Hexdump of all files start with 8dig hexnum
For hiding data in files like jpeg,bmp,wav and AU Encrytion
steghide -cf imagefile -ef textfile
cover file : the open that appears embed file : The one that we want to hide
here cf is for coverfile and ef is for embed file
Decryption
steghide extract -sf imagefile
exiftool imgfile Binwalk extracts all the data in a image binwalk -e imgfile
nmap -