• N. Aruna
• T. Dohala
• V. Praneetha
• V.Niharika
• M. SRINIVASA RAO

The Internet of Things or IoT is a rapidly growing phenomenon. Many of the devices around us are getting connected to the Internet, becoming "smart" in the process. However, increased connection to the Internet invites possible cyber-attacks from multiple directions. One of the fundamental problems of IoT devices is that they are bought and deployed in batches. Therefore, a majority of IoT devices deployed remain with the default factory assigned username/password combination as the only means for authentication. These make it very easy to bruteforce into these devices and take control of them. The Mirai botnet attack that took down the Dyn DNS and consequently many other important sites last October used a DDoS attack. The attack formed its botnet by brute forcing into IoT devices using default username and password combinations. One way to protect against this kind of brute force attack is to use key-based authentication as well for encrypted communication among IoT devices. This work proposes multiple architectures and protocols to enable key-based authentication for IoT devices, leveraging the block chain technology. This work also describes a scalable simulator in NS3 to test IoT specific public key infrastructure on block chain and corresponding communication protocols.

Blockchain; Cryptography; Internet of Things; DDOS Attacks; Mirai System

"A NOVEL APPROACH TO PROVIDE SECURITY MECHANISM TO COUNTER DDOS ATTACKS USING BLOCK CHAIN TECHNOLOGY", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.176-185, May-2019, Available :http://www.jetir.org/papers/JETIR1905L26.pdf

"A NOVEL APPROACH TO PROVIDE SECURITY MECHANISM TO COUNTER DDOS ATTACKS USING BLOCK CHAIN TECHNOLOGY", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp176-185, May-2019, Available at : http://www.jetir.org/papers/JETIR1905L26.pdf