Message hiding in audio file using variation of playfair cipher and audio steganography

Steganography is the method by which data or files can be hidden in Image files or any other type of file. Steganography is often confused with cryptography because the two are similar in the way that they both are used to protect confidential information. The difference between the two is in the appearance of the processed output. The output of steganography operation is not apparently visible but in cryptography the output is scrambled so that it can draw attention. This paper focuses on the strength of combining cryptography and steganography methods, variation of playfair cipher, 512 base conversion which results in enhancement of security.