>>33499
>TEMPEST COMSEC
Nice. Thank you.
I didn't want to read an Air Force manual on cabling highly secure cryptographic systems so went to this simplified explanation (pic related)
from cryptography.wikia.com/wiki/RED/BLACK_concept . It says:
"The RED/BLACK concept refers to the careful segregation in cryptographic systems of signals that contain sensitive or classified plaintext information (RED signals) from those that carry encrypted information, or ciphertext (BLACK signals).
In NSA jargon, encryption devices are often called blackers, because they convert RED signals to BLACK. TEMPEST standards spelled out in NSTISSAM TEMPEST/2-95 specify shielding or a minimum physical distance between wires or equipment carrying or processing RED and BLACK signals.[1]
Different organizations have differing requirements for the separation of RED and BLACK fiber optic cable. RED/BLACK terminology is also applied to keys.
BLACK keys have themselves been encrypted with a key encryption key (KEK) and are therefore benign.
RED key is not encrypted and must be treated as highly sensitive material."
</endquote>
So RED signals are plaintext. Classified info would normally be handled in an encrypted (BLACK) form. To view it, the classified info would be decrypted within a TEMPEST secured area. So decrypted classified data is RED, and the areas, circuits, components and equipment in which unencrypted national security info is being processed, is also called RED.
Do we now understand what Q means by RED-RED?
As in
RED RED 9/11
R
R E D
D
RED CROSS RED RED
I see 16 instances of RED in /qcodefag.github.io/?q=RED
Can you find them all?
Are they in several different contexts?
Re-review RED_RED stringer.