• DAVID MITLYNG

Weekly Takeaways-January 25, 2022

Updated: Mar 11

Theme of the Week

The Clock Lock All networks, communications, and power grids require a common time standard. This is the role that GPS fell into - a global clock delivered from space via a weak RF signal. But this signal is woefully insecure and easy to jam and spoof (see below). Information security comes from the CIA triad (no, not that CIA), to protect against outsiders getting access to (confidentiality), modifying (integrity), and disrupting access to your information (availability). The signal from GPS does not meet this security level because it is:

  • Unencrypted (at least for civilian users), breaking Confidentiality

  • Unauthenticated, breaking Integrity

  • Easy to jam, breaking Availability

But a future timing service for fixed enterprise users has to be secure - there is too much at stake. A new technology is needed. Industry News

The More You Know...

The Association of Old Crows hosted an interesting presentation on the history of GPS spoofing. According to the Resilient Navigation and Timing Foundation, jamming is relatively commonplace. While the US does not track this, the European GNSS Agency evaluated nearly 451,000 reported jamming events and found that roughly 10% were intentional. But spoofing, the ability to fake a GPS signal, is more sophisticated. As a concept, it has been around a long time and was even featured in the 1997 James Bond movie "Tomorrow Never Dies." But over the last decade it has become a reality: