An hybrid secure scheme for secure transmission in grid based Wireless Sensor Network

In a Wireless Sensor Networks (WSNs) the sensor nodes are placed in an environment depending on the applications where secure communication is in high demand. To ensure the privacy and safety of data transactions in the network, a unique identification for the nodes and secure key for transportation have become major concerns. In order to establish a secure communication channel in the network, care and address the recourse constraints related to the devices and the scalability of the network when designing a secure key management. An approach for secure communication channel establishment is made in order to suite the functional and architectural features of WSNs. Here a hybrid key management scheme for symmetric key cryptography is attempted to establish a secure communication. An ECC and DH based key management and a certificate generation scheme, where the key is generated to decrypt the certificates to establish link for communication in the network. The hybrid scheme is tested based on amount of energy consumed and security analysis by simulation.