• Sushmita Madishetty
• A. Naveen
• CH Ramya

In today’s world, internet applications development demand is very high. So, IoT is a major technology by which we can produce useful internet applications. Some reports on IoT predict that IoT devices will grow to 26 billion by 2020 which is equal to 7.3 billion PC’s which are to be expected by 2020. Actually the thought of IoT first became popular in 1999. The versatality of IoT has became very popular in recent times. There are many advantages of having a device based on IoT. Technology has been gaining enormous attention in all the areas.If we name those,we get many. Among those few of them are “blockchain and security, blockchain and finance,blockchain and logistics, blockchain and IoT and so on. In this paper, we try to give a clear picture and idea about blockchain and IoT. Both are bigger deals in individual sense.If we combine both, it is biggest deal on internet. In fact, convergence of blockchain and IoT is on the agenda for many companies and there are existing solutions in several areas,outside of IoT too. The goal of this work is to provide detailed description of how blockchains work,pros and cons, the ways in which blockchain and IoT work together.

Blockchain, IOT, security threat

"Importance of Blockchain technology for the Smart Devices", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 4, page no.59-62, April-2019, Available :http://www.jetir.org/papers/JETIRAZ06011.pdf

"Importance of Blockchain technology for the Smart Devices", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 4, page no. pp59-62, April-2019, Available at : http://www.jetir.org/papers/JETIRAZ06011.pdf