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Computation outsourcing using virtual appliance is getting prevalent in cloud computing. However, with both hardware and software being controlled by potentially curious or even malicious cloud operators, it is no surprise to see frequent reports of security accidents, like data leakages or abuses. This paper proposes Kite, a hardware-software framework that guards the security of tenant’s virtual...
Virtualization has been widely used in cloud computing systems to cut costs, and to provide dynamically scalable resources over the internet. Many ideas have been proposed to increase the security of the virtualized systems. But, a big unspoken assumption of these ideas is that the cloud users have to trust the cloud provider totally and unconditionally. In reality, however, this assumption can't...
The Scientific Bytecode Virtual Machine is a virtual machine designed specifically for performance, security, and portability of scientific applications deployed in a Grid environment. The performance overhead normally incurred by virtual machines is mitigated using native optimized scientific libraries, security is obtained by sandboxing techniques. Lastly, by executing platform-independent bytecodes,...
Partitioned software architectures were conceived to fulfill security and avionics requirements where predictability is extremely important. Both, the availability of new processors and an increased necessity of security, have opened new possibilities to use efficiently this approach. Avionic industry has consolidated the Integrated Modular Avionics (IMA) as a solution to manage the software growth...
We present the design of a trusted platform module (TPM) that supports hardware-based virtualization techniques. Our approach enables multiple virtual machines to use the complete power of a hardware TPM by providing for every virtual machine (VM) the illusion that it has its own hardware TPM. For this purpose, we introduce an additional privilege level that is only used by a virtual machine monitor...
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