Patent ID: 9521120
Filing Date: 2016-12-13
CPC Classification: H04L

Claim Text:
1. A secure system for transmitting message data from a secure computer on a secure network to anon-secure computer on a non-secure network comprising: a one-way communication link from the secure computer directly to the non-secure computer, wherein the one-way communication link is configured to provide the only communication between the secure computer and non-secure computer; a predetermined non-routable communication protocol known by both the secure computer and the non-secure computer; and wherein said secure computer is configured to transmit a message including said message data and error detection information multiple redundant times to the non-secure computer according to the predetermined protocol, said non-secure computer is configured to identify, decode, and verify message data that has been correctly transmitted according to the predetermined protocol, and further configured to discard message data that has not been correctly transmitted according to the predetermined protocol, and to store message data that has been transmitted correctly according to the predetermined protocol, the secure computer receives no feedback data from the non-secure computer, each cycle of transmission begins with a newest pending message being transmitted first and followed by an older pending message, which has not yet been transmitted a pre-determined number of times, and the predetermined non-routable communication protocol does not include a data field that facilitates routing of the message over a packet routing network.