Hybrid Fault Tolerant Secure Framework For Wireless Sensor Network

Abstract

Wireless Sensor Network (WSN) is a new technology foreseen to be used increasingly in the newlinenear future due to their data acquisition and data processing abilities. Security for WSNs is an newlinearea vulnerable to security breaches because they are physically more accessible to possible newlineadversaries. The memory and energy limitations of sensor nodes are a major obstacle to newlineimplementing traditional security solutions. The fact that wireless sensor networks utilize an newlineunreliable communication network. These nodes, in order to snoop or sabotage, can carry out newlinea variety of attacks against the network including sinkhole and wormhole attacks. newlineThe sensor network is having a large number of small sensor nodes deployed in some newlinegeographical area for sensing different parameter as per the requirement. Purpose of the newlinenetwork is to sense different parameters and report the happenings of the respective area where newlinethe nodes were deployed in. Sensor networks are used in a variety of applications. In the newlinemilitary, it is used for surveillance and target tracking. In industrial applications, sensor newlinenetworks are used for monitoring hazardous chemicals. It is used for monitoring the newlineenvironment and in early fire warning in forests as well as seismic data collections. Sensor newlinenetworks face new challenges due to their peculiarities, primarily the stringent energy newlineconstraints to which sensing nodes are typically subjected which is not known in cellular and newlinead-hoc wireless networks. The unique features of sensor networks lead to affect the hardware newlinedesign of the nodes at least four levels: power source, processor, communication hardware, newlineand sensors newlineIn sensor Network, each node helps every other node in the network by forwarding their newlinepackets. If all is well attitude is exhibited by all participating nodes then really there is no issue. newlineHowever, if these nodes operate in a physically insecure environment, they are vulnerable to newlinecapture and compromise with a third party or man in the middle attack by the malicious node. newlineIn ad