Improving the Security and Privacy of Edge Devices for Internet of Things through Blockchain

Abstract

The Internet of Things (IoT) is a network of millions of computers and sensors that generate enormous amounts of data. It is sent to the cloud to be processed and computed; however, some computing paradigms are required near the edge devices due to latency, bandwidth, and storage constraints. Fog computing is a more advanced kind of cloud computing that extends some of its capabilities to end users. Within the Internet of Things, fog computing provides end-users with computational, storage, and network resources. One of the primary concerns of fog computing is authentication and safe data access between fog servers and fog nodes, as well as fog nodes and IoT users.Experiments were carried out to check communication between them, encrypting the data on transit, using symmetric and will a lightweight cryptographic algorithm. The experiments use PRESENT and AES algorithms to prove it. The system was breached to test the Ping of death and Smurf attack as DOS attack. The Sniffing for the password was done by Wireshark that also helped in the monitoring of the network. Thus, proving that encryption was a good solution for implementing security but the network was venerable to DOS and DDOS attack. In the objective to improving the security and privacy of edge device the research work opened avenue of using block chain a concept of implementing security by constructing two contract that were linked with each other. The concept helps to encrypt the data within the transaction while the sender and the receiver addresses are hashed which is the security benefits of the block chain.