Abstract:
Internet of Things (IoT) devices has completely new challenges regarding security and privacy.
Blockchain technology could be a great to mitigate challenges of data security and privacy relay in the IoT.
Crypto currency networks like Bit coin, can prove to be required towards understanding concept of
decentralized, security and Leveraging of blockchain for privacy preserving. Differential privacy is a
mathematical technique of adding a controlled amount of randomized noise to a dataset to prevent anyone
from getting information about individuals in the dataset. The added randomized noise is in controlled
manner. Therefore, the resultant dataset is still accurate enough to generate aggregate output while
maintaining the privacy of individual participants. As Block chain is a peer-to-peer distributed ledger, it is
an optimal way for preventing identity, monitoring, non-repudiation and providing tracking i
