Protection of images by combination of vernam stream cipher, AES, and LSB steganography in a video clip

Abstract

Visual communication has become more popular in recent years. Because data must be transferred safely over a restricted bandwidth, then techniques of data security and preservation such as masking and encryption have to be included after the optimization process for the image in question. The two most common methods of data protection are encryption and steganography. Steganography is a way for covering data that is hidden in another medium without leaving any proof of the data being changed, whereas cryptography converts regular data into incomprehensible data, which is known as scrambled data. Using the least significant bit (LSB) technique, the information was scrambled with graphics. The Vernam encryption algorithm and the advanced encryption standard (AES) will have a side in the proposed method in the encryption step. The three improvement proposals using quality standards and encryption will be compared with the Vernam encryption algorithm and the AES encryption algorithm. The effect of the improvement ratio and the size of the encrypted data with different threshold values will be investigated.