Cloud computing is a mechanism in which company hires the data centre and hosts the confidential information for computing the various services in low cost infrastructure, on-demand and dynamic provisioning. But it outstands with security concerns. Security requirements for cloud computing environment should have trusted computing platform. The system proposes cloud computing system is combined with Trusted Support Service (TSS). In this design, better user authentication can be obtained by using OTP (One Time Password). This paper denotes implementing Ubuntu Enterprise Cloud(UEC) as a private cloud and hosting the authenticated system via One Time Password (OTP) which will sent to user via email and SMS. This way the system is the most authenticated and hence totally secured. The system also provides the Trusted Support Service (TSS) by using Java/C editor. Paper also demonstrates the performance comparison of this system.
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