An active audio steganography attacking method using discrete spring transform

Abstract

The significant development of cell phone and mobile network in recent years leads to some security concerns caused by increasing capacity of the networks and the large margin of the multimedia data. Audio steganography is a proven way to hide information in digital audio signals, where many schemes have been effective at hiding large amounts of data. In order to prevent the malicious threat of the audio steganog-raphy, the countermeasure of audio steganography is also an important topic. In this paper, we propose a novel steganographic attack which can defeat audio steganography algorithms while maintaining an acceptable audio distortion level. The attacking method is based on a proposed transform called discrete spring transform. Similar to the time scale modification, the spring transform disables the synchronization of the hidden information. Furthermore, the proposed method has some advantages over the traditional time scale modification, therefore the steganography method which can resist to the time scale modification still can be defeated by the proposed method. The simulation results show that the proposed method successfully defeat some audio steganography methods which are resistant to the time scale modification with subjective auditory quality score no worse than -0.1.