There are millions of smartphones people carry around that support Bluetooth Low Energy. All these phones could be used as Bluetooth beacons, i.e. to periodically emit a signal carrying certain information such as ID, location or name of a place. These signals could be used by other phones to infer location, an event one is attending or proximity of friends.
The goal of this project is to develop infrastructure which would support that while protecting a user’s privacy by changing the emitted ID each time a device changes its place. A server will be used to maintain the anonymity of the clients while giving them benefits as if static client UUIDs were used.
This repository contains implementation of the Bellrock Server as described in the Bellrock Master Thesis and also in the paper Bellrock—Anonymous Proximity Beacons From Personal Devices.
- Java 1.8+.
- Raw data from the OpenCellID database. This is
used to make the Anonymous User ID decryption faster. You will need to
preprocess the raw data using
celltowerapi/OpenCellIDDatabaseProcessor.java. - HyperSQL.
- JUnit.
- A LaTeX installation in case you want to export simulation graphs.
All of this code is licensed under the MIT license. If you use the code here, please cite the following paper:
@inproceedings{zidek2018bellrock,
title={Bellrock: Anonymous Proximity Beacons From Personal Devices},
author={Zidek, Augustin and Tailor, Shyam and Harle, Robert},
booktitle={2018 IEEE International Conference on Pervasive Computing and Communications (PerCom)},
pages={1--10},
year={2018},
organization={IEEE}
}