What is steganography in cryptography?

What is steganography in cryptography?

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 the difference between cryptography and steganography?

The steganography and cryptography are the two sides of a coin where the steganography hides the traces of communication while cryptography uses encryption to make the message incomprehensible. The steganography does not employ changes in the structure of the message.

What is an example of steganography?

Steganography has been widely used for centuries. Some examples include: Hidden messages on a paper written in secret inks. Hidden messages distributed, according to a certain rule or key, as smaller parts (e.g. words or letters) among other words of a less suspicious cover text.

What is OpenPuff used for?

OpenPuff is a prevailing data hiding application made easy, safe and free that allows you to hide data into encrypted files in order to send it to other users. This application aims to protect both secret messages and the persons who are exchanging messages.

What are the advantages of steganography?

The advantage of steganography, over cryptography alone, is that messages do not attract attention to themselves. Plainly visible encrypted messages—no matter how unbreakable—will arouse suspicion, and may in themselves be incriminating in countries where encryption is illegal.

Why is steganography used?

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.

What carrier files can OpenPuff use?

OpenPuff is freeware and provides the user with the ability to encrypt and hide data in audio (wav), image (bmp, jpg, png), and stream (Mp3, Mp4, Vob) carrier files, as well as in pdf files and a few other file types as well.

What is a carrier in OpenPuff?

OpenPuff supports many carrier formats that are.  Images (BMP, JPG, PCX, PNG, TGA)  Audio support (AIFF, MP3, NEXT/SUN, WAV)  Video support (3GP, MP4, MPG, VOB)

Where is steganography used?

Steganography is used in almost every type of file you can imagine, including: Image files. A few pixels within the image are shifted, and each one represents a letter of the alphabet. An outsider might not see the changes, even when looking hard for them.

What are the applications of steganography?

Applications of Steganography.

Which technique is used in steganography?

Technical steganography uses scientific methods to hide a message, such as the use of invisible ink or microdots and other size reduction methods. This chapter will not address technical steganography methods.

What is OpenPuff tool?

OpenPuff Steganography and Watermarking, sometimes abbreviated OpenPuff or Puff, is a free steganography tool for Microsoft Windows created by Cosimo Oliboni and still maintained as independent software.

How can steganography be detected in images?

How to Detect Steganography. The easiest way for a SOC to detect steganography is to simply invest in an email security or data-loss prevention tool that has such capabilities built in. All you have to do is point the alerts to your monitoring system and respond.

How does image steganography work?

In image steganography, a message is embedded into an image by altering the values of some pixels, which are chosen by an encryption algorithm. The recipient of the image must be aware of the same algorithm in order to know which pixels he or she must select to extract the message.