TCON A lightweight Trust dependent Consensus framework for blockchain
The consensus algorithm played a significant role in successful adoption of Blockchain technology. The security of bitcoin blockchain hugely depends on the complexity and reliability of the Proof of Work (PoW) consensus. However, a non financial application, whose security requirements are less demanding, requires faster operation and so PoW is not suitable for many of the commercial applications. In this paper, we propose a lightweight Trust dependent Consensus scheme (TCON) for a blockchain based IoT access control framework. TCON ensures that the blocks are added at a faster rate, spending minimal energy compared to PoW based systems. To the best of our knowledge, this is the first time the notion of trust is quantified and used as a means to simplify the consensus problem in blockchain. A comparison of the various metrics to understand the differences in overhead involved suggest that the proposed scheme outperforms other non trust based consensus schemes.
2019 11th International Conference on Communication Systems Networks (COMSNETS)