• Gagandeep Singh
• Dr. K Suresh

IoT technology and its devices are emerging at a huge scale. A lot of sensitive data is transferred over networks in IoT, which could be either secure or insecure. While transferring such data over the network, it is more likely that attacks like data theft, manipulation of server, device and data will surface. Thus, we require an efficient and secure protocol to protect the user privacy and sensitive data. The general implementation Kerberos is prone to attacks because the major components i.e. Authentication Server (AS) and Ticket Granting Server (TGS) can be easily attacked due to their fixed positions and attacker can also monitor the conversation between client and AS due to the presence of single layer of communication channel. So, in this paper we are proposing an efficient and effective authentication scheme by making some changes to the existing Kerberos, the AS and TGS are made dynamic that means instead of relying on fixed nodes, multiple nodes can participate to become AS and TGS along with the help of fog computing and Smart Contract.

fog nodes, smart contract , hash , authentication server, ticket granting server

"SECURE AUTHENTICATION IN IOT USING DYNAMIC KERBEROS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.225-231, May-2019, Available :http://www.jetir.org/papers/JETIR1905A42.pdf

"SECURE AUTHENTICATION IN IOT USING DYNAMIC KERBEROS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp225-231, May-2019, Available at : http://www.jetir.org/papers/JETIR1905A42.pdf