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Steganography is the technique of hiding secret data within an ordinary, non-secret, file or message in order to avoid detection; the secret data is then extracted at its destination. The use of steganography can be combined with encryption as an extra step for hiding or protecting data.The purpose of steganography is to conceal and deceive. It is a form of covert communication and can involve the use of any medium to hide messages. It’s not a form of cryptography, because it doesn’t involve scrambling data or using a key. Instead, it is a form of data hiding and can be executed in clever ways.As noted above , steganography is an effective and efficient way of hiding data, it is just protecting the data from the unauthorized or unwanted interception. But stego is merely one of many methods to defend the confidentiality of data. It is probably the best used in integration with another data-hiding method.
Steganography
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We have already seen a brief overview of data security and a brief introduction to cryptography in the previous article. The next basic security-related term worth noting is steganography. Basically, hing communications in a way that no one knows they exist in them is both art and science. So it is completely different from the encryption process. Now let’s dive into the details. Later in this post, we will see further the fundamental difference between password and steganographic security methods. So relax and read on.
What Is Steganography In The Field Of Security ?
Steganography is a technique of hing messages, files, and images within another message, file, or image. The word steganography is of Greek origin and means “secret writing” or “secret writing.” In other words, hing communication in such a way that bodily awareness knows it exists is both an art and a science. The purpose of hing messages, files, and images is to deceive the attacker, and not even allow the attacker to see another message hden in the original message. The main goal of steganography is to achieve high security and to encrypt sensitive data in all overlay media such as images, audio, video, etc., and send it through insecure channels such as the Internet. Even small changes in shorthand pictures or data can change the full meaning of the message. In steganography, the term steganalysis is similar to cryptanalysis in cryptography. Like cryptanalysis, the goal of steg analysis is to entify suspicious messages, files, and images, determine whether there is hden or encrypted information in those messages, and attempt to access those messages, files, and images. Attacks on steganography are very similar to attacks on cryptography/algorithms and employ similar techniques. The strength of a steganography algorithm depends on its ability to successfully resist attacks.
What Are The Attacks In Steganography ?
Following are some possible attacks in steganography: 1. Stego-Only attack In this type of attack, only media (files and images) containing hden data are available for analysis. This attack is also known as a visual attack. 2. File-Only Attack The attacker has access to the file, and he needs to determine whether a message contains hden information in the file. 3. Known Carrier Attack In this type of attack, a jetty analyst has access to the original image and an image containing hden information and can compare to accept the message. Compare covert objects (containing hden information) with overla objects and detect differences. This attack is also known as the master copy. An attacker may have both a copy of the file (that is, the encrypted message) and a copy of the original file. If the two files are different, an attacker can suspect that there must be hden information in the files. This attack can help an attacker to destroy hden information simply by replacing the hden information with the original message. 4. Reformatting attack The most popular attack on steganography is the reformatting attack, in which the attacker changes the format of the file (BMP, GIF, JPEG). 5. Destroy everything The attacker can simply destroy the message and all related information. This works fine because different file formats are used to store data in different ways. 6. Known Message Attack In this type of attack, the original message is known to the sender before it is embedded and transmitted over the Internet. 7. Multiple encoding of files The attacker receives n different copies of the file and n different messages. Some companies may include different tracking information in each file. Attackers keep track of all the data in transit and can then attempt to replace the tracked information with their own available information. 8. Compression Attacks One of the simplest attacks is to compress files. This type of attack attempts to remove irrelevant information from files during the compression process. So what’s the point of hing data if irrelevant information is removed?
What Is The Difference Between Steganography And Cryptography ?
Steganography is a technique of hing messages, files, and images within another message, file, or image. Cryptography is the science of secretly writing information/messages and making them unreadable. In steganography, only the sender and receiver know the existence of the message. In cryptography, the existence of encrypted messages is visible to the world. The techniques used to implement steganography are least significant bit (LSB), spatial domain, still image steganography, audio and video steganography. The techniques used to implement cryptography are substitution techniques, transpose techniques, RSA, DES, and AES. (All of this will be covered in subsequent articles) Hope you really enjoyed this article, stay tuned for more interesting stuff in this series. report this ad
What is steganography and why do they use it?
The purpose of steganography is to conceal and deceive. It is a form of covert communication and can involve the use of any medium to hide messages. It’s not a form of cryptography, because it doesn’t involve scrambling data or using a key. Instead, it is a form of data hiding and can be executed in clever ways.
How useful is steganography?
As noted above , steganography is an effective and efficient way of hiding data, it is just protecting the data from the unauthorized or unwanted interception. But stego is merely one of many methods to defend the confidentiality of data. It is probably the best used in integration with another data-hiding method.
What is steganography explain with suitable example?
In computer science, it refers to hiding data within a message or file. It serves a similar purpose to cryptography, but instead of encrypting data, steganography simply hides it from the user. Invisible ink is an example of steganography that is unrelated to computers.
What is steganography and its type?
Steganography is a technique of hiding communication by concealing the secret message into a fake message. The term Steganography has Greek influences which means “covered writing”. The main idea behind the Steganography is to prevent suspicion about the existence of the information.
What is steganography in security?
Steganography is the technique of hiding secret data within an ordinary, non-secret, file or message in order to avoid detection; the secret data is then extracted at its destination. The use of steganography can be combined with encryption as an extra step for hiding or protecting data.
What is OpenPuff used for?
OpenPuff is used primarily for anonymous asynchronous data sharing: the sender hides a hidden stream inside some public available carrier files (password + carrier files + carrier order are the secret key) the receiver unhides the hidden stream knowing the secret key.
What are the features of steganography?
- Hiding Capacity: This feature deals with the size of information that can be hidden inside the cover file. …
- Perceptual Transparency: Perceptual transparency is an important feature of steganography.
Which method of steganography is the best and why?
The most famous steganographic approach is the least significant bit (LSB) where LSB refers to the last or the right-most bit in a binary number. This approach replaces some LSBs of the cover image with the secret data bits of the hidden message. LSB is easy and simple in computations but the capacity is low.
Which method is used by steganography?
Answer: The Least Significant Bit technique( LSB) is most commonly used by steganography to hide text in an image file. In this method, the data is concealed by altering the last few bits in a byte required to encode a message.
What are the 5 types of steganography?
…
Text Steganography
- Format Based Method.
- Random and Statistical Generation.
- Linguistic Method.
What is steganography briefly explain any three techniques used?
These methods are i) Format Based Method; ii) Random and Statistical Method; iii) Linguistics Method. iii. Image Steganography: Hiding the data by taking the cover object as image is referred as image steganography. In image steganography pixel intensities are used to hide the data.
What is steganography in image processing?
Image steganography refers to hiding information i.e. text, images or audio files in another image or video files. The current project aims to use steganography for an image with another image using spatial domain technique. This hidden information can be retrieved only through proper decoding technique.
See some more details on the topic What Is Steganography In Data Security And Why It Is Important here:
What Is Steganography | Cybersecurity – CompTIA
The root “steganos” is Greek for “hden” or “covered,” and the root “graph” is Greek for “to write.” Put these words together, and you’ve got …
What is Steganography? Types, Techniques, Examples …
Today’s security-conscious environment is the eal place for trying out new techniques for hing sensitive information.
What is steganography? A complete guide to the ancient art of …
Steganography works by hing information in a way that doesn’t arouse suspicion. One of the most popular techniques is ‘least significant …
What are Steganography in information security? – Tutorialspoint
Steganography is an approach that facilitates concealing of a message that is to be kept secret inse other message.
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