[Resource Topic] 2012/538: Private Top-k Aggregation Protocols

Welcome to the resource topic for 2012/538

Title:
Private Top-k Aggregation Protocols

Authors: Myungsun Kim, Abedelaziz Mohaisen, Jung Hee Cheon, Yongdae Kim

Abstract:

In this paper, we revisit the private top-κ data aggregation problem. First we formally define the problem’s security requirements as both data and user privacy goals. To achieve both goals, and to strike a balance between efficiency and functionality, we devise a novel cryptographic construction that comes in two schemes; a fully decentralized simple construction and its practical and semi-decentralized variant. Both schemes are provably secure in the semi-honest model. We analyze the computational and communi- cation complexities of our construction, and show that it is much more efficient than the existing protocols in the literature.

ePrint: https://eprint.iacr.org/2012/538

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