HIDING CIPHERING MESSAG IN AUDIO FILE | ||
| Iraqi Journal of Information Technology | ||
| Article 1, Volume 6, Issue 3, July 2014, Pages 1-7 | ||
| Authors | ||
| Israa Muhammed Alwan; Ayad Ghazi Naser AL-Shamari | ||
| Abstract | ||
| Computer technology and the Internet have made a breakthrough in the existence of data communication. This has opened a whole new way of implementing steganography to ensure secure data transfer. Steganography is the fine art of hiding the information. Steganography is the dark cousin of cryptography, the use of codes. While cryptography provides privacy, steganography is intended to provide secrecy. Privacy is what you need when you use your credit card on the Internet -- you don't want your number revealed to the public. For this, you use cryptography, and send a coded pile of gibberish that only the web site can decipher. Though your code may be unbreakable, any hacker can look and see you've sent a message. For true secrecy, you don't want anyone to know you're sending a message at all. Steganography complements rather than replaces encryption by adding another layer of security- it is much more difficult to decrypt a message if it is not known that there is a message. The basic idea of the paper is to present methods that hides cipher text information (using affine cipher) in cover audio(wave file ) using Least Significant Bit (LSB) coding and use MSE ( Mean Square Error) which defined as the square of error between cover audio and stego audio, and PSNR (peak signal to noise ratio) which define as the ratio between the maximum possible power of a signal and the power of corrupting noise that affects the fidelity of its representation. | ||
| Keywords | ||
| information security; ciphering; hachers | ||
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