International Journal of Computer Science Issues

More than a traditional journal...

The quick development of data transmission through the internet made it easier to send and receive the data accurately and in a faster way between the source and the destination. One of the most significant factors of the information technology and data communication is the security of the information. For security objectives the concept of steganography is being used. The importance of steganography is that it avoids drawing suspicion to the existence of a hidden message. Over the past few years, numerous steganography techniques that embed hidden messages in multimedia objects have been proposed. These techniques hide information or messages in images in such a manner that the alterations made to the image are perceptually invisible. In this paper, we proposed an image based steganography technique that combines cryptography and steganography and depends on modifying the pixel values slightly to contain the hidden data. Our main objectives are to enhance the security of the communication, maximize the embedding capacity and achieve a high degree of flexibility and invisibility.