A Layered Searchable Encryption Scheme with Functional Components Independent of Encryption Methods

Searchable encryption technique enables the users to securely store and search their documents over the remote semitrusted server, which is especially suitable for protecting sensitive data in the cloud. However, various settings (based on symmetric or asymmetric encryption) and functionalities (ran...

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Main Authors: Guangchun Luo, Ningduo Peng, Ke Qin, Aiguo Chen
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:The Scientific World Journal
Online Access:http://dx.doi.org/10.1155/2014/153791
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author Guangchun Luo
Ningduo Peng
Ke Qin
Aiguo Chen
author_facet Guangchun Luo
Ningduo Peng
Ke Qin
Aiguo Chen
author_sort Guangchun Luo
collection DOAJ
description Searchable encryption technique enables the users to securely store and search their documents over the remote semitrusted server, which is especially suitable for protecting sensitive data in the cloud. However, various settings (based on symmetric or asymmetric encryption) and functionalities (ranked keyword query, range query, phrase query, etc.) are often realized by different methods with different searchable structures that are generally not compatible with each other, which limits the scope of application and hinders the functional extensions. We prove that asymmetric searchable structure could be converted to symmetric structure, and functions could be modeled separately apart from the core searchable structure. Based on this observation, we propose a layered searchable encryption (LSE) scheme, which provides compatibility, flexibility, and security for various settings and functionalities. In this scheme, the outputs of the core searchable component based on either symmetric or asymmetric setting are converted to some uniform mappings, which are then transmitted to loosely coupled functional components to further filter the results. In such a way, all functional components could directly support both symmetric and asymmetric settings. Based on LSE, we propose two representative and novel constructions for ranked keyword query (previously only available in symmetric scheme) and range query (previously only available in asymmetric scheme).
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institution Kabale University
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spelling doaj-art-c30379c96e8243a1a7f618c0d91b62172025-02-03T01:11:11ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/153791153791A Layered Searchable Encryption Scheme with Functional Components Independent of Encryption MethodsGuangchun Luo0Ningduo Peng1Ke Qin2Aiguo Chen3School of Computer Science and Engineering, University of Electronic Science and Technology of China, Chengdu, Sichuan 611731, ChinaSchool of Computer Science and Engineering, University of Electronic Science and Technology of China, Chengdu, Sichuan 611731, ChinaSchool of Computer Science and Engineering, University of Electronic Science and Technology of China, Chengdu, Sichuan 611731, ChinaSchool of Computer Science and Engineering, University of Electronic Science and Technology of China, Chengdu, Sichuan 611731, ChinaSearchable encryption technique enables the users to securely store and search their documents over the remote semitrusted server, which is especially suitable for protecting sensitive data in the cloud. However, various settings (based on symmetric or asymmetric encryption) and functionalities (ranked keyword query, range query, phrase query, etc.) are often realized by different methods with different searchable structures that are generally not compatible with each other, which limits the scope of application and hinders the functional extensions. We prove that asymmetric searchable structure could be converted to symmetric structure, and functions could be modeled separately apart from the core searchable structure. Based on this observation, we propose a layered searchable encryption (LSE) scheme, which provides compatibility, flexibility, and security for various settings and functionalities. In this scheme, the outputs of the core searchable component based on either symmetric or asymmetric setting are converted to some uniform mappings, which are then transmitted to loosely coupled functional components to further filter the results. In such a way, all functional components could directly support both symmetric and asymmetric settings. Based on LSE, we propose two representative and novel constructions for ranked keyword query (previously only available in symmetric scheme) and range query (previously only available in asymmetric scheme).http://dx.doi.org/10.1155/2014/153791
spellingShingle Guangchun Luo
Ningduo Peng
Ke Qin
Aiguo Chen
A Layered Searchable Encryption Scheme with Functional Components Independent of Encryption Methods
The Scientific World Journal
title A Layered Searchable Encryption Scheme with Functional Components Independent of Encryption Methods
title_full A Layered Searchable Encryption Scheme with Functional Components Independent of Encryption Methods
title_fullStr A Layered Searchable Encryption Scheme with Functional Components Independent of Encryption Methods
title_full_unstemmed A Layered Searchable Encryption Scheme with Functional Components Independent of Encryption Methods
title_short A Layered Searchable Encryption Scheme with Functional Components Independent of Encryption Methods
title_sort layered searchable encryption scheme with functional components independent of encryption methods
url http://dx.doi.org/10.1155/2014/153791
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