What is Steganography?

It 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.

·       Technical steganography

·       Linguistic steganography

Types of steganography

·       Text: It includes hiding data within the text files

·       Image: It can hiding the information by taking the cover object as image is defined as image steganography. In image steganography, pixel intensities are used to conceal the data

·       Audio: Audio Steganography is the technology of embedding information in an audio channel

·       Video: In this method, video (set of pictures) can be used as carrier for hiding the information

·       Network Protocol: It includes hiding the information by creating the network protocol including TCP, UDP, ICMP, IP etc. as cover object

Steganalysis

Steganalysis is the process of detecting hidden data which are crested using steganography.

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