StegoCrypt Scheme using LSB-AES Base64

Many people use the internet in their daily communication. But the risks of data theft on the internet are quite high, so sending security is a very important thing for data. Cryptography and steganography is a technique used to secure data to minimize data theft and access by unauthorized people. Combination of Least Significant Bit (LSB) - Advanced Encryption Standard (AES) - Base64 is proposed in this study to provide protection for messages and various file formats embedded in digital images. Secret messages are encrypted with the AES and Base64 methods before being inserted into the image using the LSB method. The study also analyzed the performance of the LSB-AES-Base64 combination of algorithms on various files and the size of the cover image. Cover images used an image with RGB channels. For measurement of imperceptibility performance used Peak Signal to Noise Ratio (PSNR), Mean Square Error (MSE), and histogram analysis. Based on the results of testing, the proposed method can work well with the value of PNSR and MSE in a very good category. The stego image histogram is also identic to the original image.