Reduced share size Audio Secret Sharing

Communication over the network generally consists of conveying the messages in the form of texts and images. In recent times communication through audio has been introduced and has changed the scenario of transmission and reception of messages, which makes it mandatory to provide proper security to the audio data. Audio Secret Sharing provides a means of transmitting the secret audio message over a network securely. This is done essentially by dividing the original secret message into a pre-defined number of shares. To formulate the original secret a specified number of shares have to be combined and anything less than the specification provided would render the message unattainable. This paper puts forth the Audio Secret Sharing scheme based on Matrix Projection. The proposed scheme lends security and reliability to the audio files and also the share size has been reduced to a great extent.