OPTCHAIN: AN ADVANCED OPTIMIZATION METHOD FOR ENHANCING IOT DATA SECURITY VIA BLOCKCHAIN

Abstract

The increased use of IoT devices in various domains generates abundant data traffic. Securing this data during transfer and storage is essential. Blockchain is now a trending technology to provide security to the data. However, it is observed that blockchain performs poorly while managing large volume data.   To mitigate this issue, an advanced Optchain method to reduce the data size before submitting it to the blockchain network is introduced in this paper. This method first classifies data as relevant and irrelevant and then applies compression to the appropriate data to reduce size. This reduces storage requirements, improves processing efficiency, ensures faster transactions, and lowers cost. The proposed method is tested for healthcare IoT data. Compared to current systems, the evaluation findings of the suggested solution show a notable reduction in data size. As data is reduced, it is easily managed by the blockchain network. Thus, the proposed Optchain method provides better security to the IoT-generated data.