A Game-Based Approach for Mitigating the Sybil Attacks on Blockchain Applications

The data explosion of this digital century encourages the necessity of data security and maintaining privacy. The generated data through online transactions in different sectors have been increased a million times. Therefore, the trustful transaction and reliability of data became necessary for its analysis and future use in the online platform. The change of data platform from a centralized to distributed nature enhances the utility of the data use, and the security threats are also increased side by side. The Sybil attack is one of the significant security threats in the distributed network environment. Blockchain is a peer-to-peer distributed ledger that works in a distributed environment. However, the blockchain framework, which aims to provide tamper-proof security on data suffers from Sybil attacks too. This paper aims to analyze the implementation of blockchain technology in different applications and propose a new game-based model to effectively detect and mitigate Sybil attacks on the blockchain.