Microsoft SEAL For Python

Microsoft SEAL is an easy-to-use open-source (MIT licensed) homomorphic encryption library developed by the Cryptography Research group at Microsoft.

pybind11 is a lightweight header-only library that exposes C++ types in Python and vice versa, mainly to create Python bindings of existing C++ code.

This is a python binding for the Microsoft SEAL library.

Contents

• Build
• Tests
• About
• Contributing

Build

Linux

CMake (>= 3.10), GNU G++ (>= 6.0) or Clang++ (>= 5.0), Python (>=3.6.8)

sudo apt-get update && sudo apt-get install g++ make cmake git python3 python3-dev python3-pip

git clone https://github.com/Huelse/SEAL-Python.git

cd SEAL/native/src
cmake .
make

pip3 install -r requirements.txt

# Check the path at first
# Setuptools (Recommend)
python3 setup.py build_ext -i
# or install
python3 setup.py install

Docs: setuptools pybind11

Windows

Visual Studio 2017 version 15.3 or newer is required to build Microsoft SEAL.

Open the SEAL/SEAL.sln in VS, config in x64, Release, WinSDK(17763, etc) mode and generate it.

python3 setup.py build_ext -i
# or install
python3 setup.py install

Microsoft official video SEAL in windows.

FAQ

1. ImportError: undefined symbol

   Build a shared SEAL library cmake . -D SEAL_LIB_BUILD_TYPE=Shared, and get the libseal.so

   then change the lib path in setup.py or src/CMakeLists.txt, and rebuild.

2. ImportError: libseal.so.3.4 cannot find

   a. sudo ln -s /path/to/libseal.so /usr/lib

   b. add /usr/local/lib or the SEAL/native/lib to /etc/ld.so.conf and refresh it sudo ldconfig

   c. build in cmake.

Tests

cd tests

python3 [example_name].py

• The .so file must be in the same folder, or you had install it already.

Getting Started

C++	Python	Description
1_bfv_basics.cpp	1_bfv_basics.py	Encrypted modular arithmetic using the BFV scheme
2_encoders.cpp	2_encoders.py	Encoding more complex data into Microsoft SEAL plaintext objects
3_levels.cpp	3_levels.py	Introduces the concept of levels; prerequisite for using the CKKS scheme
4_ckks_basics.cpp	4_ckks_basics.py	Encrypted real number arithmetic using the CKKS scheme
5_rotation.cpp	5_rotation.py	Performing cyclic rotations on encrypted vectors in the BFV and CKKS schemes
6_performance.cpp	6_performance.py	Performance tests for Microsoft SEAL

Future

• pickle
• microsoft gsl

About

This project is still testing now, if any problems(bugs), Issue please.

Email: [email protected]

Contributing

• Professor: Dr. Chen

• Contributors