Secure Outsourcing of Geospatial Vector Data

The objective of secure outsourcing is to enforce authorizations specified by the data owner on the outsourced data as service provider cannot be trusted. It protects the location data from attackers while allowing authorized users to issue spatial queries that are executed efficiently by service provider. In this paper, we are proposing secure outsourcing mechanism for geospatial vector data by utilizing Hilbert R tree for transformation and indexing of outsourced data and Merkle Hash tree for secure storage of outsourced data as well as for preserving integrity of the query results generated by service provider.