Privacy Preserving Multi-Agent Planning with Provable Guarantees

Research output: Working paper/PreprintPreprint


In privacy-preserving multi-agent planning, a group of agents attempt to cooperatively solve a multi-agent planning problem while maintaining private their data and actions. Although much work was carried out in this area in past years, its theoretical foundations have not been fully worked out. Specifically, although algorithms with precise privacy guarantees exist (Yao, 1982; Goldreich, Micali, & Wigderson, 1987), even their most efficient implementations are not fast enough on realistic instances, whereas for practical algorithms no meaningful privacy guarantees exist. secure mafs (Brafman, 2015), a variant of themultiagent forward search algorithm (Nissim & Brafman, 2014a) is the only practical algorithm to attempt to offer more precise guarantees, but only in very limited settings and with proof sketches only. In this paper we formulate a precise notion of secure computation for search-based algorithms and prove that secure mafs has this property in all domains. We also provide a proof of its completeness.
Original languageEnglish
StatePublished - Nov 2018


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