An LSB Data Hiding Technique Using Prime Numbers

Details An LSB Data Hiding Technique Using Prime Numbers An LSB Data Hiding Technique Using Prime Numbers

2010-03-29

arxiv.org/abs/1003.5509v1

Computer Science

Cryptography and Security

6 Pages, 7 Figures, Third International Symposium on Information Assurance and Security, August 29-31, 2007, Manchester, Unite

Scientific paper

In this paper, a novel data hiding technique is proposed, as an improvement over the Fibonacci LSB data-hiding technique proposed by Battisti et al. First we mathematically model and generalize our approach. Then we propose our novel technique, based on decomposition of a number (pixel-value) in sum of prime numbers. The particular representation generates a different set of (virtual) bit-planes altogether, suitable for embedding purposes. They not only allow one to embed secret message in higher bit-planes but also do it without much distortion, with a much better stego-image quality, and in a reliable and secured manner, guaranteeing efficient retrieval of secret message. A comparative performance study between the classical Least Significant Bit (LSB)method, the Fibonacci LSB data-hiding technique and our proposed schemes has been done. Analysis indicates that image quality of the stego-image hidden by the technique using Fibonacci decomposition improves against that using simple LSB substitution method, while the same using the prime decomposition method improves drastically against that using Fibonacci decomposition technique. Experimental results show that, the stego-image is visually indistinguishable from the original cover-image.

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