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Fast and Maliciously Secure Two-Party Computation Using the GPU

Tore Kasper Frederiksen, Jesper Buus Nielsen
Department of Computer Science, Aarhus University
Cryptology ePrint Archive: Report 2013/046, 2013
@misc{cryptoeprint:2013:046,

   author={Tore Kasper Frederiksen and Jesper Buus Nielsen},

   title={Fast and Maliciously Secure Two-Party Computation Using the GPU},

   howpublished={Cryptology ePrint Archive, Report 2013/046},

   year={2013},

   note={url{http://eprint.iacr.org/}}

}

We describe, and implement, a maliciously secure protocol for secure two-party computation, based on Yao’s garbled circuit and an efficient OT extension, in a parallel computational model. The implementation is done using CUDA and yields the fastest results for maliciously secure two-party computation in a realistic and practical setting by using a simple consumer grade CPU and GPU. Our protocol further introduces some novel constructions in order to combine garbled circuits and an OT extension in a parallel and maliciously secure setting.
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