Abstract

Secure Multi-party 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. A straightforward implementation of this application may result in a program that (i) contains a lot of duplicated code, differing only in the used SMC technique; (ii) is difficult to maintain, if policies or SMC implementations change; and (iii) is difficult to reuse in similar applications using different SMC techniques.

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