Securing Wireless Sensor Network against Pollution attack with Block Chain

Recently, there was a massive interest to initiate security solutions in WSNs because of their applications in both civilian and military domains. Opponents can introduce different types of attacks, and block chain is used to resisting these attacks. We address the problem of pollution attacks in wireless sensor network. In a pollution attack, the opponent maliciously change some of the stored encoded packets, which are results in the incorrect decoding of a large part of the original data on retrieval. We present algorithms to detect and recover from such attacks. In contradiction to existing approaches to solve this problem, our technique is not based on adding cryptographic checksums or signatures to encoded packets, and it does not launch any additional redundancy to the system. The reason for the interest in block chain is its intermediate attributes that provide security, anonymity and data integrity without any other party organization in control of the transactions, and therefore it creates interesting research areas, particularly from the point of view of technical challenges and limitations.