troy := seal-cuda

The homomorphic encryption library implemented on GPU. Troy includes BFV, BGV, and CKKS schemes. Its implementation referred to the Microsoft SEAL library. For reference, this library inherently includes a CPU version of the schemes, but you can just use the GPU part by using namespace troyn.

Brief usage

The interfaces (classes, methods, etc.) are basicly the same as in SEAL, but you need to initialize the CUDA kernels (troyn::KernelProvider::initialize()) before using any of the GPU related classes. You can just call this at the beginning of your programs.

See test/timetest.cu for example.

Code structures

• src includes the implementation of the library. Just include troy_cuda.cuh and you are ready to go.
• test includes the tests.
• extern includes third-party libraries: googletest and pybind11.
• binder includes the pybind11 code to encapsulate the C/C++/CUDA interfaces for python.
• app includes a high-level implementation for computing matrix multiplication and 2d-convolution in HE.

How to run

1. Build the basic library

   mkdir build
   cd build
   cmake .. -DTROY_TEST=ON # or OFF(default), if you don't want to run tests
   make
   cd ..
   

2. Run tests

   cd build
   ctest
   ./test/timetest
   cd ..
   

3. Make the module for python

   bash makepackage.sh
   

Comparing with CPU Microsoft SEAL-4.0

1. Make and install SEAL 4.0 This requires sudo privilige to install the binary library file.

   bash install_seal.sh
   

2. CMake with TROY_COMPARE_SEAL and TROY_TEST on.

   cd build
   cmake .. -DTROY_TEST=ON -DTROY_COMPARE_SEAL=ON
   make
   cd ..
   

3. Testing

   cd build
   ./test/timetest
   ./test/timetest_seal
   

Contribute

Feel free to fork / pull request. Please cite this repository if you use it in your work.