Future Directions for Secure IoT Frameworks: Insights from Blockchain-Based Solutions: A Comprehensive Review and Future Analysis

The main aim of this research is to provide a methodical review of secure frameworks in IoT using blockchain technology. Because of its decentralized security and resistance to attacks, blockchain has emerged as a possible solution to the growing need for secure data transmission in IoT. The work also gives comprehensive look at several algorithms comprising FIEO, Consensus algorithm, RSA asymmetric key algorithm and hash algorithms; and relative frameworks like Ethereum, CoSMOS, Hyperledger Fabric, and RTS-DELM system model. The assessment and analysis were made with reference to the following parameters, which embraced the parametric evaluation of these methodologies. Aided by the analysis of various frameworks, the paper assesses opportunities and dimensions, and in doing so, covers new issues and solutions with analysis in detail. Additional recommendations for the enhancement of IoT devices on blockchain based quality and performance are also outlined. In sum, this research contributes towards the identification of secure frameworks using blockchain technology in IoT systems and provides valuable information regarding future opportunities in this kind of industry.