Secured PVD Video Steganography Method based on AES and Linear Congruential Generator

Abstract

It is inevitable that technology is advancing and entering the digital era. So that data security is a problem that is often found in this era, there are many ways to secure data. Some ways to secure data include cryptography and steganography. One cryptographic algorithm that has high security standards is Advanced Encryption Standard (AES). While steganography is a way to insert messages into certain media, but it does not appear to change the original media. This study proposes a security technique for secret texts encrypted with the AES method, then hidden into one of the video frames covers using the Pixel-value differencing (PVD) steganography method. To determine the frame to be watched, the Linear Congruential Generator (LCG) algorithm is used. The proposed method proved to be satisfactory because it produced an average MSE value of less than 0.15 and PSNR averaged over 57 dBs. Message security is also more awake because messages are protected in double by AES encryption and secret keys used to run LCG generators.