International Association for Cryptologic Research
Secure Multiparty Computation (SMC) is seen as one of the main enablers for secure outsourcing of computation. Currently, there are many different SMC techniques (garbled circuits, secret sharing, homomorphic encryption, etc.) and none of them is clearly superior to others in terms of efficiency, security guarantees, ease of implementation, etc. For maximum efficiency, and for obeying the trust policies, a privacy-preserving application may wish to use several different SMC techniques for different operations it performs.