NATO STANAG 4481 FSK KG-84 DECRYPTED !!!

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JEL
Posts: 127
Joined: Wed Feb 07, 2018 2:08 am

NATO STANAG 4481 FSK KG-84 DECRYPTED !!!

Post by JEL » Mon Apr 01, 2019 7:20 am

UPDATE: THIS WAS MEANT AS A 2019 APRIL-FOOLS JOKE :)
There is NO ACTUAL DECODING.



https://www.youtube.com/watch?v=joFENiW5FBs

Video demonstration of how using AI (artificial intelligence software) can decrypt the KG-84 encryption and present the actual broadcast message in a NATO STANAG 4481 transmission.

Software download links shown at end of video, but not placed directly in this text for security reasons.

The AI-decoder software, developed by JELAIR, makes use of VirtualAudioCable to feed the source-audio from SDR# into the commandline-decoder, which then exports decrypted audio into FLdigi.

The AI-decoder emulates the KG-84 chip and allows decoding by introducing an encryption-error, which halts the emulated chip's encryption-routine, thus 'fooling' the emulated chip into bypass-mode which leads to it decrypting the message instead (A safety-feature of the chip to make sure messages, potentially vital to a military mission, would not by accident become unreadable)

Surprisingly simple exploit the AI-software makes possible.

The AI-decoder has no GUI but is setup via a simple batch-script that defines the VB-cable setup (which obviously differs from computer to computer, depending on your hardware)

Tech-info is shown at the end of the video.

JELAIR/Company36 20190401
Last edited by JEL on Sat Jul 06, 2019 11:17 pm, edited 1 time in total.

Mustapha
Posts: 1
Joined: Sat Jul 06, 2019 8:59 am

Re: NATO STANAG 4481 FSK KG-84 DECRYPTED !!!

Post by Mustapha » Sat Jul 06, 2019 9:27 am

hello
I hope you are well, can you give me the script of AI ​​decoder
I can not find anything at the end of the video
thank you.

Username
Posts: 430
Joined: Sun Oct 09, 2016 7:27 am

Re: NATO STANAG 4481 FSK KG-84 DECRYPTED !!!

Post by Username » Sat Jul 06, 2019 11:06 am

Its just a Hoax.

JEL
Posts: 127
Joined: Wed Feb 07, 2018 2:08 am

Re: NATO STANAG 4481 FSK KG-84 DECRYPTED !!!

Post by JEL » Sat Jul 06, 2019 11:19 pm

Username wrote:
Sat Jul 06, 2019 11:06 am
Its just a Hoax.
Indeed :)

I have updated the original post since april 2019 is now long gone.

Take care people, don't trust everything you see on the internet (or anywhere else) ;)

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