A novel color image LSB steganography using improved 1D chaotic map

Conventional one-dimensional (1D) chaotic map have a simple structure, which is easy to implement and has a low computational cost, but has a drawback that the range of chaotic behaviors is narrow and the distribution of key sequence is uniform. In order to overcome the drawback, we proposed an improved 1D chaotic system model and evaluate the proposed model through experiments with the logistic map and a sine map. Simulation and performance evaluation shows that the 1D chaotic map improved by the proposed model can overcome the existing defects sufficiently. We also proposed a color image LSB steganography algorithm using the improved 1D chaotic map. Through experiments, we confirmed the accuracy of the proposed color image LSB steganography algorithm. Experimental results proved that the algorithm has a better performance than the previous methods, showing an excellent performance against statistical analysis attacks. We also analyzed the effect of secret data type on the quality of stego image.