International Journal of Modern Engineering Research (IJMER)
As wireless sensor networks continue to grow, so does the need for effective security mechanisms. Because sensor networks may interact with sensitive data and/or operate in hostile unattended environments, it is imperative that these security concerns be addressed from the beginning of the system design. Their low cost provides a means to deploy large sensor arrays in a variety of conditions capable of performing both military and civilian tasks. Wireless sensor networks are a new type of networked systems, characterized by severely constrained computational and energy resources, and an ad hoc operational environment.