Information hiding using Key Dependent Improved Canny Edge Detection and RSA algorithm

Many potential problems have resulted from the improving Internet, such as the copy and corruption of digital information. Therefore, the information security is considered as one immediate topic. Cryptography and steganography are the most widely used techniques to defeat this threat. Steganography embeds message into a cover media and hides its existence. On the other hand, Cryptography involves converting a message text into a scribbled cipher. Both the techniques provide some security of data, neither of them is individually secure enough for sharing information over an unsecure communication channel and are vulnerable to intruder attacks. In this paper we have proposed a secure technique of image steganography i.e. Key dependant improved canny edge detection with RSA algorithm. The proposed technique enhances the security to new level as it provides authentication module too.