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Capacity of steganographic channels (2005)
| Content Provider | CiteSeerX |
|---|---|
| Author | Background, A. Pearlman, William A. Harmsen, Jeremiah J. |
| Abstract | Abstract—This work investigates a central problem in steganography, that is: How much data can safely be hidden without being detected? To answer this question a formal definition of steganographic capacity is presented. Once this has been defined a general formula for the capacity is developed. The formula is applicable to a very broad spectrum of channels due to the use of an information-spectrum approach. This approach allows for the analysis of arbitrary steganalyzers as well as nonstationary, non-ergodic encoder and attack channels. After the general formula is presented, various simplifications are applied to gain insight into example hiding and detection methodologies. Finally, the context and applications of the work are summarized in a general discussion. Index Terms—Steganographic capacity, stego-channel, steganalysis, steganography, information theory, information spectrum |
| File Format | |
| Publisher Date | 2005-01-01 |
| Publisher Institution | Proceedings 7th ACM Workshop on Multimedia and Security |
| Access Restriction | Open |
| Subject Keyword | Example Hiding Arbitrary Steganalyzers Steganographic Channel Index Term Steganographic Capacity Information-spectrum Approach General Formula Attack Channel Information Spectrum Detection Methodology Information Theory Various Simplification Steganographic Capacity Central Problem Formal Definition Non-ergodic Encoder General Discussion Much Data Broad Spectrum |
| Content Type | Text |
| Resource Type | Conference Proceedings |
