US Patent 10999262 High assurance tactical cross-domain hub

In general, the techniques of this disclosure describe a hub device that is configured to receive data packets from both secured client devices and non-secured client devices. The hub device may send the data packets from the secured client devices to a host device. For the data packets from the non-secured client devices, the hub device may first process the data packets to ensure the integrity of the received non-secure data packets and then send the non-secure data packets to the host device once the hub device determines that the non-secure data packets meet some threshold level of integrity.