Abstract
The project proposes an Edge-based Blockchain Secure Data Sharing Scheme (EBSDSS) to enhance the efficiency and security of data transmission between IoT devices, edge servers, and cloud servers, addressing latency and security concerns inherent in traditional cloud systems [1][6]. By utilizing edge servers that receive data directly from IoT devices, the scheme significantly reduces data transfer times, offering better performance in comparison to centralized cloud models [7][14]. The integration of Blockchain technology ensures data integrity and security by storing tamper-proof records through hash-based transactions, aligning with blockchainbased secure data sharing models in IoT environments [2][15]. To protect data, AES symmetric encryption is employed, while Local Sensitive Hashing (LSH) facilitates efficient and rapid searches across Blockchain-stored IoT data, ensuring quick access without compromising security [16][18]. Furthermore, a certificate-less signature scheme is introduced to verify the authenticity of IoT devices and the data they share, reducing the need for complex certificate management [12][13]. Shamir’s secret sharing scheme is used to enhance the security of cryptographic keys, ensuring that sensitive data is securely shared and stored, which aligns with previous work on data security and privacy in IoT systems [3][5]. As an extension, the project introduces two enhancements: the use of Elliptic Curve Cryptography (ECC) for more efficient encryption, ensuring stronger security with smaller key sizes [4][19], and the implementation of cache memory to accelerate LSH search operations, reducing the need for repeated searches for identical queries [17]. This innovative approach not only improves the overall efficiency and security of IoT data sharing but also paves the way for more resilient and responsive IoT applications across various domains such as industrial IoT, healthcare, and smart cities [20][8].
Published Version
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