A New Method of Steganography using Logistic Map

摘要

In the present study, a new method of steganograghy through the use of chaos signals was proposed. The so called method uses a chaos signal called "logistic map" to make an order of adding the encrypted text to the image. The encrypted text, which is a sequence of numbers, is first converted into a 3-piece code and then is added to the least significant bits (LSB) of the image after the dislocation on the basis of the order created by chaos signals. Empirical results show that the image quality still remains quite acceptable after the addition of an encrypted text. High degree of security due to changes in the order and sequence of text addition by chaos signals, and high degree of PSNR after text addition are as the major advantages of the method.