data hiding behind image (steganography)

Steganography is a method  of  hiding data in another message so that the very existence of  the data is concealed . Steganography is mainly used by hiding message in graphic images  .The least significant bit of each byte of the image  can be replaced with bits of the secret message .


lets see how  can  be hide message  behind the image.

required > one secret message txt file and  main image  file

* put the  secret.txt and  main.jpg on  the desktop

 this  is  secret  message  name as  secret.txt file  and  another  is  image  file  behind  which secret message are to hide in  my  case i  am using  the  image  file name  as  main.jpg

* open cmd (command prompt)
* type "cd Desktop"  (withot quetetion)
* type again  "copy /b main.jpg + secret.txt  steg.jpg

Hide data using NTFS stream.

NTFS file system in windows allows you to store data behind a file name with the use of a stream name it's not detectable browsing the file system  any where within windows . It can be access it with secret key which are name of the stream

NTFS file system stream contain the data that is written to a file .