Survey of Proposed Technique for Image Authentication with LDPC

For Image Authentication Problem using Encryption Technique and LDPC Source Coding is necessary in Content Delivery via unsecure medium, Like Peer-To-Peer (P2P) File Sharing. These transferring Digital Files from one Computer to another. Images are the Most Important Utility of our life. They are used in many applications. There are Two Main Goals of Image Security: Image Encryption and Authentication. More different encoded versions of the original image available.In addition, unsecure medium might tamper with the contents.. We propose an efficient, accurate, reliable process using encryption and LDPC source coding for the image authentication problem. The key idea is to provide a Slepian-Wolf encoded as authentication data which is encrypted using cryptography key before ready to send. The key used for encryption is usually independent of the Plain-Image. This can be decoded with side information of an authentic image.