Fast Evaluation of S-boxes with Garbled Circuits

This code extends the MP-SPDZ framework to implement the garbling scheme for SPN primitives described in the paper. It consists of the implementation, benchmarking scripts, benchmarking instructions and raw benchmark data.
The code can be used to reproduce the performance benchmark from the paper and/or to build new applications making use of the techniques. The implementation is a prototype implementation and has not been thoroughly checked to be secure or correct.