libdpf

A template for 2-server 1-bit Distributed Point Function. The construction is from "Function Secret Sharing: Improvements and Extensions" from Boyle et al.

Paper: https://cs.idc.ac.il/~elette/FSS-CCS.pdf

Implementations

Directory	Language	Description
libdpf-c/	C	Native implementation with hardware-accelerated AES (x86_64 & ARM64)
libdpf-rust/	Rust	Rust implementation
libdpf-ts/	TypeScript	TypeScript implementation

Supported Platforms (C Implementation)

The C implementation supports hardware-accelerated AES on:

• x86_64/x64: Uses Intel AES-NI instructions
• ARM64/Apple Silicon: Uses ARMv8-A Cryptographic Extension (NEON AES instructions)

Quick Start

cd libdpf-c
mkdir build && cd build
cmake ..
make
./fss  # Run self-test

Usage as Rust Dependency

Add this to your Cargo.toml:

[dependencies]
libdpf = { git = "https://github.com/weikengchen/libdpf.git" }

Or to use a specific branch:

[dependencies]
libdpf = { git = "https://github.com/weikengchen/libdpf.git", branch = "main" }

Usage as TypeScript/JavaScript Dependency

Add this to your package.json:

{
  "dependencies": {
    "libdpf": "github:weikengchen/libdpf#main"
  }
}

Or with npm:

npm install weikengchen/libdpf

Or with yarn:

yarn add weikengchen/libdpf

The TypeScript package will be automatically built from libdpf-ts/ during installation.

References

• Boyle et al. "Function Secret Sharing: Improvements and Extensions" CCS'16
• Frank Wang et al. "Splinter: Practical Private Queries on Public Data" NSDI'17

License

OpenSSL-compatible licensing. See individual files for details.