| CPC G06K 7/10722 (2013.01) [G06F 21/552 (2013.01); G06F 21/57 (2013.01); G06F 21/602 (2013.01); G06F 21/64 (2013.01); G06K 7/1413 (2013.01); G06K 7/1417 (2013.01); H04L 9/30 (2013.01); H04L 9/3247 (2013.01); G06F 2221/034 (2013.01)] | 16 Claims |
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1. A method for securely monitoring an air-gapped machine, the method comprising:
generating a status message representing a state of an air-gapped machine disposed in a secure environment accessible to only authorized users;
converting the status message to a visual code;
encrypting the visual code using an encryption key stored on the air-gapped machine;
displaying the visual code to a display monitor connected to the air-gapped machine, wherein the splay monitor connected to the a ir achine is inside the secure environment;
capturing image data of the visual code at a camera connected to a monitoring machine, wherein the camera is positioned to prevent an attack from occuring in a line of sight between the camera and the display monitor connected to the air-gapped machine; and
transmitting the image data to the monitoring machine, thereby causing the visual code to be accessible by a user of the monitoring machine; and
decrypting the status message included in the visual code using a decryption key stored on the monitoring machine.
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