Exploring Non-Additive Distortion in Steganography
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F18%3A00323929" target="_blank" >RIV/68407700:21230/18:00323929 - isvavai.cz</a>
Result on the web
<a href="https://dl.acm.org/citation.cfm?id=3206015" target="_blank" >https://dl.acm.org/citation.cfm?id=3206015</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1145/3206004.3206015" target="_blank" >10.1145/3206004.3206015</a>
Alternative languages
Result language
angličtina
Original language name
Exploring Non-Additive Distortion in Steganography
Original language description
Leading steganography systems make use of the Syndrome-Trellis Code (STC) algorithm to minimize a distortion function while encoding the desired payload, but this constrains the distortion function to be additive. The Gibbs Embedding algorithm works for a certain class of non-additive distortion functions, but has its own limitations and is highly complex. In this short paper we show that it is possible to modify the STC algorithm in a simple way, to minimize a non-additive distortion function suboptimally. We use it for two examples. First, applying it to the S-UNIWARD distortion function, we show that it does indeed reduce distortion, compared with minimizing the additive approximation currently used in image steganography, but that it makes the payload more -- not less -- detectable. This parallels research attempting to use Gibbs Embedding for the same task. Second, we apply it to distortion defined by the output of a specific detector, as a counter-move in the steganography game. However, unless the Warden is forced to move first (by fixing the detector) this is highly detectable.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
10201 - Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)
Result continuities
Project
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Continuities
O - Projekt operacniho programu
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Proceedings of the 6th ACM Workshop on Information Hiding and Multimedia Security
ISBN
978-1-4503-5625-1
ISSN
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e-ISSN
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Number of pages
6
Pages from-to
109-114
Publisher name
ACM
Place of publication
New York
Event location
Innsbruck
Event date
Jun 20, 2018
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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