Steganography and Digital Watermarking

From Computing and Software Wiki

Steganography and digital watermarking are both forms of information hiding where the context can be viewed as keeping the information a secret or making the information subtle respectively. Both these methods have been around for a long time, at least several centuries, however they have only gained worldwide popularity in the digital world since roughly the mid 1990s. With new technologies constantly emerging, these two methods have been used to prevent theft, prevent plagiarism, track, and hide secrets.

Contents 1 History 2 Applications 2.1 Steganography 2.1.1 Protection of Data Alteration 2.1.2 Confidential Communication 2.1.3 Media Database Systems 2.1.4 Access Control 2.2 Watermarking 2.2.1 Broadcast Monitoring 2.2.2 Owner Identification 2.2.3 Proof of Ownership 2.2.4 Transaction Tracking 2.2.5 Content Authentication 2.2.6 Copy Control 2.2.7 Device Control 2.2.8 Legacy Enhancement 3 Properties 4 Models and Techniques 5 Countermeasures

History

Test

Applications

Steganography and digital watermarking can be broken down into four different subcategories in which the existence of the technique is either known or unknown to the public.

Knowing the subcategories allows for the following possible applications for both steganography and digital watermarking. Some applications may use both techniques depending on the function required.

Steganography

Some applications of steganography are:

Protection of Data Alteration

Confidential Communication

Media Database Systems

Access Control

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Watermarking

Some applications that use digital watermarking are:

Broadcast Monitoring

Owner Identification

Proof of Ownership

Transaction Tracking

Content Authentication

Copy Control

Device Control

Legacy Enhancement

Properties

Models and Techniques

Countermeasures

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