Performance Evaluation Metrics onRaster Graphics withEncryption

Abstract

In daily life, the widely use of internet and smartphone has increased. Due to faster growth in the multimedia technology, digital images are widely used in different-different processes. Therefore, security of image data from unauthorized uses is important. Digital image encryption plays an important role in the field of information hiding. With the development of digital image encryption technology, we must seek a better image encryption technology. When the image is encrypted with graphics fusion technology, the cipher text presents a randomness which makes the possibility of deciphering reduced.  In this paper, the digital image encryption technology is studied with the DiskCryptoras a tool. The simulation experiments are carried out by using jpeg images and the result are analyzed from pixel correlation, key space size, request and response time, and key sensitivity. The result show that the algorithm used in this paper has a better security effect