Digital Steganography Security

History Of Steganography

The word Steganography comes from the words “Steganos” means cover or secret and “graphy” means writing. The veiling of one form of data within another form of data is called Steganography. Many incidents are revealing that Steganography is not a new technique for this world. The first incident was, Ancient Greek Ruler Histaeus used to shave the head of his slave, tattooing in the scalp and wait for hair to grow. Then send the slave to recipients to convey the hidden message. The recipient would have shaved the slave's head to see the message. In the second incident, Demestrus wrote a message to his friend in the wooden carve of the wax tablet that seemed to be simple. In the third incident, During the American & British Revolutionary, they use invisible ink to exchange information. In the fourth incident, during World War 2, Germans used microdots. Later, Null ciphers were used i.e. unencrypted message send within the real readable format. For example, Police report emergencies in downtown ending near Tuesday by taking the first letter on each word on the given sentence, it gives the result “PRESIDENT”. This is called null cipher. As the years have grown, Steganographic techniques also grow and emerge as the strongest technique to secure the data. (Siper, Farley, R & Lombardo, 2005)