Ghetto Covert Channels
From
warmfuzzy@700:100/0 to
All on Fri Jul 6 21:47:04 2018
Have you ever thought to yourself, "wouldn't it be cool if I could send
someone a communication without it being detected and without having some super elite kit?" That will be described here.
Tools:
- $400-$1200 : computer
- $FREE : morse code generator like Morse Cat or something similar
- $400 Hi-Fi WAV/FLAC player
- $FREE : Audacity audio editor
- Specs of lower quality may still work with this
- $140 Whole House FM Transmitter
Here' how:
- use the morse code generator to beep out the full message from your text, recording this to a WAV or FLAC file.
- compress the wave so it compresses the audio in time, so a beepout that took 5 minutes can be shrunk to 10 seconds
- copy this (uncompressed) to your HiFi FLAC/WAV player
- plug your audio player into the Whole House Transmitter
- turn on the Whole House Transmitter right upon nearing your destination
- press play on the music player, transmitting for the 10 seconds only, maybe this will result being on air for up to 15-20 seconds but you should try to keep it to a minimum.
- turn everything off and drive away
You are now a Ghetto Homey-G kid with some mad skillz :)
This is for educational purposes only, and if you do follow these
instructions please don't transmit anything illegal in any way, shape, or
form.
This has the following benefits:
- Its on the FM band so your signal can be lost in the great variety of stations - Its fast, this would quality as a "burst transmission"
- its cheap and you don't have any government kit to expose your
affiliations with
- There's nothing illegal about this setup, apart from what you might transmit - the transmission is low enough power that it won't propagate very far, just far enough to reach a builing a few 20-40 meters away (depending on the
antenna used for FM reception).
- you could setup a time/place to do the transmission so that both you and
your friend are near each other for a very short period of time.
I hope that this makes you think just how easy a Ghetto Covert Channel can be to make and surprisingly, how completely legal it is. Once a person has mastered the description of the system above you can probably use this same setup more efficiently compressing a half hour or so into ten seconds.
source: open source research
--- Mystic BBS v1.12 A39 2018/04/21 (Linux/64)
* Origin: Sp00knet Master Hub [PHATstar] (700:100/0)