|Project Description: ||Communication of data by maintaining confidentiality is a major issue everywhere, so to increase the security a non – conventional approach called steganography is proposed. “Steganography” is an art of “hiding data within data” [1,2]. In general, Stego means “covering” and graphia means “writing”. Combining these two terms gives the meaning of steganography, i.e. ”covered writing”. It is similar to cryptography with a small difference; cryptography makes use of scrambling of data techniques whereas steganography makes use of the carrier file of some type to store the information . It is easy to capture a cryptographic message but it is not easy to know the steganographic message. “Steganography’s objective is to transmit a message from one end to the other via harmless carrier/medium. By making use of this method, the attacks on the message are very rare because the attacks do not know what the actual message is . Embedion with steganography will produce much more secure data communication. It can be used for different types of data formats, of which the most popular are .gif, .txt, .wav, .bmp and .jpeg. These types of files are called carriers. In general, the most common examples of steganography are invisible ink, covert channel and microdot [2,6]. This concept is used everywhere or in any technology to send confidential information.
A new type of steganography approach has been proposed named PowerPoint file Steganography”. Data hiding is done in the sound/custom animation effects of the PowerPoint file. To implement this technique, a codebook is designed which contains the confidential details of the sound effects and the text information that needs to be transferred.