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What is Steganography?
 
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Open communication
Anyone between the sender and the receiver notices the flow of information and can read its content.
Examples: postcard, E-mail
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Encrypted communication
Anyone between the sender and the receiver notices the flow of information but cannot read its content.
Examples: envelope, encrypted E-mail
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Hidden communication
Nobody neither notices the flow of information nor has the faintest idea about its content.
Examples: invisible ink, steganography
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In brief: |
Steganography science deals with information hiding, e. g. by embedding confidential messages in unsuspicious data like image or audio files. |
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