibility but faces persistent security vulnerabilities.
• Constrained wireless sensor network devices cannot use resource-intensive asymmetric cryptography.
• Existing Advanced Encryption Standard (AES) in ZigBee may become vulnerable, with symmetric cryptosystems facing key management and authentication issues.

Purpose of the Study:

• To propose a mutual authentication scheme for ZigBee communications in wireless sensor networks.
• To dynamically update secret keys for device-to-trust center (D2TC) and device-to-device (D2D) communications.
• To enhance cryptographic strength without relying on asymmetric cryptography.

Main Methods:

• Implemented a mutual authentication scheme using secure one-way hash and bitwise XOR operations for D2TC and D2D authentication.
• Developed a method for participants to agree on a shared session key post-authentication.
• Integrated a secure value with sensed data as input for AES encryption.

Main Results:

• The proposed scheme improves ZigBee's cryptographic strength by enhancing the AES encryption process.
• Dynamically updated secret keys enhance security for D2TC and D2D communications.
• Encrypted data achieves robust protection against cryptanalysis attacks.

Conclusions:

• The novel scheme effectively addresses security weaknesses in ZigBee communications.
• It provides enhanced security and efficiency compared to existing competitive schemes.
• The solution is suitable for resource-constrained wireless sensor networks.