Journal of Applied Mathematics & Bioinformatics

A Novel Audio Steganography Telecom System

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• Abstract

   

  This paper presents a novel telecommunication system based on audio steganography. Cryptographic as well as steganographic techniques have been employed to increase security. Initially the plaintext is encrypted using a symmetric cryptographic function based on a pseudo-random number generator (PRNG1), to produce the ciphertext; next, the ciphertext is randomly and evenly distributed (i.e., hidden) through-out a cover audio signal by means of a second PRNG, to produce the stego-signal. The resulting stego-sound is transmitted over the (inse-cure) channel. At the Receiver, the inverse operations take place, but in reverse order. Matlab simulation results as well as steganalysis tests which demonstrate increased security are presented. Using this system, two users may exchange confidential text messages hidden in attached audio files - among other applications.