Protecting Critical Infrastructure from GNSS Vulnerabilities
Product Information
Protects GNSS Systems against Spoofing and Jamming Threats
New GNSS threats are on the rise including GNSS signal manipulation and degradation such as spoofing threats, jamming incidents, multipath signal interference, space weather conditions and many other issues that can create GNSS signal anomalies, disruptions and outages. The widespread deployment of GNSS makes it impractical to replace all fielded GNSS systems in a timely or cost-effective manner.
The Microchip portfolio of technologies, products, and services enables operators of Critical Infrastructure to construct a secure and robust PNT network that is resilient to GNSS errors as well as errors coming from other sky-based delivery channels such as Galileo, GLONASS, BeiDou, or another. Details of this complete portfolio are described in the Virtual Primary Reference Time Clock (vPRTC) architecture which can be found here.
Microchip's BlueSky GNSS Firewall protects already deployed GNSS systems by providing a cost-effective overlay solution installed between existing GNSS antennas and GNSS systems. Similar to a network firewall, the BlueSky GNSS Firewall protects systems inside the firewall from untrusted sky-based signals outside the firewall.
Defending against GNSS Threats needs to be part of a Cybersecurity Plan
Systems which rely on GNSS for reception of Position, Navigation and Time (PNT), have been determined by national security agencies across the globe as potential cybersecurity attack vectors.
Four Levels of Resilience
Based on the Prevent-Respond-Recover cybersecurity model, the PNT Conformance Framework document describes 4 levels of resilience. Note that the resilience levels build upon each other, that is, Level 2 includes all enumerated behaviors in Level 1, and so forth. Using the BlueSky GNSS Firewall either as a standalone security barrier or in combination with Microchip’s high-performance atomic clocks and timing distribution systems, all four levels of resilience can be achieved and exceeded.
The new BlueSky GNSS Firewall Software Release 3.0
Contained within the BlueSky GNSS Firewall is a software platform that analyses GNSS signal reception. GNSS signal data is received and evaluated from each satellite to ensure compliance along with analysing received signal characteristics. Release 3.0 further enhances the BlueSky GNSS Firewall's already field proven GNSS protection capabilities with new features such as Trusted Time Anomaly Detection, GPS Subframe Reference Detection, embedded GNSS observable tools combined with new TimePictra Performance Monitoring features to better secure, monitor, prevent, respond and recover to GNSS threats. Critical Infrastructure providers now have the most advanced set of tools for defending against all intentional or unintentional vulnerabilities and threats and achieving Level 4 Resilience as defined by the DHS PNT Conformance Framework.
Integrates seamlessly between existing GNSS Antenna and GNSS system
Microchip’s BlueSky GNSS Firewall is deployed in-line between an existing GNSS antenna and GNSS receiver system and can be placed near the GNSS receiver system or near the point at which the GNSS antenna cable enters the building. Thus, nearly all currently deployed GNSS antennas are supported without modifying the existing installation.
As a leader in frequency and time systems, Microchip continuously innovates GPS signal reception security technologies for commercial and military operators similar to how network firewalls protect against virus threats. Updates are essential to defend against rapidly-evolving GNSS disruptions and enable critical infrastructure operators to avoid interruptions of service.
