wavSteg

A command line interface based program for wav audio Steganography.
it uses an algorithm that I've developed in which there are 2 steps to encoding an wav file.

🔎 find closest ascii character in PCM data, and insert value to the corresponding index.
📌 Mark the previous index

Limitations And Encoding / Decoding times

Since the program stores the data linearly and depends on the previous encoded index, doing so makes it a whole lot more diffcult to make the program multi-threaded which increases the compute time. however, since the index is cached the encoding computation isn't relooping the entire PCM data, which makes it easier to compute.

Installation

1. Install go-lang from offical website
   https://go.dev/doc/install

2. build program go build wavSteg.go

Running the Program

1. Place .wav file to encode inside input folder.
2. Place text file(or any other file that you can read from) inside input folder.

   Usage:
  -audio string
    	Audio file name
  -decode
    	Decode flag (default true)
  -encode
    	Encode flag
  -message string
    	Encode message with Command Line Interface message
  -tfile string
    	Encode message with provided text file name

encoding example:

./wavSteg -audio=input/sample-file-2.wav -tfile=input/toEncode.txt -encode=true

./wavSteg -audio=input/sample-file-2.wav -message "hello world!" -encode=true

decoding example:

./wavSteg -audio=enc_file.wav -decode=true

Encoded audio and Decoded file will be saved to results directory.

Disclaimer

This program is a proof-of-concept, and should not be intended for transfring important information, and I won't be liable for any damagaes caused by this program.

Copyright

This software is licensed under MIT. Copyright © 2022 Rani Giro