HybridPIR

Rust implementation of a hybrid Private Information Retrieval (PIR) protocol, using CIP-PIR as the multi-server, and SealPIR as the single-server protocol, including Android example.

CIP-PIR: implementation, paper

SealPIR: implementation, paper

Dependencies

• Rust (rustup)
• Android NDK 21.0.6113669

Setup

• copy/link/merge cargo-config.toml into ~/.cargo/config, adjusting paths as necessary
• $ rustup target add aarch64-linux-android armv7-linux-androideabi
• $ ./build.sh to build Rust project and create libraries for Android project
• Run $ ./gradlew installRunDebug in android/ to build and run APK

Troubleshooting

• libc++_shared.so errors: Adjust android/app/src/main/jniLibs/*/libc++_shared.so links
• Rust build errors: Check NDK paths in ~/.cargo/config and build.sh