US Patent 10491569 Secure transfer of independent security domains across shared media

This disclosure provides systems, methods, and computer program products for secure transfer of security domains across shared media. A secure domain interface is associated with a security domain. The secure domain interface receives a secure network data packet and appends a first data frame. A security interface receives the internal data packet and appends a second data frame to the internal data packet. The second data frame generates an open network data frame securely including payload and routing information from the secure network data packet. The security interface receives open network data frames, authenticates and extracts internal data packets, and routes internal data packets to the secure domain interface. The secure domain interface receives internal data packets, authenticates and extracts secure network data packets, and routes secure network data packets to secure network devices in the security domain.