A virtual machine group-oriented TPM system for trusted cloud computing

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Though virtual Trusted Platform Module (vTPM) make trusted computing technology compatible with virtualization in individual computers, vTPM does not fit well into the paradigm of cloud computing. Integration of trusted computing technology and cloud computing naturally requires to support the abstraction of Virtual Machine Group (VMG). vTPM is not sufficient for this purpose because each vTPM is bound to a single virtual machine, and the vTPMs bound to a set of virtual machines allocated to the same customer are deemed independent. This not only incurs inconvenience in supporting inter-vTPM cooperations, but also leads to security vulnerabilities. To bridge this gap, we propose TPM for cloud (TPMc), which is bound ...