An Internet of Things Access Control Scheme Based on Permissioned Blockchain and Edge Computing

In the IoT (Internet of Things) environment, existing access control schemes for device resources have some problems, such as poor scalability, high latency, security, and dynamics. Combining advantages permissioned blockchain edge computing, an scheme Internet Things based on computing is proposed. By authenticating user’s identity at edge, reliable response time improved. ABAC (Attribute Based Access Control) model, regarded a trusted entity, policy written into smart contract deployed calling. Most consensus algorithms problems low throughput scalability. A Kraft (Kademlia–Raft) algorithm introduced to solve above issues. Security analysis experimental results show that can achieve fine-grained, dynamic control, has ensures security reliability.