Endemic OT Kyber

A C++ library for endemic OT using CRYSTALS-Kyber.

This library provides mainly an implementation of the Kyber-based endemic OT (or MROT) protocol, which is proposed by Masny and Rindal in their CCS 2019 paper [eprint].

Prerequisites

• AVX2 compatible CPU(s)
• OpenSSL Library (Tested on version 3.4.0)
• Basic C/C++ development tools (like compilers, CMake, Git...)

Usage

You can integrate this library directly using CMake. (eg. add_subdiretory, ...)

To manually link the library, run cmake -B build && cd build/ && make to build, and link the compiled libEOTKyber.a. The header files are under include/.

Test/Benchmark

To build the test program, run cmake -DENABLE_TEST=ON -B build && cd build/ && make

The test binary EOTKyber-test is built under build/bin (or other <path-to-build>/bin). It includes two tests:

1. EndemicOT.UnitTest: A unit test with a performance benchmark for the basic functionalities of the Kyber-based Endemic OT module. The sender and the receiver functions share the same thread and are executed sequentially.

2. EndemicOT.BatchTest: A test with a performance benchmark for the EndemicOT::batch_send and EndemicOT::batch_receive functions, which integrates with the Socket class to batch execute the OT protocol. Each party is given a single thread and benchmarked separately. Messages between the parties are passed via local TCP socket(, which is provided by the Socket class).