Enhancing the Security and Quality of Image Steganography Using a Novel Hybrid Technique

Steganography is a technique of hiding the private messages inside the cover image. The main objective of steganography is to send information or message in hidden manner from source to destination in such a way that the intruder or attacker cannot crack the contents of the message and even would be unable to feel the presence of secret message. The proposed method introduced as a new hybrid security model based on steganography. AES algorithm with chaos function to encrypt secret message on first level has been used and RSA algorithm to encrypt secret message on second level have been used. LSB technique is used to hide encrypted message into cover medium. The proposed technique is tested on various images. The PSNR value is calculated for better picture quality of stego image.