Composition and Disclosure of Unlinkable Distributed Databases
Bradley Malin, Latanya Sweeney · 2006
An individual’s location-visit pattern, or trail, can be leveraged to link sensitive data back to identity. We propose a secure multiparty computation protocol that enables locations to provably prevent such linkages. The protocol incorporates a controllable parameter specifying the minimum number of identities a sensitive piece of data must be linkable to via its trail.