Looking for seminar reports on message encryption using cheating text.

seminar reports on message encryption using cheating text

Message Encryption schemes currently being used encrypt the total message that needs to be transmitted. This project encrypts that part of the message which is confidential rather than the total message using the concept of cheating text. The concept of cheating text comes from Steganography, in particular data hiding. These ideas were initiated in a paper by Ch. Rupa and P.S. Avadhani. Plain text message is inserted into another text called the cheating text and the positions of the characters of the plain text are stored in another file the real message index file(RIF). The real message index file is then encrypted using an Elliptic Curve Cryptosystem. A hash value of the plain text is generated using the Message Digest Algorithm in order to provide authentication at both the ends. The encrypted file is sent to the receiver along with the cheating text and the hash value of the plain text. The receiver decrypts the RIF file and obtains the original message using the cheating text. The hash value is re-calculated at the receiver’s end to verify the message and hence authentication is achieved.