International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
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Volume 37 - Issue 7 |
Published: January 2012 |
Authors: Saeed Mahmoudpour, Sattar Mirzakuchaki |
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Saeed Mahmoudpour, Sattar Mirzakuchaki . Hardware Architecture for a Message Hiding Algorithm with Novel Randomizers. International Journal of Computer Applications. 37, 7 (January 2012), 46-53. DOI=10.5120/4623-6632
@article{ 10.5120/4623-6632, author = { Saeed Mahmoudpour,Sattar Mirzakuchaki }, title = { Hardware Architecture for a Message Hiding Algorithm with Novel Randomizers }, journal = { International Journal of Computer Applications }, year = { 2012 }, volume = { 37 }, number = { 7 }, pages = { 46-53 }, doi = { 10.5120/4623-6632 }, publisher = { Foundation of Computer Science (FCS), NY, USA } }
%0 Journal Article %D 2012 %A Saeed Mahmoudpour %A Sattar Mirzakuchaki %T Hardware Architecture for a Message Hiding Algorithm with Novel Randomizers%T %J International Journal of Computer Applications %V 37 %N 7 %P 46-53 %R 10.5120/4623-6632 %I Foundation of Computer Science (FCS), NY, USA
Steganography is the art of hiding information in a cover medium such that the existence of information is concealed. An image is a suitable cover medium for steganography because of its great amount of redundant spaces. One simple method of image steganography is the replacement of the least significant bit (LSB) of a cover image with a message bit. This represents a high embedding capacity but it is detectable by statistical analysis methods such as Regular-Singular (RS) and Chi-square analyses. Therefore, a new LSB algorithm is proposed here which can effectively resist statistical analysis. In this novel algorithm, every two sample’s LSB bits are combined using addition modulo 2 which is compared to the secret message. If these two values are not equal, their difference is added to the second sample. Otherwise, no change is made. This paper proposes a hardware realization of this new algorithm. Furthermore, two scalable pixel interleaver and novel message bit randomizer with two different stego-keys are designed. Pixel interleaver can improve resistance against visual analysis by random selection of pixels.