• P-ISSN 0974-6846 E-ISSN 0974-5645

Indian Journal of Science and Technology


Indian Journal of Science and Technology

Year: 2014, Volume: 7, Issue: 3, Pages: 323-334

Original Article

Lossless Audio Steganography based on Lifting Wavelet Transform and Dynamic Stego Key.

Received Date:02 February 2014, Accepted Date:22 February 2014, Published Date:03 March 2014


This paper presents a new lossless audio steganography approach based on Integer-to-Integer Lifting Wavelet Transform (Int2Int LWT) and Least Significant Bits (LSBs) substitution. In order to increase the security level a simple encryption with adaptive key has been proposed. The experimental results show that this approach has excellent transparency (above 45 dB of signal to noise ratio) with fixed high embedding capacity (25% from the audio cover signal size) and full recovery for the hidden secret message. Furthermore, robustness tests show immunity of the method against additive noise and perceptual statistical analysis. The proposed hiding and recovery procedures are simple and symmetry; therefore it can be easily used for real-time covert communication.

Keywords: Audio Steganography, Embedding Capacity, Full Recovery, Imperceptibility, Security Lifting Wavelet Transform (LWT)


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