Scalable Private Signaling

This repository contains the proof-of-concept implementation of Scalable Private Signaling (SPS) using PathORAM and Trusted Execution Environment (TEE). It contains two prototypes:

• ZeroTrace-sps - SPS prototype that is side-channel resistant, built using ZeroTrace library
• sgx-ps - SPS prototype that is not side-channel resistant but faster and optimized.

Environment and Language

Here we list out the environment (OS, processor) and programming language used at the time of development.

• TEE: Intel SGXv1
• OS: Ubuntu 20.04 LTS
• CPU hardware: Intel Xeon E-2288G hosted on Azure DC2s v2
• Number of cores and RAM: 2 vCPUs and 8 GB RAM
• Language: C++

Dependencies

Before installing sgx-sps, ensure you have the following already installed on your Ubuntu machine:

• Intel SGX Linux Drivers
• Intel SGX Linux SDK
• OpenSSL 1.1.1t Package
• Intel SGX SSL Library

Installation

Go to the respective README.md files in each folder to install and run them.