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Now days cloud computing is an important and hot topic in arena of information technology and computer system. Several companies and educational institute s have been deployed cloud infrastructures to overc ome their problems such as easy data access, software u pdates with minimal cost, large or unlimited storag e, efficient cost factor, backup storage and disaster recovery and several other benefits compare with th e traditional network infrastructures. In this resear ch paper; Supervisory Control and Data Acquisition (SCADA) system has been deployed within cloud computing environment, to minimized the cost (that are related with real time infrastructure or SCADA implementation) and take the advantages of cloud computing. The command bytes (data) have been transmitted between SCADA nodes and traffic is monitored and controlled simultaneously at master ( main controller) site. During communication, security is a major issue because usually, SCADA sy stem and cloud infrastructure had been deployed without any security consideration. In current test bed implementation, strong security mechanism (using cryptography solution) has been deployed, wh ile exchanging commands within cloud environment (SCADA within cloud environment). Several times attacks included “authentication, integrity, confidentiality and non-repudiation” hav e been lunched, to evaluate the security solution (proposed security solution) and security during ab normal communication.

A NEW CLOUD BASED SUPERVISORY CONTROL AND DATA ACQUISITION IMPLEMENTATION TO ENHANCE THE LEVEL OF SECURITY USING TESTBED