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Cloud service providers offer their customers with on-demand andcost-effective services, scalable computing, and network infrastructures.Enterprises migrate their services to the cloud to utilize the benefit of cloudcomputing such as eliminating the capital expense of their computing need.There are security vulnerabilities and threats in the cloud. Many researcheshave been proposed to analyze the cloud security using Graphical SecurityModels (GSMs) and security metrics. In addition, it has been widely researchedin finding appropriate defensive strategies for the security of the cloud.Moving Target Defense (MTD) techniques can utilize the cloud elasticityfeatures to change the attack surface and confuse attackers. Most of theprevious work incorporating MTDs into the GSMs are theoretical and theperformance was evaluated based on the simulation. In this paper, we realizedthe previous framework and designed, implemented and tested a cloud securityassessment tool in a real cloud platform named UniteCloud. Our securitysolution can (1) monitor cloud computing in real-time, (2) automate thesecurity modeling and analysis and visualize the GSMs using a Graphical UserInterface via a web application, and (3) deploy three MTD techniques includingDiversity, Redundancy, and Shuffle on the real cloud infrastructure. Weanalyzed the automation process using the APIs and showed the practicality andfeasibility of automation of deploying all the three MTD techniques on theUniteCloud.

An Automated Security Analysis Framework and Implementation for Cloud