NEED OF PRIVACY PRESERVATION IN CLOUD DATABASES

Abstract

The data is growing enormously with every passing day. With the paradigm shift in the technology used to store, manage and retrieve the data from file storage to relational databases to today's cloud databases, the need to process the query efficiently while preserving the privacy had always been the priority. The dynamism of the query and the optimization of the resources used for query execution are the aspects that don’t change in any situation. The timing constraint on the query execution could be instantaneous, urgent, leisurely or indefinite. But in almost all the scenarios the effective storage, manipulation and data retrieval is the key. While retrieving the data stored in cloud, privacy preservation is of utmost importance. We propose an experimental setup to test the effectiveness of some storage policies in cloud databases that may help in effective retrieval of the data while preserving the privacy. The paper discusses the principles of data privacy in the light of cloud computing, the Eucalyptus private cloud, the existing storage structure of Eucalyptus and the possible alterations to be made to it to achieve privacy preserved data retrieval.