An Architecture for Practical Actively Secure MPC with Dishonest Majority

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Provided by: University of Brighton
Topic: Security
Format: PDF
The authors present a runtime environment for executing secure programs via a multi-party computation protocol in the preprocessing model. The runtime environment is general and allows arbitrary reactive computations to be performed. A particularly novel aspect is that it automatically determines the minimum number of rounds needed for a computation, given a specific instruction sequence, and it then uses this to minimize the overall cost of the computation. Various experiments are reported on, on various non-trivial functionalities. They show how, by utilizing the ability of modern processors to execute multiple threads at a time, one can obtain various tradeoffs between latency and throughput.
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