Token-Based Cloud Computing: Secure Outsourcing of Data and Arbitrary Computations With Lower Latency
Secure outsourcing of computation to an untrusted (Cloud) service provider is becoming more and more important. Pure cryptographic solutions based on fully homomorphic and verifiable encryption, recently proposed, are promising but suffer from very high latency. Other proposals perform the whole computation on tamper-proof hardware and usually suffer from the same problem. Trusted Computing (TC) is another promising approach that uses trusted software and hardware components on computing platforms to provide useful mechanisms such as attestation allowing the data owner to verify the integrity of the cloud and its computation.