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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Rao, N.S.V. Ma, C.Y.T. Fei He Jun Zhuang Yau, D.K.Y. |
| Copyright Year | 2014 |
| Description | Author affiliation: Oak Ridge Nat. Lab., Oak Ridge, NY, USA (Rao, N.S.V.) || State Univ. of New York at Buffalo, Buffalo, NY, USA (Fei He; Jun Zhuang) || Singapore Univ. of Technol. & Design, Singapore, Singapore (Yau, D.K.Y.) |
| Abstract | In several critical infrastructures, the cyber and physical parts are correlated so that disruptions to one affect the other and hence the whole system. These correlations may be exploited to strategically launch components attacks, and hence must be accounted for ensuring the infrastructure resilience, specified by its survival probability. We characterize the cyber-physical interactions at two levels: (i) the failure correlation function specifies the conditional survival probability of cyber sub-infrastructure given the physical sub-infrastructure as a function of their marginal probabilities, and (ii) the individual survival probabilities of both sub-infrastructures are characterized by first-order differential conditions. We formulate a resilience problem for infrastructures composed of discrete components as a game between the provider and attacker, wherein their utility functions consist of an infrastructure survival probability term and a cost term expressed in terms of the number of components attacked and reinforced. We derive Nash Equilibrium conditions and sensitivity functions that highlight the dependence of infrastructure resilience on the cost term, correlation function and sub-infrastructure survival probabilities. These results generalize earlier ones based on linear failure correlation functions and independent component failures. We apply the results to models of cloud computing infrastructures and energy grids. |
| Starting Page | 1 |
| Ending Page | 8 |
| File Size | 185789 |
| Page Count | 8 |
| File Format | |
| ISBN | 9788490123553 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2014-07-07 |
| Publisher Place | Spain |
| Access Restriction | Subscribed |
| Rights Holder | International Society of Information Fusion |
| Subject Keyword | Correlation Servers Cloud computing Games Sensitivity SCADA systems Equations |
| Content Type | Text |
| Resource Type | Article |
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