Secure global navigation satellite systems

A server configured for securing a Satellite Positioning System (SPS) for a mobile device, comprising:

• a communication interface configured to communicate with mobile devices;
• at least one memory;
• and
• at least one processor coupled to the communication interface and the at least one memory and configured to:
• receive from a plurality of mobile devices, via the communication interface, data collected from a plurality of satellites;
• determine assistance data for a geographical region of the mobile device based on the data collected from the plurality of satellites, wherein the assistance data comprises navigation data and impairment status of satellites in the geographical region of the mobile device;
• encrypt the assistance data;
• send, via the communication interface, the encrypted data to the mobile device in a point-to-point communication session interface between the mobile device and the server;
• and
• receive, via the communication interface, encrypted observable metrics of the signals from the plurality of satellites for the mobile device for the position determination of the mobile device.

A server configured for securing a Satellite Positioning System (SPS) for a mobile device, comprising:

• means for receiving from a plurality of mobile devices data collected from a plurality of satellites;
• means for determining assistance data for a geographical region of the mobile device based on the data collected from the plurality of satellites, wherein the assistance data comprises navigation data and impairment status of satellites in the geographical region of the mobile device;
• means for encrypting the assistance data;
• means for sending the encrypted data to the mobile device via a point-to-point communication session between the mobile device and the server;
• and
• means for receiving encrypted observable metrics of the signals from the plurality of satellites for the mobile device for the position determination of the mobile device.

A non-transitory computer readable medium including program code stored thereon, the program code is operable to configure a server for securing a Satellite Positioning System (SPS) for a mobile device, the program code comprising instructions to:

• receive from a plurality of mobile devices data collected from a plurality of satellites;
• determine assistance data for a geographical region of the mobile device based on the data collected from the plurality of satellites, wherein the assistance data comprises navigation data and impairment status of satellites in the geographical region of the mobile device;
• encrypt the assistance data;
• send the encrypted data to the mobile device via a point-to-point communication session between the mobile device and the server;
• and
• receive encrypted observable metrics of the signals from the plurality of satellites for the mobile device for the position determination of the mobile device.