We introduce distributed key generation schemes for FSS-based distributed point function and distributed comparison function,
supporting both input and output to be arithmetic-shared. We further design crucial FSS-based components optimized for online efficiency, serving as the building blocks for advanced protocols.
Finally, we propose a framework leverages the periodic property of trigonometric functions, ubiquitous in scientific computations, reducing the bit length of input during FSS evaluation.
Contents
This repository consists of the following parts:
src: Implementations for our 2PC FSS scheme and case studies.
2pc_test: Demonstrations for function usage and performance test.
Installation
NOTE: Our implementation is built based on EzPC and a complete compilation process of EzPC is required.
For any issues occurred during step 1 to 4, please refer to EzPC troubleshooting.
Clone EzPC repository (At this step, you do not have to clone our repo. If you have already done so, it is recommended to execute cd ..).
git clone http://github.com/mpc-msri/EzPC/
cd EzPC
Install dependencies. This installs required tools like g++, cmake, boost and ocaml. This takes a long time.
./setup_env_and_build.sh quick
Recompile EzPC compiler.
cd EzPC/EzPC/
eval `opam env`
make
cd ../../
Compile FSS backend.
cd FSS/
mkdir build
cd build
cmake -DCMAKE_INSTALL_PREFIX=./install -DCMAKE_BUILD_TYPE=Release ../
make install
cd ../../../
cd EzPC/FSS
cp -r ../../dealerless-FSS_public/* ./
Recompile LLAMA framework again
rm -rf ./build
mkdir build
cd build
cmake -DCMAKE_INSTALL_PREFIX=./install -DCMAKE_BUILD_TYPE=Release ../
make install
Usage
For detailed useage, refer to 2pc_test folder.
Currently, our framework can not be directly used with Athos as the end-to-end backend and we are still working on this.
As the alternative, you may directly invoke our FSS protocol as the wrapper function in the post-compiled file generated by Athos.
Disclaimer
This repository is a proof-of-concept prototype.
关于
NDSS'25 - Distributed Function Secret Sharing and Application
Distributed Function Secret Sharing and Applications
Source code and the implementation of the NDSS’25 accepted paper - Distributed Function Secret Sharing and Applications.
Introduction
We introduce distributed key generation schemes for FSS-based distributed point function and distributed comparison function, supporting both input and output to be arithmetic-shared. We further design crucial FSS-based components optimized for online efficiency, serving as the building blocks for advanced protocols. Finally, we propose a framework leverages the periodic property of trigonometric functions, ubiquitous in scientific computations, reducing the bit length of input during FSS evaluation.
Contents
This repository consists of the following parts:
Installation
NOTE: Our implementation is built based on EzPC and a complete compilation process of EzPC is required. For any issues occurred during step 1 to 4, please refer to EzPC troubleshooting.
cd ..).g++,cmake,boostandocaml. This takes a long time.Usage
For detailed useage, refer to
2pc_testfolder.Currently, our framework can not be directly used with Athos as the end-to-end backend and we are still working on this. As the alternative, you may directly invoke our FSS protocol as the wrapper function in the post-compiled file generated by Athos.
Disclaimer
This repository is a proof-of-concept prototype.