    @article {Alcaraz2017COSE,
	title = {Resilient Interconnection in Cyber-Physical Control Systems},
	journal = {Computers \& Security},
	volume = {71},
	year = {2017},
	month = {11/2017},
	pages = {2-14},
	publisher = {Elsevier},
	abstract = {<p class="rtejustify">Secure interconnection between multiple cyber-physical systems has become a\&nbsp;fundamental requirement in many critical infrastructures, where security may be\&nbsp;centralized in a few nodes of the system. These nodes could, for\&nbsp;example, have\&nbsp;the mission of addressing the authorization services required for access in highlyrestricted\&nbsp;remote substations. For this reason, the main aim of this paper is to unify\&nbsp;all these features, together with the resilience measures so as to provide control\&nbsp;at all times under a limited access in the field and avoid congestion. Concretely,\&nbsp;we present here an optimal reachability-based restoration approach, capable of\&nbsp;restoring the structural control in linear times taking into account: structural controllability,\&nbsp;the supernode theory, the good practices of the IEC-62351 standard\&nbsp;and the contextual conditions. For context management, a new attribute is specified\&nbsp;to provide a more complete authorization service based on a practical policy,\&nbsp;role and attribute-based access control (PBAC + RBAC + ABAC). To validate\&nbsp;the approach, two case studies are also discussed under two strategic adversarial\&nbsp;models.</p>
},
	issn = {0167-4048},
	doi = {https://doi.org/10.1016/j.cose.2017.03.004},
	url = {http://www.sciencedirect.com/science/article/pii/S0167404817300573},
	author = {Cristina Alcaraz and Javier Lopez and Kim-Kwang Raymond Choo}
}
