An imperceptible LSB image hiding on edge region using DES encryption

Abstract

Sending image in a plain form has a high risk for the data being vulnerable to steal. Thus, due to reducing the risk, data security techniques should be implemented. Data security techniques can be done using Cryptography and Steganography. Based on the literature, the combination of cryptography and steganography can enhance results. Cryptography as one of science in information security, which used in the process of securing image. One of the cryptographic methods that have been used to secure the data is Data Encryption Standard (DES). This algorithm often implemented for the encryption process in an ATM machine and SIM card operator worldwide. Our proposed method firstly encrypts the image message using DES encryption. This process produces visible data, which is caused suspicion by others. In this paper, to conceal the encrypted image, we used steganography method. Our experiment chooses Least Significant Bit (LSB) based on canny edge detection. LSB algorithm was chosen because it is simple to be implemented and has good imperceptible value. Then, canny edge detection used to determines the coordinates of the object's edges of the cover image. We utilize the Canny coordinate result as the position to embed the image message because of the results more accurate and it can improve imperceptibility. Our experimental results were measured using Mean Square Error (MSE) and Peak Signal to Noise Ratio (PSNR). From the measurement, results obtained the best MSE value is 0.0038557 and PSNR are 72.2698 dB.