Leveraging Block Chain for Security and Authentication of IoT Devices

Authentication in IoT architecture is depends on third party institutions, Certificate Authority, Identity Management; these could be vulnerable since it is prone to single-point-failure attacks. When Authentication method is intruded, it is difficult to identify data theft and other security vulnerabilities. To mitigate these and provide enhanced security against attacks, BlockChain is a foolproof methodology Secure, immutable, distributed ledger for IoT. Each IoT node to be assigned with the DeviceID in the BlockChain, such a way each other can authenticate securely. Hash of the firmware data is stored securely in the blocks and state change triggered when any attacks against the firmware. Finally proposed solution demonstrated using HyperLedger.