Secure Indoor Location for Airport Environments

TL;DR

This paper introduces a secure, low-cost indoor positioning system for airports using inertial measurement units, QR codes, and elliptic curve cryptography to enhance user privacy and service quality.

Contribution

It presents a novel secure indoor localization method combining IMUs, QR codes, and elliptic curve cryptography for privacy-preserving airport navigation.

Findings

System achieves accurate indoor positioning in airports.

Secure communication is ensured using elliptic curve Diffie-Hellman and SNOW 3G cipher.

Prototype application demonstrates practical viability.

Abstract

This work presents a secure novel solution based on inertial measurement units to provide indoor location and positioning in airports. The use of different technologies allows to locate people with precision in this kind of indoor places where the use of the GPS is not possible. The system has been developed thinking in the low cost and in a possible future expansion of this kind of systems to improve the Quality of Service of the users in airports. The use of QR codes and low cost IMU devices through the use of people smartphones ensure this premise. An Android application has been developed to show the applicability and performance of the system. The security in this kind of systems is essential. This kind of systems needs to avoid the traceability of the IMU devices when users are using it. To solve this problem, the FourQ elliptic curve has been used to generate a shared key using the elliptic curve Diffie-Hellman protocol. The key generated with the FourQ is used then to cipher all communications through the use of the SNOW 3G stream cipher. The developed system offers promising results.