ACTIVE ATTACK ON STEGANOGRAPHY CONTAINER
DOI:
https://doi.org/10.18372/2310-5461.18.4934Keywords:
steganography, steganalysis, wavelet transformAbstract
It was carried out passive and active attack on steganography container and hidden information was removed from the container. To determine the fact of addition of hidden information in container, rather for realization of passive attack, we used the method of statistic steganalysis, which is based on famous mathematical model of container. We concluded the decision about presence of hidden information in terms of visual comparison of empty container spectrum with the spectrum of container which can contain hidden information. The spectrum of filled container has high-frequency hits. Active attack realizes using wavelet transforms. Actual algorithm of lossy compression removes information, which was added to spatial domain image. Besides, at the cost of substitution of DCT-coefficients for wavelet transform coefficients, we achieved the coding of container. The compression of container is accounted for compression of the wavelet coefficient matrix, which is transmitted in the communication channel.
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