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Outsourcing Power System Simulations

The advancement of cloud-computing technologies opens new possibilities to outsource to the third-party cloud the computation-intensive and time-consuming dynamic simulations needed in power grid system research and operations. Outsourcing makes it possible to conduct dynamic simulations much faster and with lower cost than to keep all computations local. On the other hand, outsourcing, however, also gives rise to the risk of information leak, as the outsourced simulation contains sensitive information, such as critical operational parameters and projected states of the power grid. In this paper, a novel secure outsourcing scheme, combining disguising technique and code obfuscation, was proposed to enable efficient outsourcing while preserving the confidentiality of the information. It was shown that our scheme can limit the adversary's capability to obtain the sensitive information in the context of outsourcing of power system dynamic simulations.