top of page

Steganography

Did you ever want to send a secret message to someone?

Here is a fun way to do it. You can hide a secret text message in audio file.


What do you need?


Coagula is an image synth and Audacity and Spek are Spectrum Analyzers.

All are freeware!


STEP-1:

- Open mspaint.exe and set the pictures size to something like: 500 x 300 Pixels;

- Your background need to be all black;

- Draw something or type some text at the TOP of picture;

- Save your picture as a BMP file.


STEP-2:

- Import your BMP file into Coagula;

- Click on a "Render image without blue/noise" button - that will render your image to .WAV file;

- Save your WAV file.


When audio is played, it will not make any sense.

It will sound similar to Dial Up modem...


STEP-3:

- Import your audio file into Audacity or Spek;

--Into Audacity, click on a little arrow next to the files name and choose Spectogram.

(i rather Audacity...)


Now you should see your hide message:


-------


=== EXTRA @ Capture the Flag ===


Listen to the sound below and follow the instructions.

The final result is a phrase with 47 characters.


If you did it, type the phrase in the comment...

Good luck!


603 views0 comments

Recent Posts

See All

MacOS | Recording a Packet Trace

A packet trace is a record of traffic traveling across the network. It’s useful for investigating complex network problems related to both correctness and performance. Once you start a packet trace on

DNS Guard

Absolutely everything is connected to the internet these days, from TV to smart light bulbs, from mobile devices to smart cars. Given those ads and ad trackers are everywhere on the Internet, a browse

Cyber Security Interview, Q&A

Can you explain the difference between symmetric and asymmetric encryption? When would you use one over the other? Answer: Symmetric encryption uses a single key to both encrypt and decrypt data, whil

Comments


bottom of page