In this paper, we propose a new steganography scheme for hiding a piece of critical information in a host binary image (such as facsimiles). A secret key and a weight matrix are used to protect the hidden data. Given an image block of sizem n, our scheme can hide as many as blog2(mn+ 1) bits of data in the image by changing at most 2 bits in the image. This scheme, as compared to an existing sc...

This paper presents two methods for encryption and decryption of images using XOR operation. In the first method the original image is encrypted by the key image using XOR operation and decryption process also uses the same key image with XOR operation. In the second method one of the bit planes of the key image is used for encrypting the bit planes of the original image and shuffling is done f...

With the rapid expansion of electronic data transmission, unauthorized access is growing. Information security against unwanted becoming increasingly essential in storage and transfer. Images are a common type information that used almost every aspect life, so image critical. In this article, we propose an encryption technique uses symmetric method based on XOR operation between plain another w...