Abstract
In this study, Multiple-Chaotic maps were merged by using multiplicative-additive form to generate the
 chaotic sequences which are used to track the addresses of shuffled bits in steganography. Three techniques are
 introduced for image steganography in the spatial domain. The first system is based on the well-known LSB
 technique, the second system is based on looking for the identical bits between the secret message and the cover
 image and the third system is based on the concept of LSB substitution, it is employed the mapping of secret data bits
 with cover pixel bits. It was tested and evaluated security levels for the proposed techniques by using the Peak
 Signal-to-Noise Ratio (PSNR), Mean Square Error (MSE), histogram analysis and correlative analysis and tested the
 Chaotic sequences generated by using correlation, Lypaunov exponents, Poincaré section and 0-1Test. The results
 show that the proposed methods perform better than existed systems.
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