An introduction to steganography methods
In this paper, we are going to introduce different types of steganography considering the cover data. As the first step, we will talk about text steganog raphy and investigate its details. Then, image steg ano raphy and its techniques will be investigated. Some techn iques including Least Significant Bits, Masking and filtering and Transformations will be subjected during image st ganography. Finally, audio steganography which contains LSB Coding, Phase Coding, Spread Spectrum and Echo Hiding techniques will be described. Key word: Steganography text steganography image steganography audio steganography