The rapid growth of the Internet of Things (IoT) demands robust yet lightweight cryptographic solutions to secure sensitive data on resource-constrained devices. This paper introduces the Hybrid Elliptic-AES Encryption (HEAE), a novel cryptographic framework that integrates AES-256’s robust symmetric encryption with Elliptic Curve Cryptography (ECC) for efficient key management. Unlike conventional hybrid approaches, HEAE innovates through a modified F-function with parallel processing, reducing execution time by 26% compared to RSA and 14% compared to DES for 5 MB datasets. Its lightweight design, optimized for IoT, achieves a 19% reduction in energy consumption compared to RSA and 6% compared to DES for 20 MB datasets. HEAE incorporates SHA-256 hashing for data integrity and is compatible with real-world IoT frameworks like LoRaWAN, Zigbee, and MQTT. Demonstrating resilience against chosen plaintext (CPA) and known plaintext (KPA) attacks, HEAE offers a scalable, energy-efficient, and secure solution tailored for IoT ecosystems, ensuring data confidentiality and system reliability.
Huan et al. (Thu,) studied this question.