DLSB- The distanced least significant bit steganography

Today, LSB (Least Significant Bit) method is still used in many corporate, commercial and personal steganography tools that hide messages in 24-bit, 8-bit color and gray-scale images. The reason why this method is often preferred is that it can be applied very easily and it allows a very large message storage capacity. However, Pixel Attack, which can be easily applied against the LSB method and visualizes the traces of the embedded message, maintains its place in the literature and in the steganalist's toolbox. In this study, instead of continuous message bit placement used in LSB method, DLSB (Distanced Least Significant Bit) - Removed Most Significant Bit Steganography, which is a basic method that uses proportional distance message bit placement and is resistant to Pixel Attack, is proposed. Theory and Methods: With DLSB, it is used to place the message in the image with a proportional distribution / spacing, depending on the size of the message and the image. of the picture is replaced with the binary equivalent of the.((SIC))value. This is different from the LSB method, in which the distance between each message bit and the previous / next message bit is placed in the picture instead of the message size. Conclusion: Steganography performed on Bitmap image files with LSB method cannot resist Pixel Attack. Other steganography methods, which rely on compressing the message with various compression methods, are also affected by this attack. The DLSB method presented in this study applies a simple proportional distribution of message bits into the image. In the Pixel Attack, it was observed that the message was not piled up in a certain area in the image. DLSB is the first method to protect against Pixel Attack against LSB method. In addition, when DSLB and a compression method are used together, it has been observed that successful results are obtained in Peak Signal-to-Noise Ratio, R.S., Chi-Square, Sample of Pairs and Primary Sets analyzes.