![]() Network or Protocol Steganography − It involves concealing data by using a network protocol like TCP, UDP, ICMP, IP, etc., as a cover object. Video steganography typically employs the following file formats: H.264, MP4, MPEG, and AVI.ĥ. Discrete cosine transform (DCT) is commonly used to insert values that can be used to hide the data in each image in the video, which is undetectable to the naked eye. Video (a collection of still images) can function as the "carrier" in this scheme. Video Steganography − Video steganography is a method of secretly embedding data or other files within a video file on a computer. Its typical uses involve media playback, primarily audio clips.Ĥ. Watermarking is a technique that encrypts one piece of data (the message) within another (the "carrier"). Used digitally, it protects against unauthorized reproduction. Audio Steganography − It is the science of hiding data in sound. Stego-Key - Messages can be embedded in cover images and stego-images with the help of a key, or the messages can be derived from the photos themselves.ģ.Stego-Image − A stego image is an image with a hidden message.The message may be in the form of standard text or an image. Message - Real data that you can mask within pictures.Cover-Image - Unique picture that can conceal data.The various terms used to describe image steganography include: Since the computer description of an image contains multiple bits, images are frequently used as a cover source in digital steganography. Pixel intensities are the key to data concealment in image steganography. Image Steganography − The second type of steganography is image steganography, which entails concealing data by using an image of a different object as a cover. In this method, the hidden data is encoded into the letter of each word.Ģ. Text Steganography − There is steganography in text files, which entails secretly storing information. It’s a helpful bit of knowledge, limited only by the type of medium and the author’s imagination.Īlthough the technique is centuries old, it’s still useful enough to make us justifiably pose the question, “What is steganography in cyber security?” But before we explore its uses in today’s cyber security field, let’s get more acquainted with the overall concept by looking at some steganography examples, then wrap things up with a fun little exercise.Īlso Read: Why is Cybersecurity Important in 2022? Different Types of Steganographyġ. You can use steganography to hide text, video, images, or even audio data. ![]() ![]() It comes from the Greek words steganos, which means “covered” or “hidden,” and graph, which means “to write.” Hence, “hidden writing.” Steganography is a means of concealing secret information within (or even on top of) an otherwise mundane, non-secret document or other media to avoid detection. The sensitive information will then be extracted from the ordinary file or message at its destination, thus avoiding detection. Steganography is an additional step that can be used in conjunction with encryption in order to conceal or protect data. What Is Steganography?Ī steganography technique involves hiding sensitive information within an ordinary, non-secret file or message, so that it will not be detected. That’s why we are about to explore the concept of steganography, including what is steganography, what techniques it entails, and how it’s used in today’s cybersecurity efforts. After all, we need to stay one step ahead of hackers and would-be data thieves! Have you ever heard of the idea of hiding something in plain sight? Today’s security-conscious environment is the ideal place for trying out new techniques for hiding sensitive information. ![]()
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