Acta Informatica Pragensia 2015, 4(3), 258-275 | DOI: 10.18267/j.aip.732335

Modifikácia steganografického algoritmu využívajúceho LSB použitím množiny stegomédií

Branislav Madoš, Mária Feková
Department of Computers and Informatics, Faculty of Electrical Engineering and Informatics, Technical University of Košice, Letná 9, 042 00 Košice, Slovak Republic

Ambícia získať možnosť ukrývať digitálne reprezentované informácie kódované ako sekvencie bitov v digitálnych krycích médiách je naplnená prostredníctvom viacerých steganografických algoritmov, vrátane algoritmu využívajúceho najmenej dôležitý bit jednotlivých dátových zložiek digitálnych médií - Least Significant Bit (LSB). Rozvinutím týchto algoritmov môže byť použitie viacerých krycích médií vo forme ich množín, do ktorých je ukrývaná informácia rozdistribuovaná pomocou viacerých distribučných funkcií. Predkladaný článok popisuje návrh steganografického algoritmu založeného na využití najmenej dôležitého bitu digitálnych médií (LSB) a definovaní troch distribučných funkcií. Súčasťou článku je aj predstavenie programového vybavenia, ktoré bolo v tejto súvislosti navrhnuté, implementované a otestované.

Keywords: Steganografia, Least Significant Bit, LSB, multi-carrier

Modification of Steganographic Algorithm Using LSB and a Set of Stegomedia

Ambition to achieve possibility to hide digitally represented information which is coded in bit sequences into digital cover media is fulfilled through a number of steganographic algorithms, including Least Significant Bit (LSB) algorithm. A further development of those algorithms can be seen in the use of multiple cover media in the form of their sets, into which digital information is distributed by the use of multiple distribution functions (multi-carrier steganographic algorithms). This paper describes design of steganographic algorithm that is based on the use of the Least Significant Bit (LSB) and three distribution functions, which allow to distribute digital information into the set of cover media. The part of this article is describing software solution which was designed, developed and tested as the part of this research.

Keywords: Steganography, Least Significant Bit, LSB, Multi-carrier

Received: October 31, 2015; Revised: November 22, 2015; Accepted: November 28, 2015; Published: December 31, 2015  Show citation

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Madoš, B., & Feková, M. (2015). Modification of Steganographic Algorithm Using LSB and a Set of Stegomedia. Acta Informatica Pragensia, 4(3), 258-275. doi: 10.18267/j.aip.73
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