AN OVERVIEW OF WIRELESS SENSOR NETWORK ATTACKS AND SECURITY TECHNOLOGIES

Wireless sensor network (WSN) is a special type of wireless network for several industrial and quotidian applications to monitor physical or environmental conditions in real time. The development of wireless sensor network is motivated by military applications for battlefield surveillance. WSN consists of nodes from a few to several hundreds or even thousands, where each node communicates wirelessly to a central gateway, which provides connection to the wired and wireless world where the WSN date can be accessed by different types of external networks like internet, cellular networks or satellite. Wireless Sensor Network is affected by a number of network layer attacks. In this paper, we consider different types of network attacks and routing security in wireless sensor networks. The routing protocols of sensor networks are not designed with security, but security is important factor in the concept of wireless sensor networks.