CryptoDSPs for Cloud Privacy

Signal processing governs almost every audiovisual stimuli that we receive from electronic sources. Recently, concerns about privacy of the processed signals (especially biomedical signals) has been raised, as it has been traditionally overlooked. This fact, together with the advent of Cloud computing and the growing tendency to outsource not only the storage but also the processing of data has created a fundamental need for privacy preserving techniques that protect signals at the Cloud. We provide a landscape of technologies brought up by the novel discipline of Signal Processing in the Encrypted Domain (SPED), and we show their application to solve Cloud Computing privacy issues, introducing the concept of virtualized CryptoDSPs, as an architecture for implementing SPED technologies on Cloud scenarios.