This project is focused on the research, design, implementation and experimental evaluation of privacy-enhanced services for cloud applications supported in Amazon EC2. The project investigates privacy-enhanced mechanisms for DBaaS and Key-Value Storage environments supported by a Full-Fledged End-to-End Privacy-Enhanced Middleware System implemented in a secure gateway, materialised as a virtualized runtime library running on a Checkpoint Cloud Guard vSEC appliance - a certified solution by Amazon AWS. In this partnership NOVA Lincs helped AMAZON in the design, implementation and evaluation of a common middleware approach for full-fledged SQL private DBaaS systems (supported as MySQL DBaaS or AWS S3 Key-value Stores, to support AMAZON CloudSerach operations on encrypted data. The results of the project are used by AMAZON partners in the banking and financial sector, running data-analytics for multi-channel payment gateways and EBanking Platforms. Main partnership: NovaLINCS, Amazon AWS (Research Grant / PhD-MSc Grants) Other partners: ETH, Checkpoint, Oracle, Reference Users/Testing Partners: CGD - Caixa Geral de Depósitos, DB - Deutsche Bank.