Privacy-Preserving Kth Element Score over Vertically Partitioned Data

被引:18
|
作者
Vaidya, Jaideep [1 ]
Clifton, Christopher W. [2 ]
机构
[1] Rutgers State Univ, Management Sci & Informat Syst Dept, Newark, NJ 07102 USA
[2] Purdue Univ, Dept Comp Sci, W Lafayette, IN 47907 USA
基金
美国国家科学基金会;
关键词
Privacy; security; kth element score; top-k queries;
D O I
10.1109/TKDE.2008.167
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
Given a large integer data set shared vertically by two parties, we consider the problem of securely computing a score separating the kth and the (k+1)th element. An efficient secure protocol is developed to compute such a score while revealing little additional information. The proposed protocol is implemented using the Fairplay system and experimental results are reported. We show a real application of this protocol as a component used in the secure processing of top-k queries over vertically partitioned data.
引用
收藏
页码:253 / 258
页数:6
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