ROBUSTNESS INCREASE OF DISCRETE COSINE TRANSFORM ALGORITHMS AGAINST FREQUENCY DOMAIN ATTACKS

Prokhozhev Nikolai N, Mikhailichenko Olga V, Korobeynikov Anatoliy Grigorievich

2009 , VOLUME 09, NUMBER 2 ( MARCH-APRIL )

ISSN 2226-1494 (print), ISSN 2500-0373 (online)

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Nikiforov
Vladimir O.
D.Sc., Prof.

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ROBUSTNESS INCREASE OF DISCRETE COSINE TRANSFORM ALGORITHMS AGAINST FREQUENCY DOMAIN ATTACKS

N. N. Prokhozhev, O. V. Mikhailichenko, A. G. Korobeynikov

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Abstract

This article describes a way to increase a robustness of discrete cosine transform (DCT-based) algorithms. The Koch algorithm is used to show robustness against frequency domain attacks. The article illustrates a relationship between robustness and area of used DCT coefficients. JPEG compression, white noise, filters and resizing are used as external attacks. The ways of robustness increase are considered by optimal decision of embedding domains.

Keywords: steganography, JPEG compression, DCT-base algorithms.

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