Block Chain Applications in Internet of Things

Use of IoT devices in military and civilian context is becoming more common, however, the number of devices specific to each field and the amount of data generated in proportion to it are also increasing significantly. The rapid development of IoT also brings the security issues of devices and the data shared between them. Low memory, low compute power, and limited battery life are typical features of IoT devices. Due to their heterogeneous structure and limited resources, devices cannot be protected by traditional security measures with complex and costly calculations. Originally designed for the transfer of financial value, blockchain technology has been used in cyber security in recent years. Because of its decentralized architecture, error tolerance and encryption security advantages such as pseudonymous identities, data integrity and authentication, researchers and security analysts around the world are focusing on blockchain to resolve IoT's security and privacy issues. In this study, the potential of blockchain to solve problems encountered in IoT security is analyzed. To do this, the problems encountered in IoT security, how blockchain technology works and how blockchain technology is proposed as a solution to IoT security in literature are examined