Advanced GNSS spoofing simulation and monitoring

Spoofing feature


Advanced GNSS spoofing simulation and monitoring

SimSAFE enables better protection against GNSS spoofing attacks

Looking for native spoofing capabilities on the GSS9000? Learn more about the GSS9000 spoofing feature.

GNSS spoofing is a growing concern for developers and users of critical systems, with many well-publicized instances occurring every year. In order for users to be assured that their equipment continues to perform as expected when exposed to fake or replayed GNSS signals, it is vital to test thoroughly.

Spirent’s SimSAFE has been specifically designed to enable users of Spirent simulators to build complex and controlled spoofing scenarios. By allowing user-defined precision modification of key signal parameters such as power, code/carrier offsets, and navigation message content, SimSAFE allows users to evaluate a receiver’s vulnerability to a wide range of simulated spoofing and data replay attacks.

  • Control key signal simulation parameters for spoofing signals encompass:
    • Power level
    • Code/carrier offset (with respect to authentic signals)
  • Key simulation parameters encompass:
    • Live-sky sync with real-time update of the scenario (orbits, nav data)
    • Orbit definitions for satellites generating authentic and/or spoofing signals.
    • Code/carrier offset (with respect to authentic signals)
    • Ability to create from simple to highly sophisticated trajectory spoofing, meaconing, and navigation data attack scenarios. Trajectory spoofing can optionally encompass inherent spoofing operator errors, rather than simulating an unrealistically “perfect” spoofer
    • Support for receiver under attack (RUA) feedback with tools to monitor the progress of the spoofing attack and ensuing errors in RUA observables and nav message content
  • Multiple GPS/GNSS frequencies
  • Up to 320 channels per chassis and support for the most demanding high-dynamics GNSS applications.
  • World-leading performance from Spirent’s purpose-built simulators, trusted by the top experts in the GNSS industry.
GNSS Spoofing with Spirent Federal


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