In this article, we will discuss three methods through which you can encrypt your confidential files into images, both through the Ubuntu UI and the command line. In Steganography, however, the third person would not even be aware of the fact that a seemingly harmless looking image or audio file carries a secret message or a file embedded in it. They can even break the code and get through the information by putting some hard work. Steganography is preferred over cryptography because, in the later, an adversary will know that something was hidden in a text or file. This type of encryption where you hide one file securely into another is called Steganography. You can simply embed the confidential data, along with a password or passkey so that only a trusted person can open that file. This is also pretty helpful when you want to convey a private message or send a file through the network to another person without compromising its security. One way of doing this is hiding files and secret messages inside other existing files such as images and audio. You can also install it using your default package manager.At times we need to encrypt highly confidential data on our systems in a way that no other person using our system can tell that we have hidden any information. You can read the official documentation available here: Outguess is a widely used tool in BSD systems. It mainly supports files such as JPEG and NETpbm formats. The Outguess tool allows you to hide data in redundant bits of existing files. We can also use a tool to perform image steganography. How to Hide Files in Images Using Outguess To view the files, unzip the image containing the hidden files. Once you have hidden the files, remove all other raw files to ensure security. Next, launch the terminal and navigate to the directory location where the zip and the image are.Īll you have to do now to hide the files is concatenate the zip and the image to an appropriately named image-you can call the image anything you want. Now move the compressed file and the image you wish to use to hide the files into the same directory. Next, compress the directory into zip format. Start by creating a directory and add all the files you wish to hide. To do this, you will need to have a zip file containing all the files you wish to hide and an image. The first method we can use to hide files inside an image is the cat command in Linux. Having looked at what steganography is and its pros, let’s get rollin’ in the deep: How to Use the Cat Command to Hide Files in Images Once a file is hidden, it remains in that state until exposed.Steganography does not attract attention compared to other methods of encryption.Some of the other advantages of steganography include: For example, a malicious user is likely to ignore a secret document hidden inside an image of your cat than a file encrypted with GPG. Steganography is much more advantageous compared to encryption. Although steganography is an old way of hiding files and messages, it can be very useful when working in an unsecured environment. Steganography refers to the process of hiding a file, whether a video, image, audio, or text, inside another file. That said, disguising private files you want to secure is better than leaving them exposed. NOTE: The methods discussed in this tutorial do not guarantee 100% security a security professional or forensics analyst can crack them. For this tutorial, we will look at how to hide files in images as a bonus, we’ll also discuss how to hide files in audio files. This tutorial discusses how to protect and secure your files by hiding them inside other files. Given this, even if you do not share your computer with others, it’s essential to treat your security as a high priority and secure your files with cryptography and encryption methods. On these devices, we keep personal information and private files not intended for public access. Today, we use personal computers as workstations and personal devices.
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