Secure Data Sharing Using Enhanced Attribute Based Encryption for Blockchain Technology

Sharing data safely and securely is the need of the hour in many industrial sectors where large volumes of data are generated and shared over the internet. Conventional data sharing schemes rely on centralized storage platform with definite third-party access control mechanism. Hence, it is prone to single point failure, malicious attacks, poor transaction transparency, etc. Advancements in cryptography and blockchain technology are revolutionizing the rapidly growing information systems sector. However, the real-time deployment of blockchain technology encounters many problems such as storage explosion, data leakage problem, etc. An additional layer of encryption can overcome the problem of data leakage. In order to address these issues, this paper presents an Enhanced Attribute Based Encryption (EABE) scheme with lightweight optimal key generation for blockchain technology to improve the security and traceability of shared data. The data is encrypted using Enhanced Attribute Based Encryption (EABE). The underlying key generation step is optimized using bio-inspired metaheuristic optimization algorithms such as Green Anaconda Optimization with Improved Black Widow Optimization (GAO-IBWO). Thus, the proposed EABE scheme forms an additional layer of security for blockchain technology with lightweight optimal key generation.