A NOVEL INFORMATION HIDING TECHNIQUE FOR SECURITY BY USING IMAGE STEGANOGRAPHY

In this paper a novel method is proposed to provide more security for the key information with the combination of image compression and data encryption method. This method requires less memory space and fast transmission rate because of image compression technique is applied. Steganography plays an important role in information security. Since the rise of the Internet one of the most important factors of information technology and communication has been the security of information. It is the art of hiding the fact that communication is takes place, by hiding information in other information. Many different file formats can be used, but digital images are the most popular because of their frequency on the Internet. For hiding secret information in images, there exist a large variety of steganographic techniques some are more complex than others and all of them have respective strong and weak points. Many applications have different requirements of the steganography technique used. Some applications may use absolute invisibility of the secret information, but others require a larger secret message to be hidden. This method has been implemented and tested on varies images and data. It provides better security for encrypted data and no distortion in the image quality.