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Published in:

Volume 5 Issue 4
April-2018
eISSN: 2349-5162

Unique Identifier

JETIR1804159

Page Number

784-787

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Title

A secure and dynamic multi-keyword Ranked search schema over encrypted cloud data

ISSN

2349-5162

Cite This Article

"A secure and dynamic multi-keyword Ranked search schema over encrypted cloud data", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 4, page no.784-787, April-2018, Available :http://www.jetir.org/papers/JETIR1804159.pdf

Abstract

Abstract: Due to the increasing popularity of cloud computing, more and more data owners are motivated to outsource their data to cloud servers for great convenience and reduced cost in data management. However, sensitive data should be encrypted before outsourcing for privacy requirements, which obsoletes data utilization like keyword-based document retrieval. In this paper, we present a secure multi-keyword ranked search scheme over encrypted cloud data, which simultaneously supports dynamic update operations like deletion and insertion of documents. Specifically, the vector space model and the widely-used TF_IDF model are combined in the index construction and query generation. We construct a special tree-based index structure and propose a “Greedy Depth-first Search” algorithm to provide efficient multi-keyword ranked search. The secure Knn algorithm is utilized to encrypt the index and query vectors, and meanwhile ensure accurate relevance score calculation between encrypted index and query vectors. In order to resist statistical attacks, phantom terms are added to the index vector for blinding search results. Due to the use of our special tree-based index structure, the proposed scheme can achieve sub-linear search time and deal with the deletion and insertion of documents flexibly. Extensive experiments are conducted to demonstrate the efficiency of the proposed scheme.

Key Words

Cloud Computing , KNN algorithm, Greedy algorithm and RSA algorithm

Cite This Article

"A secure and dynamic multi-keyword Ranked search schema over encrypted cloud data", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 4, page no. pp784-787, April-2018, Available at : http://www.jetir.org/papers/JETIR1804159.pdf

Publication Details

Published Paper ID: JETIR1804159
Registration ID: 181150
Published In: Volume 5 | Issue 4 | Year April-2018
DOI (Digital Object Identifier):
Page No: 784-787
ISSN Number: 2349-5162

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Cite This Article

"A secure and dynamic multi-keyword Ranked search schema over encrypted cloud data", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 4, page no. pp784-787, April-2018, Available at : http://www.jetir.org/papers/JETIR1804159.pdf




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