Abstract
With the rapid development of digital multimedia applications, the secure data transmission becomes the main issue in data communication system. So the multimedia data hiding techniques have been developed to ensure the secured data transfer. Steganography is an art of hiding a secret message within an image/audio/video file in such a way that the secret message cannot be perceived by hacker/intruder. In this study, we use RSA encryption algorithm to encrypt the message and Genetic Algorithm (GA) to encode the message in the audio file. This study presents a method to access the negative audio bytes and includes the negative audio bytes in the message encoding and position embedding process. This increases the capacity of encoding message in the audio file. The use of GA operators in Genetic Algorithm reduces the noise distortions.
Highlights
In the vast area of network, information security becomes most challenging part
The hacker can intercept the cipher text and perceive the information using cryptanalysis attacks. This problem has been eliminated with the help of steganography technique (Zaidoon et al, 2010)
The negative audio byte can be processed as 32-bit sample and the positive audio byte can be processed as 16-bit sample
Summary
In the vast area of network, information security becomes most challenging part. Several technologies were developed to provide secure transmission over internet. Cryptography has been widely used to transfer converted data over the internet. In Cryptography, the sender encrypts the plaintext using private/public key to produce cipher text and transfer that in the internet. The receiver extracts the plaintext by decrypting the cipher text using private/public key. The hacker can intercept the cipher text and perceive the information using cryptanalysis attacks. This problem has been eliminated with the help of steganography technique (Zaidoon et al, 2010)
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