Energy meter's deployed in homes are digital but not smart with wireless capability towards remotely accessing the energy units consumed from each household. So towards this, there is a big research going in every part of world in transforming the Electrical Grid into Smart Grid and in that Smart Meter is a part of it where these meters are connected to utilities along with other components of grid. Now with the deployment of smart meters where data can be accessed remotely using wireless communication, there is a big security threat pertaining to energy meter data being modified during transmission. This brings the need towards securing the meter data during transmission with stronger security protocol. In addition to securing the Meter data, there is also need to secure the data being routed wirelessly to Substation via the Base Station. Lot of secured routing protocols exist in Wireless Networks towards securing the data transmitted against attacks like Spoofing, DoS and so on. There has been no research reported so far towards secure routing of energy meter data to substation against attacks like Dos and so on. So accordingly we in this research have deployed Elliptical Curve Cryptography and compared its performance against the existing Advanced Encryption Standard (AES) Security protocol in Zigbee or wireless devices mathematically and in real time by employing Raspberry Pi3 processor for varying meter data in terms of Key Generation and Execution time. In addition, the secured energy meter data been routed securely using SAODV routing which is proved strong against Denial of Service attack which are Black nd Grey hole attack. So accordingly AES and ECC security protocol been implemented in SADOV to validate its performance against Denial of Service attacks pertaining to Black hole and Grey Hole attack. This has been validated using ns-2. So in summary we have validated the Security protocol in real time and also in simulation mode.
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