Rashmi, Dr. R Kanagavalli
Wireless sensor network consists of small sensing devices which collaborate with each other to gather process and communicate over wireless channel information about some physical phenomena. These are selforganizing, highly robust and energy efficient network that can be excellent sentinels for monitoring underground mining, wildlife and various physical infrastructures such as buildings, pipelines and bridges. This paper explores the resource depletion attacks which will permanently disable network by draining nodes battery power. The concept PLGPa protocol was used to overcome the security issues in the existing. Using PLGPa, the data which is transferred will be hacked by the attacker. Hence, we are proposing RSA algorithm which is asymmetric in nature as well as alternate path. The proposed algorithm will consume less energy and the path established from source to destination will be secured.