CIP-PIR is an efficient implementation of multi-server private information retrieval.
Details of the underlying protocols can be found in the paper "GPU-accelerated PIR with Client-Independent Preprocessing for Large-Scale Applications" published at the 31st USENIX Security Symposium (USENIX Security'22) by:
- Daniel Günther, Technical University of Darmstadt, ENCRYPTO
- Maurice Heymann, Technical University of Darmstadt
- Benny Pinkas, Bar Ilan University
- Thomas Schneider, Technical University of Darmstadt, ENCRYPTO
Warning: This code is not meant to be used for a productive environment and is intended for testing and demonstrational purposes only.
- A Linux distribution of your choice (The UC compiler was tested with Ubuntu and Kali)
- g++
- make
- CMake
- OpenMP
For GPU acceleration, you additionally need the following:
mkdir build && cd build
cmake ..
make
We explain how to run the code locally.
- Go through the file
src/parameter.h, put in your configuration, and run
make
This configuration file also contains flags which enables the GPU version of the code, parallelisation via OpenMP, and the pipelining approach.
- Create the database with
./bin/makeDatabase
Because the "makeDatabase" method is not working consistently on all platforms, it has been partly disabled. To simulate the preprocessing, please run:
dd if=/dev/urandom bs=1024 count=1250048 >> ./bin/database/raw.db_preprocess.db
Thereby, bs equals the protocols block size and count = GROUPS * GROUPSIZEP2 with GROUPSIZEP2=1 << GROUP_SIZE from src/parameter.h
- Run the PIR servers with
./bin/server -i 0
./bin/server -i 1
where i specifies the server id. You may run ./bin/server -h to see a list of further parameters.
- Run the PIR client with
./bin/client
You may run ./bin/client -hto see a list of further parameters. You should also specify the server IP addresses and ports via the party.addServer() method in src/application/client.cpp