Abstract

In this paper, a method for hiding data by LSB Substitution in 32-bit images is proposed. By applying a Bit Permutation to the LSB Substitution method, the  onfidentiality of the information which is embedded in stego-image can be greatly improved. With this method the position of every bit of information in stego image is specified by a key. The mean-square-error and peak-signal-to-noise-ratio between the stego-image and the original image are presented. Also, the  xperimental results show a significant improvement in confidentiality with respect to the LSB Substitution alone.