Secured Data Dissemination in Wireless Sensor Networks

Abstract — Wireless Sensor Networks are less used because of lack of good security mechanism, need to high power and memory requirement and is too vulnerable to many kinds of attacks, so most of the security mechanism focus on cryptographic techniques, key exchange, and hashing techniques. And off Couse there came many security mechanism and surveys that provided techniques and mechanisms to mitigate attacks against false injection attack and dos attacks, etc., moreover even these proposed security mechanisms only concentrated on the mitigating process for the complete data travel, i.e. the en-route and thereby left to be still at high risk, So in this paper, we came up with a contrivance that does secured dissemination thought out the en-route, thereby reducing the false filtering mechanism with the help of Nested HMAC structures. This is done by the keys derived by the nodes and cluster members. As a whole we reduce potential attacks and dos attack, and do compare with the existing methodologies which tried to reduce the same, tag an attacker as malicious node once if it is found to be the attacker, thereby alerting the sink. The correctness of the data being forwarded by the cluster head is collectively endorsed by Message authentication codes. We evaluate and analyze the performance of our mechanism through extensive analysis of relocating the position of malicious nodes in the event area. Index Terms — WSNs, Security, False injection and DOS attacks. I