Integrating RSA cryptography & audio steganography

Information security plays a vital role during internet communication in today's era of technology. It is one of the most challenging issues now days. It is extremely important for people committing e-transactions like online shopping, money transfer etc. Cryptography and Steganography are some of the methods that are used for secure communication. The principle of cryptography is to manipulate the information so that unintended receiver will not be able to understand however the principle of steganography is to mask the very presence of communication; it hides the existence of message. Both the techniques are widely used to prevent not deliberated receiver's attacks from unauthorized access. This paper proposes a technique that provides multilayer security by integrating cryptography with steganography. The coding has been done in MATLAB and Stimulated results have been shown.