Blockchain for Cybersecurity: A Comprehensive Survey

Blockchain is a decentralized ledger used to securely exchange digital currency, perform deals and transactions. Each member of the network has access to the latest copy of encrypted ledger so that they can validate a new transaction. Various features such as decentralization, trustworthiness, trackability and immutability are provided by the blockchain technology. This paper provides the blockchain architecture and explains the concept, characteristics, need of Blockchain in Security, how Bitcoin works and to enhance the security in the field of IoT. It attempts to highlights the role of Blockchain in shaping the future of Cyber Security, Cryptocurrency and adoption of IoT. This paper explains the need of blockchain technology in various technical fields and shows various advantages over conventional system.