• Paras Nath Mishra

With the introduction of smart homes, smart cities, and smart everything, the Internet of Things (IoT) has emerged as a sector with enormous promise, with Cisco Inc. projecting 50 billion linked devices by 2020. The majority of these IoT gadgets, on the other hand, are simple to hack and infiltrate. These IoT devices often have lower computing, storage, and network capacities, making them more susceptible to attacks than other endpoint devices like smart phones, tablets, or PCs.We discuss and review key security concerns for IoT in this article. We examine and classify common security concerns in relation to the IoT layered architecture, as well as networking, communication, and management protocols. We discuss IoT security needs, as well as current attacks, threats, and cutting-edge solutions. In addition, we compile a list of IoT security issues and link them to current solutions in the literature. More significantly, we explain how blockchain, the underlying technology underpinning bit coin, may be used to address a variety of IoT security issues. In addition, the report highlights outstanding research issues and difficulties in the field of IoT security.

Block Chain, Data, IoT Security, IoT Protocols, Network, Security.

"A Review on Block Chain Solutions and Open Problems in IoT Security", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 3, page no.22-27, March-2019, Available :http://www.jetir.org/papers/JETIRFT06006.pdf

"A Review on Block Chain Solutions and Open Problems in IoT Security", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 3, page no. pp22-27, March-2019, Available at : http://www.jetir.org/papers/JETIRFT06006.pdf