PRISMACLOUD Tools: A Cryptographic Toolbox for Increasing Security in Cloud Services

The EC Horizon 2020 project PRISMACLOUD aims at cryptographically addressing several severe risks threatening end user security and privacy in current cloud settings. This shall be achieved by the provision of a reusable toolbox encapsulating cryptographic functionality from which dependably secure cloud services can be assembled. In order to provide a tangible abstraction of the complexity involved with the construction of cryptographically secured cloud services, we introduce the four-layer PRISMACLOUD architecture. Top down, it consists of a use cases (application) layer, a services layer, a tools layer, and a cryptographic primitives and protocols layer. In this paper we provide a detailed description of the PRISMACLOUD tools in terms of functional components, as well as how they interact to provide the desired security functionality. We also briefly describe the cutting-edge cryptographic primitives which are encompassed by the tools. Both the toolbox and the cryptographic primitives and protocols are being currently developed and will be provided as reference implementation by project end in July 2018.