Hiding Text In Audio Using Multiple LSB Steganography And Provide Security Using Cryptography

Abstract Steganography is an art and science of writing hidden messages in such a way that no one apart from the intended recipient knows the existence of the message.The maximum number of bits that can be used for LSB audio steganography without causing noticeable perceptual distortion to the host audio signal is 4 LSBs if 16 bits per sample audio sequences are used.We propose two novel approaches of substitution technique of audio steganography that improves the capacity of cover audio for embedding additional data. Using these methods message bits are embedded into multiple and variable LSBs. These methods utilize upto 7 LSBs for embedding data.Results show that both these methods improve capacity of data hiding of cover audio by 35 to 70 as compared to the standerd LSB algorithm with 4 LSBs used for data embedding. And using encryption and decryption techniques performing cryptography. So for this RSA algorithm used.