How to send Message Securily

We have seen that in many cases when we are sending message, we want that no one can see our message only receiver able to see those message for sending the message we can use cryptography and steganography is one of the technique of cryptography..
 So today we will learn about steganography and how the message will be send using this technique.

Steganography

Steganography is a technique of hiding data within data. Encryption can also be used in steganography to protect data to access the unauthorized user.
      Steganography can apply with images,audio,video files.Typically, however, steganography is written in characters including hash marking, but its usage within images is also common. At any rate, steganography protects from pirating copyrighted materials as well as aiding in unauthorized viewing.

Let's see how steganography will be apply with image.

Step1:- Open command prompt in your PC/Laptop.

Step2:- type

   echo  message >> image file name

ex.   echo " hello juliya how are you?" >> xyz.jpg

Now your message have written in the image and image is look like a simple image you can see your written message thru right click of image and then go edit with any text editor then in the last you will see that your message is write.