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Server consolidation in Cloud Computing makes it possible for multiple servers or desktops to run on one physical server to get high resource utilization, low cost and less energy consumption. However, the scheduler in virtual machine monitor (VMM) is agnostic about the communication behavior between the guest operating systems. It leads to inefficient network communication in consolidated environment...
Cloud computing security has become the focus in information security, where much attention has been drawn to the user privacy leakage. Although isolation and some other security policies have been provided to protect the security of cloud computing, confidential information can be still stolen by timing channels without being detected. In this paper, a new method named XenPump is presented aiming...
Virtualization technology is the basis of cloud computing, and the most important property of virtualization is isolation. Isolation guarantees security between virtual machines. However, covert channel breaks the isolation and leaks sensitive message covertly. In this paper, we formally model the isolation into noninterference, and define that all the transmission channels violating noninterference...
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