2014 ieee java network security project secure two party differentially private data release for...
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Secure Two-Party Differentially Private Data Release for
Vertically Partitioned Data
ABSTRACT:
Privacy-preserving data publishing addresses the problem of disclosing sensitive data when
mining for useful information.Among the existing privacy models, _-differential privacy
provides one of the strongest privacy guarantees. In this paper, we addressthe problem of private
data publishing, where different attributes for the same set of individuals are held by two parties.
In particular, wepresent an algorithm for differentially private data release for vertically
partitioned data between two parties in the semihonest
adversary model. To achieve this, we first present a two-party protocol for the exponential
mechanism. This protocol can be used as asubprotocol by any other algorithm that requires the
exponential mechanism in a distributed setting. Furthermore, we propose a twopartyalgorithm
that releases differentially private data in a secure way according to the definition of secure
multiparty computation.Experimental results on real-life data suggest that the proposed
algorithm can effectively preserve information for a data mining task.
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EXISTING SYSTEM:
Among the existing privacy models, _-differential privacy provides one of the strongest privacy
guarantees. In this paper, we addressthe problem of private data publishing, where different
attributes for the same set of individuals are held by two parties. In particular, wepresent an
algorithm for differentially private data release for vertically partitioned data between two parties
in the semihonestadversary model
PROPOSED SYSTEM:
we propose a twopartyalgorithm that releases differentially private data in a secure way
according to the definition of secure multiparty computation.
Experimental results on real-life data suggest that the proposed algorithm can effectively
preserve information for a data mining task. In this paper, we adopt differential privacy arecently
proposed privacy model that provides a provableprivacy guarantee. Differential privacy is a
rigorous privacymodel that makes no assumption about an adversary’sbackground knowledhave
proposed a top-down specialization(TDS) approach to generalize a data table. LeFevre et al.
have proposed another anonymization technique forclassification using multidimensional
recoding .we show that the proposed two-party algorithmprovides similar data utility for
classification analysiswhen compared to the single-party algorithmand it performs better than the
recently proposed two-party algorithm
CONCLUSION:
In this paper, we have presented the first two-partydifferentially private data release algorithm
for verticallypartitioned data. We have shown that the proposedalgorithm is differentially private
and secure under thesecurity definition of the semihonest adversary model.Moreover, we have
experimentally evaluated the datautility for classification analysis. The proposed algorithmcan
effectively retain essential information for classificationanalysis. It provides similar data utility
compared to the
recently proposed single-party algorithm [38] and betterdata utility than the distributed k-
anonymity algorithm forclassification analysis
SYSTEM CONFIGURATION:-
HARDWARE CONFIGURATION:-
Processor - Pentium –IV
Speed - 1.1 Ghz
RAM - 256 MB(min)
Hard Disk - 20 GB
Key Board - Standard Windows Keyboard
Mouse - Two or Three Button Mouse
Monitor - SVGA
SOFTWARE CONFIGURATION:-
Operating System : Windows XP
Programming Language : JAVA
Java Version : JDK 1.6 & above.