In Infrastructure as a Service (IaaS) environments, the user virtual machine is the user�s private property. However, in\nthe case of privacy protection, how to ensure the security of files in the user virtual machine and the user virtual\nmachine�s behavior does not affect other virtual machines; it is a major challenge. This paper presents a trusted\nmeasurement model based on dynamic policy and privacy protection in IaaS security domain, called TMMDP. The\nmodel first proposed a measure architecture, where it defines the trusted measurement of the user virtual machine\ninto the trust of files in the virtual machine and trusted network behavior. The trusted measure was detected\nthrough the front-end and back-end modules. It then describes in detail the process of the trusted measurement in\nthe two modules. Because the front-end module is in the guest virtual machine, it also describes the protocol to\nensure the integrity of the module. Finally, the model proved to address security challenges of the user virtual\nmachine in IaaS environments by a security analysis.
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