Towards ensuring client-side computational integrity

Abstract

Privacy is considered one of the key challenges when moving services to the Cloud. Solution like access control are brittle, while fully homomorphic encryption that is hailed as the silver bullet for this problem is far from practical. But would fully homomorphic encryption really be such an effective solution to the privacy problem? And can we already deploy architectures with similar security properties? We propose one such architecture that provides privacy, integrity and leverages the Cloud for availability while only using cryptographic building blocks available today.