Security protocols in WSN: A survey

Wireless sensor network become one of the most emerging technology in the modern era. It happens because of the emergence of the Internet of Things (IoT) and VANET for which the WSN helps directly or indirectly. Over the year the scope of Wireless sensor network grows leaps and bounds, so that providing security to the Wireless sensor node is a need. In this paper we made survey over many available security protocols for wireless sensor network.