Steganography – Best method to achieve message security

Steganography is the art of writing messages in such a way that no one understands it apart from the sender and intended recipient. The word Steganography derived from a Greek word called ‘steganos’ and ‘graphei’ that means covered and writing respectively. Today, with the advancement of technology, the information or data transmitted digitally needs more security and privacy. To achieve confidentiality over digital media, the art of writing messages in hidden or encrypted form has been increased. Steganography is the process of hiding sensitive information within something that appears to be nothing out of the usual.

Basically, there are following steps involved in the Steganography:-

To transmit data the “Cover Image” is used.

The resulting image called the “Stego –Image” is transmitted.

For retrieving the data which is hidden, the inverse procedure is followed and applied at the side of receiver.

The information that is covered in this process is made invisible by embedding the information in a cover media. Steganography is somewhat similar to the cryptography but the only difference is that in cryptography one cannot see the message but in Steganography whole existence of the message is hidden. Both methods are best ways to protect information from unwanted parties. Today, Computer Science is achieving great heights with these types of developments that provide security to the user as well as to the message.