Nov 28, 2011

Hide a image in other image

In the last post talking about steganography, previous post to complement good now let me explain how to hide one image inside another image

Well first we need a shell and wirte the next

cat your_image >> your_another_image

if we see in the header file is see what kind and see JFIF that means is a jpg file

if we see in the header of the other file see what kind and see PNG that means is a PNG file

And we see in the end of file see the file end "END" all the image png  begin and end with "PNG" and "END"

This case caught my attention because we can see in the end of the file exit a message of wikipedia

And if wee see the change in the image jpg appear in the end of the file the word END  and previously PNG

The steganography can have different use then i show you other method  like a LSB and other 

I recommend this program of steganography use LSB method work in ubuntu 

sudo apt-get install steghide  

Greetings i hope you liked :D


  1. Recuérdenme que en la clase de crypto debo ponerles a concursar uno contra otro en esteganografía. Les voy a dar un mensaje que deben ocultar en el archivo de su elección a cada uno y los demás intentan descubrirlo :)