End-to-End Self-organizing Intelligent Security Model for Wireless Sensor Network based on a Hybrid (AES–RSA) Cryptography

In wireless sensor networks, ensuring data confidentiality and integrity is paramount, particularly in sensitive environments. However, existing encryption methods encounter challenges, including key maintenance in symmetric encryption and lower security levels in asymmetric encryption. To address these issues, this paper proposes a novel security protocol employing a hybrid encryption approach, combining both symmetric (AES) and asymmetric (RSA) cryptographic techniques. The protocol introduces a two-phase cryptographic technique utilizing AES for robust encryption in Phase 1 and RSA for efficient key management in Phase 2. Experimental results demonstrate enhanced efficiency in encryption, decryption, and total execution time compared to existing algorithms, marking a significant advancement in cryptographic protocols for improved security in data transmission and management. Key contributions include the division of plaintext for simplified cryptographic processing, AES encryption for Phase 1, RSA encryption for Phase 2, and a seamless decryption process ensuring data integrity and security against attacks.