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Privacy-Preserving Sharing of Sensitive Information

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2 Author(s)
Stolfo, Salvatore J. ; Columbia University ; Tsudik, Gene

Privacy-preserving sharing of sensitive information (PPSSI) is motivated by the increasing need for entities (organizations or individuals) that don't fully trust each other to share sensitive information. Many types of entities need to collect, analyze, and disseminate data rapidly and accurately, without exposing sensitive information to unauthorized or untrusted parties. Although statistical methods have been used to protect data for decades, they aren't foolproof and generally involve a trusted third party. Recently, the security research community has studied—and, in a few cases, deployed—techniques using secure, multiparty function evaluation, encrypted keywords, and private information retrieval. However, few practical tools and technologies provide data privacy, especially when entities have certain common goals and require (or are mandated) some sharing of sensitive information. To this end, PPSSI technology aims to enable sharing information, without exposing more than the minimum necessary to complete a common task.

Published in:

Security & Privacy, IEEE  (Volume:8 ,  Issue: 4 )

Date of Publication:

July-Aug. 2010

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