InstantOMR: Oblivious Message Retrieval with Low Latency and Optimal Parallelizability

This is the artifact of the USENIX Security '26 paper "InstantOMR: Oblivious Message Retrieval with Low Latency and Optimal Parallelizability". In this artifact, we provide- `omr_core\src': The core implementation of the **InstantOMR** scheme.- `omr_core\examples\omr.rs': The **InstantOMR** example, which shows the time information of the whole procedure of the oblivious message retrieval with a progress bar showing the progress of the detection.- `README.md': The abstract of **InstantOMR** and the basic tutorial for running the **InstantOMR** example. Please unzip "tfhe-omr.zip" and follow the instructions in tfhe-omr/README.md for detailed usage of this artifact.