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In this paper a new message encryption scheme using a concept called cheating text is proposed. The original message is embedded in a meaningful text called cheating text. The positions of the characters of the plain text in the cheating text are stored as real message index file (RIF). This file is encrypted and sent along with the cheating text. The receiver, in turn, decrypts the RIF table and gets back the original message from the received cheating text. Authentication is achieved by verifying the hash value of the plaintext created by the modified message digest algorithm at the receiver side. Hashing the plaintext at the senderpsilas side using a modified message digest algorithm and verified at the receivers end.