PROVIDE SECURE AUTHENTICITY FOR PROPAGATING INFORMATION

The data transfers using internet via EMail is rapidly growing. So many business people and individuals using internet to transfer the documents (e.g., letters, certificates etc.). Security is an important issue while transferring data using E-mail because any unauthorized person can hack the data. Consider a method for preventing E-fraud in which the document is scanned and generating an image which is formatted as JPEG or PDF file. The image (scanned document) is converting in to ciphertext using asymmetric encryption algorithm. The encrypted information is then hiding in to a host image using steganography. In steganography use Least Significant Bit algorithm to hide the ciphertext in to a host image, this image is called as stegoimage. The stegoimage is sent as an attachment to destination through email using Simple Mail Transfer protocol. It provides higher security to protect the data from hackers. Then download the stegoimage from the email, using steganography to extract the ciphertext from the host image. Decryption is ccompanished by convert the ciphertext in to image (scanned document). In this project focus the secure authentication of E-document (eg. letters, certificates) that are communicated over the internet.