PrivacySchneier on Security6 days ago
GPS As a Key Distribution Platform
1 min read
The U.S. military has likely broadcast encryption codes over public GPS for nearly 20 years, turning satellites into hidden numbers stations. Steven Murdoch discovered the system by matching a 2011 signal pattern with declassified documents on Over-the-Air Distribution and Rekeying systems, which replaced manual key distribution for military GPS receivers.
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