Abstract:
The Internet is developing faster than any other preceding technology. The security for the
transmission of messages has now been elevated to the top priority status as the Internet has
emerged as the primary means for exchanging sensitive information. Image steganography
has become a premier method for information concealment in order to protect the security of
transmitted data. Steganography is the technique of covert communication, which is to hide
the existence of a secret text within any computer-based media to keep away from
recognition, the restricted information is then separated into its previous form. Steganography
can also be used in addition to encryption to further conceal or safeguard the secret data. The
abstract of this paper means to propose another technique for information concealing in view
of a matrix based way to deal with the concealing of the secret information in variety of color
images using warnsdorff's knight’s tour algorithm. The logistic map function, a type of
chaotic algorithm that exhibits the butterfly effect, is also used to construct the cover image's
pixels. The advantage of this method over the traditional LSB method is that we do not need
to encrypt the data before beginning the primary steganography process because the data is
scrambled in the image in such a way that makes unintentional decryption via steganalysis
assaults nearly impossible. To evaluate our tool, we use a different type of ASCII value and
embed it into a randomly generated image. And we successfully, extract the data from the
stego image with data loss. This tool can hide data more securely and extract data more
efficiently. The results show that the proposed method has achieved MSE 39.307 and PSNR
32.186 DB. This means that compared to other methods(LSB for example) ours have a
correlation between pixels in the encrypted image which is negligible compared to the
original image.
