Convolutional codes and steganography under linear systems theoretical point of view

In this work, we introduce an application of convolutional coding theory in steganography. As it is known, block codes are largely used for dissimulation of information using the steganographic process. Here, we suggest a steganographic protocol based on convolutional codes in which they are defined...

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Bibliographic Details
Authors: García Planas, María Isabel|||0000-0001-7418-7208; Um, Laurence Emilie; Soudi, El Mamoun; El Jouhari, Houda
Format: Article
Publication date:2020
Country:España
Institution:Universitat Politècnica de Catalunya (UPC)
Repository:UPCommons. Portal del coneixement obert de la UPC
Language:English
OAI Identifier:oai:upcommons.upc.edu:2117/340498
Online Access:https://hdl.handle.net/2117/340498
Access Level:Open access
Keyword:Coding theory
System theory
Steganography
Convolutional codes
Coding
Decoding
Syndrome
Linear systems
Codificació, Teoria de la
Sistemes, Teoria de
Àrees temàtiques de la UPC::Matemàtiques i estadística
Description
Summary:In this work, we introduce an application of convolutional coding theory in steganography. As it is known, block codes are largely used for dissimulation of information using the steganographic process. Here, we suggest a steganographic protocol based on convolutional codes in which they are defined as linear systems. The proposed decoding algorithm used for dissimulation is a linear decoding method, which has drastically decreased the time complexity compared to the Viterbi decoding algorithm, sometimes used in other cases. We can also denote that with the convolutional approach, we intend to take advantage of the time-depending transaction.