077 - Technological Enablers of Cellular Networks for PVT Assurance

077 - Technological Enablers of Cellular Networks for PVT Assurance


Cellular networks have various built-in security features including access control, mutual authentication, and key management, which could be evolved to provide technological enablers for PVT assurance. 

An efficient solution to protect from PVT spoofing is the use of symmetric cryptographic mechanisms to render the ranging signal unpredictable to the potential attacker. 

The concept requires sophisticated key management systems or frequent rekeying for scenarios in which the users cannot be trusted. 

These workarounds could be facilitated by cellular networks technologies. In addition, cellular networks themselves have become relevant sources of PNT, using unencrypted signals.

Objective: To study, design, and demonstrate the use of the cellular networks technologies for PVT assurance and encryption of ranging signals, considering robustness against post-quantum cryptography.

Description of innovation/Tasks:  The activity will study, design, and demonstrate the use of cryptographic information securely stored on the SIM card or secure element for the encryption of GNSS ranging signals and the provision of native encryption of cellular networks PNT signals to support PVT assurance.
The feasibility of post-quantum cryptography for the aforementioned security solutions (e.g. delivery of longer cryptographic keys by cellular networks) also needs to be investigated.

Expected output:

  • Survey of state of the art on cellular network technologies for cryptographic operations
  • Breadboard and test report
  • Roadmap for commercialization, including potential Navisp EL2 activities