Image steganography method

Picture steganography concept

seeing the name of a thing one thinks of its function , Is to hide the information you want to express in the picture .

Using tools

1、cmd command
2、steghide

Download url ;http://steghide.sourceforge.net/download.php

step

1、 Open Command Prompt , Enter into steghide Folder
2、 Input \steghide>.\steghide.exe embed -cf 2.jpg -ef 1.txt
Then give a password .
3、 Extract text ：wrote extracted data to"1.txt"
notepad 1.txt that will do

binwalk

stay ctf We have no password , Need binwalk This tool .
Be careful ： This tool needs python3 Environmental Science , For installation, please refer to the blog ：binwalk
usage ：
1、-e Decompose the compressed package
binwalk -e pcat.bin
2、-D perhaps –dd Decomposing a certain type of file （ stay windows The inside should be enclosed in double quotation marks ）
binwalk -D=jpeg pcat.bin
3、-M Recursively decompose the scanned file （ Follow me -e perhaps -D In combination with ）
binwalk -eM pcat.bin
4、-h Seek other usage