Novel Text Steganography through Special Code Generation

Encrypted messages sending frequently draws the attention of third parties, perhaps causing attempts to break and reveal the original messages. Steganography is introduced to hide the existence of the communication by concealing a secret message in an appropriate carrier like text, image, audio or video. Steganography is of Greek origin and means "Covered or hidden writing". The carrier can be sent to a receiver without any one except the authenticated receiver only knows existence of the information. Steganography is often being used together with cryptography and offers an acceptable amount of privacy and security over the communication channel. It is an emerging area which is used for secured data transmission over any public media. In this paper, a novel text based steganography technique based on the use of indefinite articles 'a' or 'an' in conjunction with the non-specific or non-particular nouns in English language have been proposed. The authors also introduced a new code representation technique (SSCE - Secret Steganography Code for Embedding) at both ends in order to achieve high level of security. Before the embedding operation each character of the secret message has been converted to SSCE Value and then embeds to cover text. Finally stego text is formed and transmits to the receiver side. At the receiver side different reverse operation has been carried out to get back the original information.