A Domain Specific Language for Secure Outsourcing of Computation to the Cloud

Secure outsourcing of computation has gained importance with the proliferation of cloud services. However, existing outsourcing protocol specification languages are mainly suitable for secure multi-party computation. They offer limited support for secure outsourcing of computation of large datasets in cloud computing environments. This paper presents a model driven approach to define then coordinate the execution of secure outsourcing protocols. First we present the details of our Outsourcing Protocol Definition Language (OPDL) used to define a machine-process able protocols in an abstract and declarative way while leaving the implementation details to the underlying runtime components. The proposed language aims to simplify the design of these protocols while allowing their verification and the generation of cloud services composition to coordinate the protocol execution. We evaluated the expressiveness of OPDL by using it to define a set of representative secure outsourcing protocols from the literature.