Improve Image Security in Combination Method of LSB Stenography and RSA Encryption Algorithm

Abstract

Images are the most well-known methods of correspondence utilized in different fields, such as clinical, research, mechanical, military and more. In the period of data innovation, the most fundamental part of data trade and correspondence is the Internet. With the headway of data innovation and the web, computerized media has gotten one of the most notable information move devices, however it actually faces various difficulties including confirmation issues, furthermore change, copyright assurance. Stenography and cryptography are the most popular technique of image or data security. In cryptography asymmetric RSA algorithm is one of the best algorithms to use for image encryption purpose. It is very difficult for unauthorized person to get the data from RSA encrypted data. In stenography LSB technique is most popular and secure to hide an image in an image. So, in this paper, present the improve image security technique in combination method of LSB stenography and RSA encryption algorithm. First hide an image into an image using the LSB technique, after that get the embedded image in which secrete image is hidden into the cover image. So now apply the asymmetric RSA encryption algorithm on the embedded image to get the cover image. Using this method now the security of the secrete image is more improved which is very difficult to unauthorized person to creak it.