Anonymous Attribute-based Credentials in Collaborative Indoor Positioning Systems

Raúl Casanova-Marqués, Raúl Casanova-Marqués, Pavel Pascacio, Pavel Pascacio, Jan Hajny, Joaquín Torres-Sospedra, Joaquín Torres-Sospedra

2021

Abstract

Collaborative Indoor Positioning Systems (CIPSs) have recently received considerable attention, mainly because they address some existing limitations of traditional Indoor Positioning Systems (IPSs). In CIPSs, Bluetooth Low Energy (BLE) can be used to exchange positioning data and provide information (the Received Signal Strength Indicator (RSSI)) to establish the relative distance between the actors. The collaborative models exploit the position of actors and the relative position among them to allow positioning to external actors or improve the accuracy of the existing actors. However, the traditional protocols (e.g., iBeacon) are not yet ready for providing sufficient privacy protection. This paper deals with privacy-enhancing technologies and their application in CIPS. In particular, we focus on cryptographic schemes which allow the verification of users without their identification, so-called Anonymous Attribute-based Credential (ABC) schemes. As the main contribution, we present a cryptographic scheme that allows security and privacy-friendly sharing of location information sent through BLE advertising packets. In order to demonstrate the practicality of our scheme, we also present the results from our implementation and benchmarks on different devices.

Paper Citation

in Harvard Style

Casanova-Marqués R., Pascacio P., Hajny J. and Torres-Sospedra J. (2021). Anonymous Attribute-based Credentials in Collaborative Indoor Positioning Systems. In Proceedings of the 18th International Conference on Security and Cryptography - Volume 1: SECRYPT, ISBN 978-989-758-524-1, pages 791-797. DOI: 10.5220/0010582507910797

in Bibtex Style

@conference{secrypt21,
author={Raúl Casanova-Marqués and Pavel Pascacio and Jan Hajny and Joaquín Torres-Sospedra},
title={Anonymous Attribute-based Credentials in Collaborative Indoor Positioning Systems},
booktitle={Proceedings of the 18th International Conference on Security and Cryptography - Volume 1: SECRYPT,},
year={2021},
pages={791-797},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0010582507910797},
isbn={978-989-758-524-1},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 18th International Conference on Security and Cryptography - Volume 1: SECRYPT,
TI - Anonymous Attribute-based Credentials in Collaborative Indoor Positioning Systems
SN - 978-989-758-524-1
AU - Casanova-Marqués R.
AU - Pascacio P.
AU - Hajny J.
AU - Torres-Sospedra J.
PY - 2021
SP - 791
EP - 797
DO - 10.5220/0010582507910797