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Integrity Verification of Distributed Nodes in Critical Infrastructures.

Silvia Sisinni¹, Davide Margaria², Ignazio Pedone¹

¹Department of Control and Computer Engineering, Politecnico di Torino, 10129 Torino, Italy.

Sensors (Basel, Switzerland)

|September 23, 2022

Summary

This summary is machine-generated.

Accurate time synchronization is crucial for 5G networks. This study introduces a Trusted Computing-based attestation scheme to detect attacks on time distribution systems, enhancing network security and reliability.

Keywords:

5G networks global navigation satellite system precision time protocol remote attestation trusted computing

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Area of Science:

Telecommunication Engineering
Network Security
Cybersecurity

Background:

Accurate time synchronization is critical for 5G telecommunication networks, with stringent requirements for high-precision timing.
Malfunctions due to clock desynchronization degrade 5G service quality, making time distribution networks vulnerable to attacks.
Existing mitigation strategies address Global Navigation Satellite System (GNSS) spectrum and Precision Time Protocol (PTP) vulnerabilities.

Purpose of the Study:

To highlight the importance of monitoring software and configuration integrity in time distribution network nodes.
To propose a novel attestation scheme leveraging Trusted Computing principles for enhanced security.
To detect software violations and hardware attacks targeting GNSS receiver configurations.

Main Methods:

Development of an attestation scheme based on Trusted Computing principles.
Implementation and validation of the proposed solution on a dedicated testbed.
Simulation of various adversarial scenarios to assess the scheme's effectiveness.

Main Results:

The proposed attestation scheme effectively detects software integrity violations on network nodes.
The solution demonstrates capability in identifying hardware attacks tampering with GNSS receiver configurations.
Validation on a testbed confirmed the approach's effectiveness against a range of simulated attacks.

Conclusions:

The Trusted Computing-based attestation scheme significantly enhances the security of time distribution networks.
The approach effectively detects both software and hardware-based attacks targeting critical synchronization infrastructure.
Further research is needed to address limitations and improve the security of current GNSS receivers.