Privacy and availability in cloud data warehouse

Abstract

With the rise of cloud computing, data warehouse can benefit from this new technology in term of cost reduction, computing power and response time. However, as each technological advance, the cloud computing also brings its own risks, particularly in terms of security that must be taken into account to enjoy all the benefits of this solution. For that, in this paper, we propose a new secure scheme for outsourced data warehouse in the cloud. This new scheme is based on the (n, k) Shamir secret sharing schemas, information dispersal algorithm IDA and multivalued order preserving encryption MV-OPE. The proposed scheme guarantees data availability, confidentiality and enables analyzing data in the cloud without post processing in the client.