International Journal of Advanced Research in Computer Science and Software Engineering (IJARCSSE)
Now-a-days, Wireless Sensor Networks (WSNs) have gained more popularity due to its various application areas. So security mechanism should be effective for it. As they are widely used in civilian as well as military applications the pre -distribution mechanism is also very effective. Key pre-distribution is kind of challenging task in WSN because neighbors of a node are unknown to each other after deployment. For communication to be secure there must be a common secure key or a common secure key path must be present. There are various techniques for the key distribution is present.