WSN is a wireless sensor network. It is the multi-hop network where large numbers of sensor nodes are connected together by wireless medium. WSN network used in various application like Military, Whether Detection, Agriculture etc. In this network data transfer occurs through wireless medium so we always need an efficient security scheme for this type of network which provides better security. WSN is a network contains low power sensor nodes so we need an efficient scheme which requires less power. In this security scheme implementation key management phase plays an important role because security of any scheme depends on key security. Many Key Management Scheme proposed in previous years like LEAP, PANJA, SEHKM etc. We explored these schemes and proposed a scheme for general purpose sensor networks which provide region able security level with less time requirement. The performance is measure in term of time requirement.

Wireless Sensor Network [WSN], Key Management

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