A Strong Encryption Method of Sound Steganography by Encoding an Image to Audio
Keywords:
Cryptography, encryption, steganography, sound steganography.Abstract
The recently created technology of steganography
entices a wide audience from the casual observer, to the scientific professional. Steganography is defined as the art and science of writing hidden messages in such a way that the hidden message is unnoticed by someone that is not aware of its content. This paper attempts to reveal new and current angles of steganography. When the hidden message is an image which is encoded into an audio file, the process is termed as Sound Steganography. In this work, we have designed a practically secure sound steganographic method, an algorithm which could encode a picture into sound and then read it again in order to obtain image through sound. The algorithm used is simple and optimal, named the color palette substitution. Sound steganography is implemented in two stages, namely image cryptography, where the image is encoded to sound, being the first and reading the sound in a frequency spectrum, being the second. Also the image converted audio is embedded over another music file to form a stronger encryption. MATLAB 7.0.1 with image processing and signal processing toolboxes is used as the development tool for implementing the algorithm.
Downloads
Downloads
Published
Issue
Section
License
You are free to:
- Share — copy and redistribute the material in any medium or format for any purpose, even commercially.
- Adapt — remix, transform, and build upon the material for any purpose, even commercially.
- The licensor cannot revoke these freedoms as long as you follow the license terms.
Under the following terms:
- Attribution — You must give appropriate credit , provide a link to the license, and indicate if changes were made . You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
Notices:
You do not have to comply with the license for elements of the material in the public domain or where your use is permitted by an applicable exception or limitation .
No warranties are given. The license may not give you all of the permissions necessary for your intended use. For example, other rights such as publicity, privacy, or moral rights may limit how you use the material.
