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A Secure and Dynamic Multi keyword Ranked Search Scheme over Encrypted Cloud Data
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A Secure and Dynamic Multi - keyword Ranked Search Scheme over Encrypted Cloud Data

Category : Cloud Computing


Sub Category : JAVA


Project Code : ITJCC13


Project Abstract

A SECURE AND DYNAMIC MULTI-KEYWORD RANKED SEARCH SCHEME OVER ENCRYPTED CLOUD DATA

 

ABSTRACT

 

There are large number of data users and documents in cloud, it is crucial for the search service to allow multi-keyword query and provide result similarity ranking to meet the effective data retrieval need. The searchable encryption focuses on single keyword search or Boolean keyword search, and rarely differentiates the search results. The data owner is protecting data privacy sensitive data have to be encrypted before outsourcing, which is based on plaintext keyword search. Thus, enabling an encrypted cloud data search service is of paramount importance. Considering the large number of data users and documents in the cloud, it is necessary to allow multiple keywords in the search request and return documents in the order of their relevance to these keywords. In this paper, for privacy-preserving Multi-keyword ranked search over encrypted data in cloud computing (MRSE). We establish a set of strict privacy requirements for such a secure cloud data utilization system.

EXISTING SYSTEM

PROPOSED SYSTEM

EXISTING CONCEPT: -

The searchable encryption focuses on single keyword search or Boolean keyword search, and rarely differentiates the search results.

The large number of data users and documents in cloud, it is crucial for the search service to allow multi-keyword query and provide result similarity ranking to meet the effective data retrieval need.

PROPOSED  CONCEPT : -

We define and solve the challenging problem of privacy-preserving multi-keyword ranked search over encrypted cloud data (MRSE), and establish a set of strict privacy requirements for such a secure cloud data utilization system to become a reality.

Among various multi-keyword semantics, we choose the efficient principle of matching query.

EXISTING TECHNIQUE:-

Single Keyword Searchable Encryption

PROPOSED TECHNIQUE: -

Greedy Depth First Search

TECHNIQUE DEFINITION:-

Single keyword searchable encryption schemes build an encrypted searchable index such that its content is hidden to the server unless it is given appropriate trapdoors generated via secret keys.

The keyword privacy could not be protected in the public key setting since server could encrypt any keyword with public key and then use the received trapdoor to evaluate this cipher text.     

TECHNIQUE DEFINITION:-

We investigate some further enhancements of our ranked search mechanism to support more search semantics and dynamic data operations.

 

 It is privacy requirements in two different threat models

DRAWBACK:-

Single-keyword search without ranking.

 Boolean- keyword search without ranking.

 

ADVANTAGE:-

Multi-keyword ranked search over encrypted   cloud data (MRSE).

Ranked based search.

 

 
 
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