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  4. Dynamic searchable symmetric encryption for storing geospatial data in the cloud
 
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2019
Journal Article
Title

Dynamic searchable symmetric encryption for storing geospatial data in the cloud

Abstract
We present a dynamic searchable symmetric encryption scheme allowing users to securely store geospatial data in the cloud. Geospatial data sets often contain sensitive information, for example, about urban infrastructures. Since clouds are usually provided by third parties, these data need to be protected. Our approach allows users to encrypt their data in the cloud and make them searchable at the same time. It does not require an initialization phase, which enables users to dynamically add new data and remove existing records. We design multiple protocols differing in their level of security and performance, respectively. All of them support queries containing boolean expressions, as well as geospatial queries based on bounding boxes, for example. Our findings indicate that although the search in encrypted data requires more runtime than in unencrypted data, our approach is still suitable for real-world applications. We focus on geospatial data storage, but our approach can also be applied to applications from other areas dealing with keyword-based searches in encrypted data. We conclude the paper with a discussion on the benefits and drawbacks of our approach.
Author(s)
Hiemenz, Benedikt
TU Darmstadt GRIS
Krämer, Michel  
Fraunhofer-Institut für Graphische Datenverarbeitung IGD  
Journal
International journal of information security  
DOI
10.1007/s10207-018-0414-4
Language
English
Fraunhofer-Institut für Graphische Datenverarbeitung IGD  
Keyword(s)
  • Lead Topic: Visual Computing as a Service

  • Research Line: Modeling (MOD)

  • cryptography

  • information retrieval

  • geographic information systems (GIS)

  • Cloud Computing

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